BUFR and CREX Code & Flag Table

As used by Cipher SoftBUFR and T-CREX Class Libraries, based on WMO Code & Flag Table version 15

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This HTML-formatted table is based on a WMO document.
Please consult the original WMO document for more details and for possible notes.

Update history


Links to classes:     01 02 04 08 10 11 13 15 19 20 21 22 23 24 25 26 29 30 31 33 35 40


Class 01


0'01'003 - WMO Region number/geographical area

 C 001003
     0 Antarctica
     1 Region I
     2 Region II
     3 Region III
     4 Region IV
     5 Region V
     6 Region VI
     7 Missing value

0'01'007 - Satellite identifier

 C 001007
     0 Reserved
     1 ERS1
     2 ERS2
     3 METOP-1
     4 METOP-2
     5 METOP-3
    20 SPOT1
    21 SPOT2
    22 SPOT3
    23 SPOT4
    40 OERSTED
    41 CHAMP
    42 TerraSAR-X
    46 SMOS
    50 METEOSAT 3
    51 METEOSAT 4
    52 METEOSAT 5
    53 METEOSAT 6
    54 METEOSAT 7
    55 METEOSAT 8
    56 METEOSAT 9
    57 METEOSAT 10
    58 METEOSAT 1
    59 METEOSAT 2
    60 ENVISAT
    70 METEOSAT 11
   120 ADEOS
   121 ADEOS II
   140 GOSAT
   150 GMS 3
   151 GMS 4
   152 GMS 5
   171 MTSAT-1R
   172 MTSAT-2
   200 NOAA 8
   201 NOAA 9
   202 NOAA 10
   203 NOAA 11
   204 NOAA 12
   205 NOAA 14
   206 NOAA 15
   207 NOAA 16
   208 NOAA 17
   209 NOAA 18
   220 LANDSAT 5
   221 LANDSAT 4
   222 LANDSAT 7
   223 NOAA 19
   224 NPP
   240 DMSP 7
   241 DMSP 8
   242 DMSP 9
   243 DMSP 10
   244 DMSP 11
   245 DMSP 12
   246 DMSP 13
   247 DMSP 14
   248 DMSP 15
   249 DMSP 16
   250 GOES 6
   251 GOES 7
   252 GOES 8
   253 GOES 9
   254 GOES 10
   255 GOES 11
   256 GOES 12
   257 GOES 13
   258 GOES 14
   259 GOES 15
   260 JASON 1
   261 JASON 2
   281 QUIKSCAT
   282 TRMM
   283 CORIOLIS
   285 DMSP17
   286 DMSP18
   310 GOMS 1
   311 GOMS 2
   320 METEOR 2-21
   321 METEOR 3-5
   322 METEOR 3M-1
   323 METEOR 3M-2
   341 RESURS 01-4
   410 KALPANA-1
   430 INSAT 1B
   431 INSAT 1C
   432 INSAT 1D
   450 INSAT 2A
   451 INSAT 2B
   452 INSAT 2E
   470 INSAT 3A
   471 INSAT 3D
   472 INSAT 3E
   500 FY-1C
   501 FY-1D
   510 FY-2
   512 FY-2B
   513 FY-2C
   514 FY-2D
   520 FY3A
   700 TIROS M (ITOS 1)
   701 NOAA 1
   702 NOAA 2
   703 NOAA 3
   704 NOAA 4
   705 NOAA 5
   706 NOAA 6
   707 NOAA 7
   708 TIROS-N
   710 GOES (SMS 1)
   711 GOES (SMS 2)
   720 TOPEX
   721 GFO (GEOSAT follow-on)
   722 GRACE A
   723 GRACE B
   731 GOES 1
   732 GOES 2
   733 GOES 3
   734 GOES 4
   735 GOES 5
   740 COSMIC-1
   741 COSMIC-2
   742 COSMIC-3
   743 COSMIC-4
   744 COSMIC-5
   745 COSMIC-6
   763 NIMBUS 3
   764 NIMBUS 4
   765 NIMBUS 5
   766 NIMBUS 6
   767 NIMBUS 7
   780 ERBS
   781 UARS
   782 EARTH PROBE
   783 TERRA
   784 AQUA
   785 AURA
   800 SUNSAT
   820 SAC-C
  1023 Missing value
 
850-998 Reserved 999-1022 Reserved

0'01'024 - Wind Speed source

 C 001024
     0	No wind speed data available
     1	AMSR-E data
     2	TMI data
     3	NWP: ECMWF
     4	NWP: UK Met Office
     5	NWP: NCEP
     6	Reference climatology
     7	ERS_Scatterometer
    31	Missing value
 
8-30 Reserved for future use

0'01'028 - Aerosol optical Depth (AOD) source

 C 001028
     0	No AOD data available
     1	NESDIS
     2	NAVOCEANO
     3	NAAPS
     4	MERIS
     5	AATSR
    31	Missing value
 
6-30 Reserved for future use

0'01'029 - SSI Source

 C 001029
     0	No SSI data available
     1	MSG_SEVIRI
     2	GOES East
     3	GOES West
     4	ECMWF
     5	NCEP
     6	UK Met Office
    31	Missing value
 
7-30 Reserved for future use

0'01'031 - Identification of originating/generating centre

(See 0'01'033, which should be used instead for encoding)


0'01'033 - Identification of originating/generating centre

 C 001033
     0 WMO Secretariat
     1 Melbourne
     2 Melbourne
     3 (reserved)
     4 Moscow
     5 Moscow
     6 (reserved)
     7 US National Weather Service, National Centres for Environmental Prediction (NCEP)
     8 US National Weather Service Telecommunications Gateway (NWSTG)
     9 US National Weather Service - Other
    10 Cairo (RSMC)
    11 (reserved)
    12 Dakar (RSMC)
    13 (reserved)
    14 Nairobi (RSMC)
    15 (reserved)
    16 Casablanca (RSMC)
    17 Tunis (RSMC)
    18 Tunis-Casablanca (RSMC)
    19 (reserved)
    20 Las Palmas
    21 Algiers (RSMC)
    22 ACMAD
    23 Mozambique (NMC)
    24 Pretoria (RSMC)
    25 La Reunion (RSMC)
    26 Khabarovsk (RSMC)
    27 (reserved)
    28 New Delhi (RSMC)
    29 (reserved)
    30 Novosibirsk (RSMC)
    31 (reserved)
    32 Tashkent (RSMC)
    33 Jeddah (RSMC)
    34 Tokyo (RSMC), Japan Meteorological Agency
    35 (reserved)
    36 Bangkok
    37 Ulan Bator
    38 Beijing (RSMC)
    39 (reserved)
    40 Seoul
    41 Buenos Aires (RSMC)
    42 (reserved)
    43 Brasilia (RSMC)
    44 (reserved)
    45 Santiago
    46 Brazilian Space Agency - INPE
    47 Colombia NMC
    48 Ecuador NMC
    49 Peru NMC
    50 Venezuela NMC
    51 Miami (RSMC)
    52 Miami (RSMC), National Hurricane Centre
    53 Montreal (RSMC)
    54 (reserved)
    55 San Francisco
    56 ARINC Centre
    57 US Air Force - Air Force Global Weather Central
    58 Fleet Numerical Meteorology and Oceanography Center, Monterey, CA, USA
    59 The NOAA Forecast Systems Laboratory, Boulder, CO, USA
    60 United States National Centre for Atmospheric Research (NCAR)
    61 Service ARGOS - Landover
    62 US Naval Oceanographic Office
    63 IRI (International Research Institute for Climate and Society)
    64 Honolulu (RSMC)
    65 Darwin (RSMC)
    66 (reserved)
    67 Melbourne (RSMC)
    68 (reserved)
    69 Wellington (RSMC)
    70 (reserved)
    71 Nadi (RSMC)
    72 Singapore
    73 Malaysia NMC
    74 UK Meteorological Office - Exeter (RSMC)
    75 (reserved)
    76 Moscow (RSMC)
    77 Reserved
    78 Offenbach (RSMC)
    79 (reserved)
    80 Rome (RSMC)
    81 (reserved)
    82 Norrkoping
    83 (reserved)
    84 Toulouse (RSMC)
    85 Toulouse (RSMC)
    86 Helsinki
    87 Belgrade
    88 Oslo
    89 Prague
    90 Episkopi
    91 Ankara
    92 Frankfurt/Main
    93 London (WAFC)
    94 Copenhagen
    95 Rota
    96 Athens
    97 European Space Agency (ESA)
    98 European Centre for Medium-range Weather Forecasts (ECMWF), (RSMC)
    99 De Bilt
   100 Brazzaville
   101 Abidjan
   102 Libyan Arab Jamahiriya NMC
   103 Madagascar NMC
   104 Mauritius NMC
   105 Niger NMC
   106 Seychelles NMC
   107 Uganda NMC
   108 Tanzania NMC
   109 Zimbabwe NMC
   110 Hong-Kong, China
   111 Afghanistan NMC
   112 Bahrain NMC
   113 Bangladesh NMC
   114 Bhutan NMC
   115 Cambodia NMC
   116 Democratic People's Republic of Korea NMC
   117 Islamic Republic of Iran NMC
   118 Iraq NMC
   119 Kazakhstan NMC
   120 Kuwait NMC
   121 Kyrgyz Republic NMC
   122 Lao People's Democratic Republic NMC
   123 Macao, China
   124 Maldives NMC
   125 Myanmar NMC
   126 Nepal NMC
   127 Oman NMC
   128 Pakistan NMC
   129 Qatar NMC
   130 Republic of Yemen NMC
   131 Sri Lanka, NMC
   132 Tajikistan NMC
   133 Turkmenistan NMC
   134 United Arab Emirates NMC
   135 Uzbekistan, NMC
   136 Socialist Republic of Viet Nam NMC
   140 Bolivia NMC
   141 Guyana NMC
   142 Paraguay NMC
   143 Suriname NMC
   144 Uruguay NMC
   145 French Guyana
   146 Brazilian Navy Hydrographic Centre
   147 COmision Nacional de Actividades Espaciales (CONAE) - Argentina
   150 Antigua and Barbuda NMC
   151 Bahamas NMC
   152 Barbados NMC
   153 Belize NMC
   154 British Caribbean Territories Centre
   155 San Jose
   156 Cuba NMC
   157 Dominica NMC
   158 Dominican Republic NMC
   159 El Salvador NMC
   160 US NOAA/NESDIS
   161 US NOAA Office of Oceanic and Atmospheric Research
   162 Guatemala NMC
   163 Haiti NMC
   164 Honduras NMC
   165 Jamaica NMC
   166 Mexico
   167 Netherlands Antilles and Aruba NMC
   168 Nicaragua NMC
   169 Panama NMC
   170 Saint Lucia NMC
   171 Trinidad and Tobago NMC
   172 French Departments in RA IV
   173 US National Aeronautics and Space Administration (NASA)
   174 Integrated System Data Management/Marine Environmental Data Service (ISDM/MEDS - Canada)
   190 Cook Islands NMC
   191 French Polynesia NMC
   192 Tonga NMC
   193 Vanuatu NMC
   194 Brunei Darussalam NMC
   195 Indonesia NMC
   196 Kiribati NMC
   197 Federated States of Micronesia NMC
   198 New Caledonia NMC
   199 Niue
   200 Papua New Guinea NMC
   201 Philippines NMC
   202 Samoa NMC
   203 Solomon Islands NMC
   204 National Institute of Water and Atmospheric Research (NIWA – New Zealand)
   210 Frascati (ESA/ESRIN)
   211 Lannion
   212 Lisboa
   213 Reykjavik
   214 Madrid
   215 Zrich
   216 Service ARGOS Toulouse
   217 Bratislava
   218 Budapest
   219 Ljubljana
   220 Warsaw
   221 Zagreb
   222 Albania NMC
   223 Armenia NMC
   224 Austria NMC
   225 Azerbaijan NMC
   226 Belarus NMC
   227 Belgium NMC
   228 Bosnia and Herzegovina NMC
   229 Bulgaria NMC
   230 Cyprus NMC
   231 Estonia NMC
   232 Georgia NMC
   233 Dublin
   234 Israel NMC
   235 Jordan NMC
   236 Latvia NMC
   237 Lebanon NMC
   238 Lithuania NMC
   239 Luxembourg
   240 Malta NMC
   241 Monaco
   242 Romania NMC
   243 Syrian Arab Republic NMC
   244 The former Yugoslav Republic of Macedonia NMC
   245 Ukraine NMC
   246 Republic of Moldova NMC
   247 Operational Programme for the Exchange of weather RAdar information (OPERA) - EUMETNET
   254 EUMETSAT Operation Centre
   255 Missing value
 
137-139 Reserved for other centres 148-149 Reserved for other centres 175-189 Reserved for other centres 205-209 Reserved for other centres 248-253 Reserved for other centres

Notes:

  1. Please see WMO manual.
  2. Please see WMO manual.
  3. With BUFR, to indicate whether the originating/generating centre is a sub-centre or not, the following procedure should be applied:
    Use in BUFR Edition 3 of Octet 5, Section 1 with the following meaning:

    Code figure 0:
    Not a sub-centre, the originating/generating centre is the centre defined by Octet 6, Section 1 of BUFR edition 3.

    Code figures 1 to 254:
    Identifier of the sub-centre which is the originating/generating centre. The identifier of the sub-centre is allocated by the associated centre which is defined by octet 6, Section 1 of BUFR Edition 3. The sub-centre(s) identifiers should be supplied to the WMO Secretariat by the associated centre(s) for publication.
  4. For Sub-centres definition provided to the WMO Secretariat, see Common table C-12 in WMO manual.

0'01'034 - Identification of originating/generating sub-centre

(To be defined by centres themselves)

Please consult WMO manual for this code table.


0'01'035 - Originating / generating centre

 C 001035
     0 WMO Secretariat
     1 Melbourne
     2 Melbourne
     3 (reserved)
     4 Moscow
     5 Moscow
     6 (reserved)
     7 US National Weather Service, National Centres for Environmental Prediction(NCEP)
     8 US National Weather Service TelecommunicationsGateway (NWSTG)
     9 US National Weather Service - Other
    10 Cairo (RSMC)
    11 (reserved)
    12 Dakar (RSMC)
    13 (reserved)
    14 Nairobi (RSMC)
    15 (reserved)
    16 Casablanca (RSMC)
    17 Tunis (RSMC)
    18 Tunis Casablanca (RSMC)
    19 (reserved)
    20 Las Palmas
    21 Algiers (RSMC)
    22 ACMAD
    23 Mozambique NMC
    24 Pretoria (RSMC)
    25 La Reunion (RSMC)
    26 Khabarovsk (RSMC)
    27 (reserved)
    28 New Delhi (RSMC)
    29 (reserved)
    30 Novosibirsk (RSMC)
    31 (reserved)
    32 Tashkent (RSMC)
    33 Jeddah (RSMC)
    34 Tokyo (RSMC), Japan Meteorological Agency
    35 (reserved)
    36 Bangkok
    37 Ulan Bator
    38 Beijing (RSMC)
    39 (reserved)
    40 Seoul
    41 Buenos Aires (RSMC)
    42 (reserved)
    43 Brasilia (RSMC)
    44 (reserved)
    45 Santiago
    46 Brazilian Space Agency - INPE
    47 Colombia NMC
    48 Ecuador NMC
    49 Peru NMC
    50 Venezuela NMC
    51 Miami (RSMC)
    52 Miami RSMC, National Hurricane Center
    53 Montreal (RSMC)
    54 (reserved)
    55 San Francisco
    56 ARINC Centre
    57 U.S. Air Force Air Force Global Weather Central
    58 Fleet Numerical Meteorology and Oceanography Center, Monterey, CA
    59 The NOAA Forecast Systems Laboratory, Boulder, CO, USA
    60 United States National Centre for Atmospheric Research (NCAR)
    61 Service ARGOS - Landover
    62 U.S. Naval Oceanographic Office
    63 IRI (International Research Institute for Climate and Society)
    64 Honolulu (RSMC)
    65 Darwin (RSMC)
    66 (reserved)
    67 Melbourne (RSMC)
    68 Reserved
    69 Wellington (RSMC)
    70 (reserved)
    71 Nadi (RSMC)
    72 Singapore
    73 Malaysia NMC
    74 UK Meteorological Office - Exeter (RSMC)
    75 (reserved)
    76 Moscow (RSMC)
    77 Reserved
    78 Offenbach (RSMC)
    79 (reserved)
    80 Rome (RSMC)
    81 (reserved)
    82 Norrkoping
    83 (reserved)
    84 Toulouse (RSMC)
    85 Toulouse (RSMC)
    86 Helsinki
    87 Belgrade
    88 Oslo
    89 Prague
    90 Episkopi
    91 Ankara
    92 Frankfurt/Main
    93 London (WAFC)
    94 Copenhagen
    95 Rota
    96 Athens
    97 European Space Agency (ESA)
    98 ECMWF, RSMC
    99 De Bilt
   100 Brazzaville
   101 Abidjan
   102 Libyan Arab Jamahiriya NMC
   103 Madagascar NMC
   104 Mauritius NMC
   105 Niger NMC
   106 Seychelles NMC
   107 Uganda NMC
   108 Tanzania NMC
   109 Zimbabwe NMC
   110 Hong-Kong, China
   111 Afghanistan NMC
   112 Bahrain NMC
   113 Bangladesh NMC
   114 Bhutan NMC
   115 Cambodia NMC
   116 Democratic People's Republic of Korea NMC
   117 Islamic Republic of Iran NMC
   118 Iraq NMC
   119 Kazakhstan NMC
   120 Kuwait NMC
   121 Kyrgyz Republic NMC
   122 Lao People's Democratic Republic NMC
   123 Macao, China
   124 Maldives NMC
   125 Myanmar NMC
   126 Nepal NMC
   127 Oman NMC
   128 Pakistan NMC
   129 Qatar NMC
   130 Republic of Yemen NMC
   131 Sri Lanka NMC
   132 Tajikistan NMC
   133 Turkmenistan NMC
   134 United Arab Emirates NMC
   135 Uzbekistan NMC
   136 Socialist Republic of Viet Nam NMC
   140 Bolivia NMC
   141 Guyana NMC
   142 Paraguay NMC
   143 Suriname NMC
   144 Uruguay NMC
   145 French Guyana
   146 Brazilian Navy Hydrographic Centre
   147 COmision Nacional de Actividades Espaciales (CONAE) - Argentina
   150 Antigua and Barbuda NMC
   151 Bahamas NMC
   152 Barbados NMC
   153 Belize NMC
   154 British Caribbean Territories Centre
   155 San Jose
   156 Cuba NMC
   157 Dominica NMC
   158 Dominican Republic NMC
   159 El Salvador NMC
   160 US NOAA/NESDIS
   161 US NOAA Office of Oceanic and Atmospheric Research
   162 Guatemala NMC
   163 Haiti NMC
   164 Honduras NMC
   165 Jamaica NMC
   166 Mexico
   167 Netherlands Antilles and Aruba NMC
   168 Nicaragua NMC
   169 Panama NMC
   170 Saint Lucia NMC
   171 Trinidad and Tobago NMC
   172 French Departments in RA IV
   173 US National Aeronautics and Space Administration (NASA)
   174 Integrated System Data Management/Marine Environmental Data Service (ISDM/MEDS - Canada)
   190 Cook Islands NMC
   191 French Polynesia NMC
   192 Tonga NMC
   193 Vanuatu NMC
   194 Brunei NMC
   195 Indonesia NMC
   196 Kiribati NMC
   197 Federated States of Micronesia NMC
   198 New Caledonia NMC
   199 Niue
   200 Papua New Guinea NMC
   201 Philippines NMC
   202 Samoa NMC
   203 Solomon Islands NMC
   210 Frascati (ESA/ESRIN)
   211 Lannion
   212 Lisboa
   213 Reykjavik
   214 Madrid
   215 Zurich
   216 Service ARGOS Toulouse
   217 Bratislava
   218 Budapest
   219 Ljubljana
   220 Warsaw
   221 Zagreb
   222 Albania NMC
   223 Armenia NMC
   224 Austria NMC
   225 Azerbaijan NMC
   226 Belarus NMC
   227 Belgium NMC
   228 Bosnia and Herzegovina NMC
   229 Bulgaria NMC
   230 Cyprus NMC
   231 Estonia NMC
   232 Georgia NMC
   233 Dublin
   234 Israel NMC
   235 Jordan NMC
   236 Latvia NMC
   237 Lebanon NMC
   238 Lithuania NMC
   239 Luxembourg
   240 Malta NMC
   241 Monaco
   242 Romania NMC
   243 Syrian Arab Republic NMC
   244 The former Yugoslav Republic of Macedonia NMC
   245 Ukraine NMC
   246 Republic of Moldova
   247 Operational Programme for the Exchange of weather RAdar information (OPERA) - EUMETNET
   254 EUMETSAT Operation Centre
   255 Not to be used
   256 Angola NMC
   257 Benin NMC
   258 Botswana NMC
   259 Burkina Faso NMC
   260 Burundi NMC
   261 Cameroon NMC
   262 Cape Verde NMC
   263 Central African republic NMC
   264 Chad NMC
   265 Comoros NMC
   266 Democratic Republic of the Congo NMC
   267 Djibouti NMC
   268 Eritrea NMC
   269 Ethiopia NMC
   270 Gabon NMC
   271 Gambia NMC
   272 Ghana NMC
   273 Guinea NMC
   274 Guinea Bissau NMC
   275 Lesotho NMC
   276 Liberia NMC
   277 Malawi NMC
   278 Mali NMC
   279 Mauritania NMC
   280 Namibia NMC
   281 Nigeria NMC
   282 Rwanda NMC
   283 Sao Tome and Principe NMC
   284 Sierra Leone NMC
   285 Somalia NMC
   286 Sudan NMC
   287 Swaziland NMC
   288 Togo NMC
   289 Zambia NMC
 65535 Missing value
 
137-139 Reserved for other centres 148-149 Reserved for other centres 175-189 Reserved for other centres 204-209 Reserved for other centres 248-253 Reserved for other centres 290-65534 Reserved for other centres

Notes:

  1. Please see WMO manual.
  2. Please see WMO manual.
  3. With BUFR, to indicate whether the originating/generating centre is a sub-centre or not, the following procedure should be applied:
    Use in BUFR Edition 4 of Octets 7-8, Section 1 with the following meaning:

    Code figure 0:
    Not a sub-centre, the originating/generating centre is the centre defined by Octets 5-6, Section 1 of BUFR edition 4.

    Code figures 1 to 254:
    Identifier of the sub-centre which is the originating/generating centre. The identifier of the sub-centre is allocated by the associated centre which is defined by octets 5-6, Section 1 of BUFR Edition 4. The sub-centre(s) identifiers should be supplied to the WMO Secretariat by the associated centre(s) for publication.
  4. For Sub-centres definition provided to the WMO Secretariat, see Common table C-12 in WMO manual.

0'01'036 - Agency in charge of operating the observing platform

(The first 3 digits represent the ISO country code)

 C 001036
 036001 Australia, Bureau of Meteorology (BOM)
 036002 Australia, Joint Australian Facility for Ocean Observing Systems (JAFOOS)
 036003 Australia, the Commonwealth Scientific and Industrial Research Organisation (CSIRO)
 124001 Canada, Marine Environmental Data Service (MEDS)
 124002 Canada, Institute of Ocean Sciences (IOS)
 156001 China, The State Oceanic Administration
 156002 China, Second Institute of Oceanography, State Oceanic Administration
 156003 China, Institute of Ocean Technology
 250001 France, Institut de Recherche pour le Developpement (IRD)
 250002 France, Institut Francois de Recherche pour l'Exploitation de la mer (IFREMER)
 276001 Germany, Bundesamt fr Seeschiffahrt und Hydrographie (BSH)
 276002 Germany, Institut fr Meereskunde, Kiel
 356001 India, National Institute of Oceanography (NIO)
 356002 India, National Institute for Ocean Technology (NIOT)
 356003 India, National Centre for Ocean Information Servic
 392001 Japan, Japan Meteorological Agency (JMA)
 392002 Japan, Frontier Observational Research System for Global Change
 392003 Japan, Japan Marine Science and Technology Centre (JAMSTEC)
 410001 Korea Rep., Seoul National University
 410002 Korea Rep., Korea Ocean Research and Development Institute (KORDI)
 410003 Korea Rep., Meteorological Research Institute
 540001 New Caledonia, Institut de Recherche pour le Developpement (IRD)
 554001 New Zealand, National Institute of Water and Atmospheric Research (NIWA)
 643001 Russia, State Oceanographic Institute of Roshydromet
 643002 Russia, Federal Service for Hydrometeorology and Environmental Monitoring
 724001 Spain, Instituto Espanol de Oceanografia
 826001 United Kingdom, Hydrographic Office
 826002 United Kingdom, Southampton Oceanography Centre (SOC)
 840001 USA, NOAA Atlantic Oceanographic and Meteorological Laboratories (AOML)
 840002 USA, NOAA Pacific Marine Environmental Laboratories (PMEL)
 840003 USA, Scripps Institution of Oceanography (SIO)
 840004 USA, Woods Hole Oceanographic Institution (WHOI)
 840005 USA, University of Washington
 840006 USA, Naval Oceanographic Office
 1048575 Missing value

0'01'038 - Source of Sea Ice Fraction

 C 001038
     0	No sea ice set
     1	NSIDC SSM/I Cavalieri et al (1992)
     2	AMSR-E
     3	ECMWF
     4	CMS (France) cloud mask used by Medspiration
     5	EUMETSAT OSI-SAF
    31	Missing value

6-30 Reserved for future use

0'01'052 - Platform transmitter ID

 C 001052
     0 Primary
     1 Secondary
     2 Reserved
     3 Missing value

0'01'090 - Technique for making up initial perturbations

 C 001090
     0 LAF (Lagged-Average Forecasting)
     1 Breeding
     2 Singular vectors
     3 Multiple analysis cycles
   255 Missing value

4-191 Reserved, 192-254 Reserved for local use

0'01'092 - Type of ensemble forecast

 C 001092
     0 Unperturbed high-resolution control forecast
     1 Unperturbed low-resolution control forecast
     2 Negatively perturbed forecast
     3 Positively perturbed forecast
   255 Missing value

4-191 Reserved, 192-254 Reserved for local use

0'01'101 - State identifier

 C 001101
   100	Algeria
   101	Angola
   102	Benin
   103	Botswana
   104	Burkina Faso
   105	Burundi
   106	Cameroon
   107	Cape Verde
   108	Central African Republic
   109	Chad
   110	Comoros
   111	Congo
   112	Cote d'Ivoire
   113	Democratic Republic of the Congo
   114	Djibouti
   115	Egypt
   116	Eritrea
   117	Ethiopia
   118	France (RA I)
   119	Gabon
   120	Gambia
   121	Ghana
   122	Guinea
   123	GuineaBissau
   124	Kenya
   125	Lesotho
   126	Liberia
   127	Libyan Arab Jamahiriya
   128	Madagascar
   129	Malawi
   130	Mali
   131	Mauritania
   132	Mauritius
   133	Morocco
   134	Mozambique
   135	Namibia
   136	Niger
   137	Nigeria
   138	Portugal (RA I)
   139	Rwanda
   140	Sao Tom and Prince
   141	Senegal
   142	Seychelles
   143	Sierra Leone
   144	Somalia
   145	South Africa
   146	Spain
   147	Sudan
   148	Swaziland
   149	Togo
   150	Tunisia
   151	Uganda
   152	United Kingdom of Great Britain and Northern Ireland (RA I)
   153	United Republic of Tanzania
   154	Zambia
   155	Zimbabwe
   200	Afghanistan
   201	Bahrain
   202	Bangladesh
   203	Bhutan
   204	Cambodia
   205	China
   206	Democratic People's Republic of Korea
   207	Hong Kong, China
   208	India
   209	Iran, Islamic Republic of
   210	Iraq
   211	Japan
   212	Kazakhstan
   213	Kuwait
   214	Kyrgyz Republic
   215	Lao People's Democratic Republic
   216	Macao, China
   217	Maldives
   218	Mongolia
   219	Myanmar
   220	Nepal
   221	Oman
   222	Pakistan
   223	Qatar
   224	Republic of Korea
   225	Republic of Yemen
   226	Russian Federation (RA II)
   227	Saudi Arabia
   228	Sri Lanka
   229	Tajikistan
   230	Thailand
   231	Turkmenistan
   232	United Arab Emirates
   233	Uzbekistan
   234	Viet Nam, Socialist Republic of
   300	Argentina
   301	Bolivia
   302	Brazil
   303	Chile
   304	Colombia
   305	Ecuador
   306	France
   307	Guyana
   308	Paraguay
   309	Peru
   310	Suriname
   311	Uruguay
   312	Venezuela
   400	Antigua and Barbuda
   401	Bahamas
   402	Barbados
   403	Belize
   404	British Caribbean Territories
   405	Canada
   406	Colombia
   407	Costa Rica
   408	Cuba
   409	Dominica
   410	Dominican Republic
   411	El Salvador
   412	France (RA IV)
   413	Guatemala
   414	Haiti
   415	Honduras
   416	Jamaica
   417	Mexico
   418	Netherlands Antilles and Aruba
   419	Nicaragua
   420	Panama
   421	Saint Lucia
   422	Trinidad and Tobago
   423	United Kingdom of Great Britain and Northern Ireland (RA IV)
   424	United States of America (RA IV)
   425	Venezuela
   500	Australia
   501	Brunei Darussalam
   502	Cook Islands
   503	Fiji
   504	French Polynesia
   505	Indonesia
   506	Kiribati
   507	Malaysia
   508	Micronesia, Federated States of
   509	New Caledonia
   510	New Zealand
   511	Niue
   512	Papua New Guinea
   513	Philippines
   514	Samoa
   515	Singapore
   516	Solomon Islands
   517	Tonga
   518	United Kingdom of Great Britain and Northern Ireland (RA V)
   519	United States of America (RA V)
   520	Vanuatu
   600	Albania
   601	Armenia
   602	Austria
   603	Azerbaijan
   604	Belarus
   605	Belgium
   606	Bosnia and Herzegovina
   607	Bulgaria
   608	Croatia
   609	Cyprus
   610	Czech Republic
   611	Denmark
   612	Estonia
   613	Finland
   614	France (RA VI)
   615	Georgia
   616	Germany
   617	Greece
   618	Hungary
   619	Iceland
   620	Ireland
   621	Israel
   622	Italy
   623	Jordan
   624	Kazakhstan
   625	Latvia
   626	Lebanon
   627	Lithuania
   628	Luxembourg
   629	Malta
   630	Monaco
   631	Montenegro
   632	Netherlands
   633	Norway
   634	Poland
   635	Portugal (RA VI)
   636	Republic of Moldova
   637	Romania
   638	Russian Federation (RA VI)
   639	Serbia
   640	Slovakia
   641	Slovenia
   642	Spain
   643	Sweden
   644	Switzerland
   645	Syrian Arab Republic
   646	The Former Yugoslav Republic of Macedonia
   647	Turkey
   648	Ukraine
   649	United Kingdom of Great Britain and Northern Ireland (RA VI)
  1023	Missing value

0- 99 Reserved 156-199 Reserved for Region I (Africa) 235-299 Reserved for Region II (Asia) 313-399 Reserved for Region III (South America) 426-499 Reserved for Region IV (North America, Central America and the Caribbean) 521-599 Reserved for Region V (SouthWest Pacific) 650-699 Reserved for Region VI (Europe) 700-999 Reserved 1000-1022 Not used

Class 02


0'02'001 - Type of station

 C 002001
     0 Automatic
     1 Manned
     2 Hybrid: both manned and automatic
     3 Missing value

0'02'002 - Type of instrumentation for wind measurement

Type of instrumentation and original units for wind measurement (measured in m/s unless otherwise indicated)

 F 002002
     1 Certified instruments
     2 Originaly measured in knots
     3 Originaly measured in km/h
 All 4 Missing value

0'02'003 - Type of measuring equipment used

 C 002003
     0 Pressure instrument associated with wind measuring equipment
     1 Optical theodolite
     2 Radio theodolite
     3 Radar
     4 VLF-Omega
     5 Loran-C
     6 Wind profiler
     7 Satellite navigation
     8 Radio-Acoustic Sounding System (RASS)
     9 Sodar
    14 Pressure instrument associated with wind measurement equipment but pressure element failed during ascent
    15 Missing value

10-13 Reserved

0'02'004 - Type of instrument for evaporation measurement or type of crop for which evapotranspiration is reported

Instrument or crop type - Type of data

 C 002004
     0 USA open pan evaporimeter (without cover) - Evaporation
     1 USA open pan evaporimeter (mesh covered) - Evaporation
     2 GGI-3000 evaporimeter (sunken) - Evaporation
     3 20 m² tank - Evaporation
     4 Others - Evaporation
     5 Rice - Evapotraspiration
     6 Wheat - Evapotraspiration
     7 Maize - Evapotraspiration
     8 Sorghum - Evapotraspiration
     9 Other crops - Evapotraspiration
    15 Missing value

10-14 Reserved

0'02'011 - Radiosonde type

 C 002011
     0 Reserved
     1 iMet-1-BB (USA)
     2 No radiosonde - passive target (e.g. reflector)
     3 No radiosonde - active target (e.g. transponder)
     4 No radiosonde - passive temperature-humidity profiler
     5 No radiosonde - active temperature-humidity profiler
     6 No radiosonde - radio-acoustic sounder
     7 iMet-1-AB (USA)
     8 No radiosonde - ... (reserved)
     9 No radiosonde - system unknown or not specified
    10 VIZ type A pressure-commutated (USA)
    11 VIZ type B time-commutated (USA)
    12 RS SDC (Space Data Corporation - USA)
    13 Astor (no longer made - Australia)
    14 VIZ MARK I MICROSONDE (USA)
    15 EEC Company type 23 (USA)
    16 Elin (Austria)
    17 GRAW G. (Germany)
    18 Graw DFM-06 (Germany)
    19 GRAW M60 (Germany)
    20 Indian Meteorological Service MK3 (India)
    21 VIZ/Jin Yang Mark I MICROSONDE (South Korea)
    22 Meisei RS2-80 (Japan)
    23 Mesural FMO 1950A (France)
    24 Mesural FMO 1945A (France)
    25 Mesural MH73A (France)
    26 Meteolabor Basora (Switzerland)
    27 AVK-MRZ (Russian Federation)
    28 Meteorit Marz2-1 (Russian Federation)
    29 Meteorit Marz2-2 (Russian Federation)
    30 Oki RS2-80 (Japan)
    31 VIZ/Valcom type A pressure-commutated (Canada)
    32 Shanghai Radio (China)
    33 UK Met Office MK3 (UK)
    34 Vinohrady (Czechoslovakia)
    35 Vaisala RS18 (Finland)
    36 Vaisala RS21 (Finland)
    37 Vaisala RS80 (Finland)
    38 VIZ LOCATE Loran-C (USA)
    39 Sprenger E076 (Germany)
    40 Sprenger E084 (Germany)
    41 Sprenger E085 (Germany)
    42 Sprenger E086 (Germany)
    43 AIR IS - 4A - 1680 (USA)
    44 AIR IS - 4A - 1680 X (USA)
    45 RS MSS (USA)
    46 Air IS - 4A - 403 (USA)
    47 Meisei RS2-91 (Japan)
    48 VALCOM (Canada)
    49 VIZ MARK II (USA)
    50 GRAW DFM-90 (Germany)
    51 VIZ-B2 (USA)
    52 Vaisala RS80-57H
    53 AVK-RF95 (Russian Federation)
    54 GRAW DFM-97 (Germany)
    55 Meisei RS-016 (Japan)
    56 M2K2 (France)
    57 M2K2-DC Modem (France)
    58 AVK-BAR (Russian Federation)
    59 Modem M2K2-R 1680 MHz RDF radiosonde with pressure sensor chip (France)
    60 Vaisala RS80/MicroCora (Finland)
    61 Vaisala RS80/Loran/Digicora I,II or Marwin (Finland)
    62 Vaisala RS80/PCCora (Finland)
    63 Vaisala RS80/Star (Finland)
    64 Orbital Sciences Corporation, Space Data Division, transponder radiosonde, type 909-11-XX, where XX correspond to the model of the instrument (USA)
    65 VIZ transponder radiosonde, model number 1499-520 (USA)
    66 Vaisala RS80/Autosonde (Finland)
    67 Vaisala RS80/Digicora III (Finland)
    68 AVK-RZM-2 (Russian Federation)
    69 MARL-A or Vektor-M-RZM-2 (Russian Federation)
    70 Vaisala RS92/Star (Finland)
    71 Vaisala RS90/Loran/Digicora I,II or Marwin (Finland)
    72 Vaisala RS90/PC-Cora (Finland)
    73 Vaisala RS90/Autosonde (Finland)
    74 Vaisala RS90/Star (Finland)
    75 AVK-MRZ-ARMA (Russian Federation)
    76 AVK-RF95-ARMA (Russian Federation)
    77 GEOLINK GPSonde GL98 (France)
    78 Vaisala RS90/Digicora III (Finland)
    79 Vaisala RS92/Digicora I,II or Marwin (Finland)
    80 Vaisala RS92/Digicora III (Finland)
    81 Vaisala RS92/Autosonde (Finland)
    82 Sippican MK2 GPS/STAR (USA) with rod thermistor, carbon element, and derived pressure
    83 Sippican MK2 GPS/W9000  (USA) with rod thermistor, carbon element, and derived pressure
    84 Sippican MARK II with chip thermistor, carbon element, and derived pressure from GPS height
    85 Sippican MARK IIA with chip thermistor, carbon element, and derived pressure from GPS height
    86 Sippican MARK II with chip thermistor, pressure, and carbon element
    87 Sippican MARK IIA with chip thermistor, pressure, and carbon element
    88 MARL-A or Vektor-M-MRZ (Russian Federation)
    89 MARL-A or Vektor-M-BAR (Russian Federation)
    90 Radiosonde not specified or unknown
    91 Pressure-only radiosonde
    92 Pressure-only radiosonde plus transponder
    93 Pressure-only radiosonde plus radar-reflector
    94 No-pressure radiosonde plus transponder
    95 No-pressure radiosonde plus radar-reflector
    96 Descending radiosonde
    97 BAT-16P (South Africa)
    98 BAT-16G (South Africa)
    99 BAT-4G (South Africa)
   110 Sippican LMS5 w/Chip Thermistor, duct mounted capacitance relative humidity sensor, and derived pressure from GPS height
   111 Sippican LMS6 w/Chip Thermistor, external boom mounted capacitance relative humidity sensor and derived pressure from GPS height
   130 Meisei RS06G (Japan)
   255 Missing value
 
100-109 and 112-129, 131-254 Not assigned (Please consult WMO manual)

Notes:

  1. References to countries in brackets indicate the manufacturing location rather than the country using the instrument.
  2. Some of the radiosondes listed are no longer in use but are retained for archiving purposes.
  3. Please see WMO manual.

0'02'012 - Radiosonde computational method

(To be developed)


0'02'013 - Solar and infrared radiation correction

 C 002013
     0 No correction
     1 CIMO solar corrected and CIMO infrared corrected
     2 CIMO solar corrected and infrared corrected
     3 CIMO solar corrected only
     4 Solar and infrared corrected automatically by radiosonde system
     5 Solar corrected automatically by radiosonde system
     6 Solar and infrared corrected as specified by country
     7 Solar corrected as specified by country
    15 Missing value

8-14 Reserved

0'02'014 - Tracking technique/status of system used

 C 002014
     0 No windfinding
     1 Automatic with auxiliary optical direction finding
     2 Automatic with auxiliary radio direction finding
     3 Automatic with auxiliary ranging
     4 Not used
     5 Automatic with multiple VLF-Omega signals
     6 Automatic cross chain Loran-C
     7 Automatic with auxiliary wind profiler
     8 Automatic satellite navigation
    19 Tracking technique not specified
    20 Vessel stopped
    21 Vessel diverted from original destination
    22 Vessel's arrival delayed
    23 Container damaged
    24 Power failure to container
    29 Other problems
    30 Major power problems
    31 UPS inoperative
    32 Receiver hardware problems
    33 Receiver software problems
    34 Processor hardware problems
    35 Processor software problems
    36 NAVAID system damaged
    37 Shortage of lifting gas
    38 Reserved
    39 Other problems
    40 Mechanical defect
    41 Material defect (hand launcher)
    42 Power failure
    43 Control failure
    44 Pneumatic/hydraulic failure
    45 Other problems
    46 Compressor problems
    47 Balloon problems
    48 Balloon release problems
    49 Launcher damaged
    50 R/S receiver antenna defect
    51 NAVAID antenna defect
    52 R/S receiver cabling (antenna) defect
    53 NAVAID antenna cabling defect
    59 Other problems
    60 ASAP communications defect
    61 Communications facility rejected data
    62 No power at transmitting antenna
    63 Antenna cable broken
    64 Antenna cable defect
    65 Message transmitted power below normal
    69 Other problems
    70 All systems in normal operation
    99 Status of system and its components not specified
   127 Missing value
 
25-28 Reserved for future use 9-18, 54-58, 66-68, 71-98, 100-126 Reserved

0'02'015 - Radiosonde completeness

 C 002015
     0 Reserved
     1 Pressure only radiosonde
     2 Pressure only radiosonde plus transponder
     3 Pressure only radiosonde plus radar reflector
     4 No-pressure radiosonde plus transponder
     5 No-pressure radiosonde plus radar reflector
    15 Missing value

6-14 Reserved

0'02'016 - Radiosonde configuration

 F 002016
     1 Train regulator
     2 Light unit
     3 Parachute
     4 Rooftop release
 All 5 Missing value

0'02'019 - Satellite instruments

Agency - Type - Instrument short name (for Instrument long name please consult WMO manual)

 C 002019
    10 BNSC      Radiometer          AATSR
    11 BNSC      Radiometer          ATSR
    12 BNSC      Radiometer          ATSR-2
    13 BNSC      Radiometer          MWR
    30 CNES      Communications      ARGOS
    40 CNES      Lidar               Laser reflectors
    41 CNES      Lidar               DORIS
    42 CNES      Lidar               DORIS-NG
    47 CNES      Radar altimeters    POSEIDON-1 (SSALT-1)
    48 CNES      Radar altimeters    POSEIDON-2 (SSALT-2)
    50 CNES      Imager radiometer   ATSR/M
    51 CNES      High resolution optical imagers - HRG
    52 CNES      Radiometer          HRV
    53 CNES      Radiometer          HRVIR
    54 CNES      Radiometer          ScaRaB/MV2
    55 CNES      Radiometer          POLDER
    60 CNES      Spectrometer        VEGETATION
    61 CNES      Spectrometer        WINDII
    80 CSA       Communications      RADARSAT DTT
    81 CSA       Communications      RADARSAT TTC
    85 CSA       Radar               SAR (CSA)
    90 CSA       Radiometer          MOPITT
    91 CSA       Chemistry Instruments  OSIRIS
    97 CSIRO     Radiometer          Panchromatic imager
    98 CRCSS     Atmospheric temperature and humidity sounders - GPS receiver
   102 DLR       Radiometer          CHAMP GPS Sounder
   103 DLR       Radiometer          IGOR
   116 DLR       Magnetometer        CHAMP gravity package (Accelerometer+GPS)
   117 DLR       Magnetometer        CHAMP magnetometry package (1 Scalar+2 Vector Magnetometer)
   120 ESA       Communications      ENVISAT Comms
   121 ESA       Communications      ERS Comms
   130 ESA       Lidars              ALADIN
   131 ESA       Lidars              ATLID
   140 ESA       Radar               AMI/SAR/Image
   141 ESA       Radar               AMI/SAR/wave
   142 ESA       Radar               AMI/scatterometer
   143 ESA       Radar               ASAR
   144 ESA       Imaging microwave radars  ASAR
   145 ESA       Imaging microwave radars  ASAR
   146 ESA       Cloud profile and rain radars - CPR
   147 ESA       Radar               RA-2/MWR
   148 ESA       Radar               RA/MWR
   150 ESA       Scatterometers      SCATTEROMETER
   161 ESA       Radiometer          MIPAS
   162 ESA       Imagin multi-spectral radiometers (passive microwave) - MWR-2
   163 ESA       Atmospheric chemistry instruments  SOPRANO
   170 ESA       Atmospheric chemistry instruments  GOME I
   172 ESA       Spectrometer        GOMOS
   174 ESA       Spectrometer        MERIS
   175 ESA       Spectrometer        SCIAMACHY
   176 ESA       Radiometer          MIRAS
   181 EUMETSAT  Communications      METEOSAT Comms
   182 EUMETSAT  Communications      MSG Comms
   190 ESA/EUMETSAT - Scatterometers ASCAT
   200 EUMETSAT  Radiometer          GERB
   202 EUMETSAT  Radiometer          GRAS
   203 EUMETSAT  Radiometer          MHS
   205 EUMETSAT  Radiometer          MVIRI
   207 EUMETSAT  Radiometer          SEVIRI
   208 EUMETSAT  Imaging multi-spectral radiometers (vis/IR) - VIRI
   220 ESA/EUMETSAT  Spectrometer        GOME-2
   221 CNES/EUMETSAT  Atmospheric temp and hum sounders - IASI
   240 CAST      Communications      DCP
   245 CAST      Radiometer          CCD
   246 INPE      Radiometer-sounders HSB
   248 INPE      Imaging multi-spectral radiometers (vis/IR) - OBA
   250 CAST      Radiometer          WFI
   255 CAST      Spectrometer        IRMSS
   260 ISRO      Precision orbit     BSS & FSS transponders
   261 ISRO      Precision orbit     DRT-S & R
   262 ISRO      Communications      INSAT Comms
   268 ISRO      High resolution optical imagers - HR-PAN
   269 ISRO      Imaging multi-spectral radiometers (passive microwave) - MSMR
   270 ISRO      Imaging multi-spectral radiometers (vis/IR) - VHRR
   271 ISRO      Imaging multi-spectral radiometers (vis/IR) - WiFS
   275 ISRO      High resolution optical imagers - AWiFS
   276 ISRO      High resolution optical imagers - LISS-I
   277 ISRO      High resolution optical imagers - LISS-II
   278 ISRO      High resolution optical imagers - LISS-III
   279 ISRO      High resolution optical imagers - LISS-IV
   284 ISRO      High resolution optical imagers - PAN
   285 ISRO      Imaging multi-spectral radiometers (vis/IR) - MOS
   286 ISRO      Ocean colour instruments - OCM
   290 JMA       Communications      MTSAT Comms
   294 JMA       Imaging multi-spectral radiometers - IMAGER/MTSAT-1R
   295 JMA       Imaging multi-spectral radiometers - IMAGER/MTSAT
   296 JMA       Imaging multi-spectral radiometers - VISSR (GMS4)
   300 NASA      Lidars              GLAS
   301 NASA      Precision orbit     LRA
   302 NASA      Lidar               MBLA
   309 NASA      Cloud profile and rain radars - CPR (Cloudsat)
   312 NASA      Radar               NSCAT
   313 NASA      Radar               SeaWinds
   330 NASA      Earth radiation budget radiometer - ACRIM
   334 NASA      Total and Profile ozone - BUV
   336 NASA      High resolution optical imagers - ALI
   347 NASA      High resolution optical imagers - ASTER
   348 NASA      Earth radiation budget radiometer - CERES-2
   351 NASA      Atmospheric temperature and humidity sounders - GPSDR
   353 NASA      Total and Profile ozone - HiRDLS
   354 NASA      Total and Profile ozone - HRDI
   356 NASA      Radiometer          LIS
   358 NASA      Magnetic field, Auroal imageryScintillation boundary - PEM
   359 NASA      Ocean colour instruments - SeaWiFS
   360 NASA      Earth radiation budget radiometer - SUSIM (UARS)
   363 NASA      Total and Profile ozone - SBUV/1
   365 NASA      Imaging multi-spectral radiometers (passive microwave) - TMI
   366 NASA      Imaging multi-spectral radiometers (passive microwave) - JMR
   369 NASA      Total and Profile ozone - LIMS
   370 NASA      Total and Profile ozone - LRIR
   371 NASA      Total and Profile ozone - EPIC
   372 NASA      Earth radiation budget radiometer - NISTAR
   373 NASA      Magnetic field, Auroal imagery Scintillation boundary - Plasma-Mag
   374 NASA      Other               XPS
   375 NASA      Imaging multi-spectral radiometers (vis/IR) - VIRS
   376 CNES      Multiple direction/polarisation radiometers - POLDER II
   377 NASA      Earth radiation budget radiometer - TIM
   379 NASA      Imaging multi-spectral radiometers (vis/IR) - WFC
   382 NASA      Spectro-radiometer  CLAES
   383 NASA      Spectro-radiometer  HALOE
   384 NASA      Spectro-radiometer  ISAMS
   385 NASA      Spectro-radiometer  MISR
   386 NASA      Spectro-radiometer  MLS
   387 NASA      Spectro-radiometer  MLS (EOS-Aura)
   389 NASA      Spectro-radiometer  MODIS
   393 NASA      Gravity             HAIRS
   394 NASA      Total and Profile ozone - OMI
   395 NASA      Radiometer          Atmospheric Corrector
   396 NASA      Radiometer          Hyperion
   399 NASA      Spectro-radiometer  SAGE I
   400 NASA      Spectro-radiometer  SAGE II
   401 NASA      Spectro-radiometer  SAGE III
   402 NASA      Spectro-radiometer  SAMS
   403 NASA      Spectro-radiometer  SAM II
   404 NASA      Spectro-radiometer  IRIS
   405 NASA      Atmospheric temperature and humidity sounders - GIFTS
   420 NASA      Spectrometer        AIRS
   426 NASA      Spectrometer        SOLSTICE
   430 NASA      Spectrometer        TES
   431 NASA      Spectrometer        TOMS
   450 JAXA      Communications      ADEOS Comms
   451 JAXA      Communications      DCS (JAXA)
   453 JAXA      Communications      GMS Comms
   454 JAXA      Communications      JERS-1 Comms
   460 JAXA      Lidar               RIS
   461 JAXA      Radar               PR
   462 JAXA      Imaging microwave radars - SAR
   470 JAXA      Imaging microwave radars - PALSAR
   479 JAXA      Imaging multi-spectral radiometers (passive microwave) - AMSR-E
   480 JAXA      High resolution optical imagers - PRISM (ALOS)
   481 JAXA      Radiometer          AMSR
   482 JAXA      High resolution optical imagers - AVNIR
   483 JAXA      High resolution optical imagers - AVNIR-2
   484 JAXA      Imager              GLI
   485 JAXA      Radiometer          MESSR
   486 JAXA      Radiometer          MSR
   487 JAXA      Radiometer          OCTS
   488 JAXA      Radiometer          OPS
   489 JAXA      Spectro-radiometer  VISSR (GMS5)
   490 JAXA      Radiometer          VTIR
   510 JAXA      Spectrometer        ILAS-I
   511 JAXA      Spectrometer        ILAS-II
   512 JAXA      Spectrometer        IMG
   514 JAXA      Space environment   SEM
   515 JAXA      Total and Profile ozone - SOFIS
   516 JAXA      Spectrometer        TANSOFTS
   517 JAXA      Imager              TANSOCAI
   540 NOAA      Communications      DCS (NOAA)
   541 NOAA      Communications      GOES Comms
   542 NOAA      Communications      LANDSAT Comms
   543 NOAA      Communications      NOAA Comms
   544 NOAA      Communications      S & R (GOES)
   545 NOAA      Communications      S & R (NOAA)
   546 NOAA      Communications      WEFAX
   547 NOAA      Spectrometer        SEM(GOES)
   550 NOAA      Magnetic field      SSM
   551 NOAA      Magnetic field      SSJ/4
   552 NOAA      Space environment   SSIES-2
   553 NOAA      Space environment   SSB/X-2
   570 NOAA      Radiometer          AMSU-A
   574 NOAA      Radiometer          AMSU-B
   580 NOAA      Radiometer          ATOVS (HIRS/3 + AMSU + AVHRR/3)
   590 NOAA      Radiometer          AVHRR/2
   591 NOAA      Radiometer          AVHRR/3
   592 NOAA      Radiometer          AVHRR/4
   600 NOAA      Radiometer          ERBE
   601 NOAA      Radiometer          ETM+
   605 NOAA      Radiometer          HIRS/2
   606 NOAA      Radiometer          HIRS/3
   607 NOAA      Radiometer          HIRS/4
   615 NOAA      Radiometer          IMAGER
   616 NOAA      Imaging multi-spectral radiometers (vis/IR) - VIIRS
   620 NOAA      Atmospheric temperature and humidity sounders - CrIRS/NP
   621 NOAA      Atmospheric temperature and humidity sounders - ATMS
   622 NOAA      Radiometer          MSS
   623 NOAA      Radiometer          MSU
   624 NOAA      Radiometer          SBUV/2
   625 NOAA      Radiometer          SBUV/3
   626 NOAA      Radiometer          SOUNDER
   627 NOAA      Radiometer          SSU
   628 NOAA      Radiometer          TM
   629 NOAA      Radiometer          TOVS (HIRS/2 + MSU + SSU)
   630 NOAA      Radiometer          VAS
   631 NOAA      Radiometer          SSZ
   645 NOAA      Spectrometer        SEM
   650 NRSCC     Radiometer          MVIRSR (10 channel)
   651 NRSCC     Radiometer          MVIRSR (3 channel)
   652 NRSCC     Radiometer          MVIRSR (5 channel)
   670 NSAU      Radar               RLSBO
   680 NSAU      High resolution optical imagers - MSU-EU
   681 NSAU      Imaging multi-spectral radiometers (vis/IR) - MSU-UM
   682 NSAU      Radiometer          RM-08
   683 NSAU      High resolution optical imagers - SU-UMS
   684 NSAU      High resolution optical imagers - SU-VR
   685 NSAU      Radiometer          TRASSER
   700 ROSCOSMOS Communications      KONDOR-2
   701 ROSCOSMOS Communications      BRK
   710 ROSCOSMOS Lidar               ALISSA
   712 ROSCOSMOS Lidar               Balkan-2 lidar
   715 ROSCOSMOS Lidar               MK-4
   716 ROSCOSMOS Lidar               MK-4M
   730 ROSCOSMOS Radar               Greben
   731 ROSCOSMOS Radar               SAR-10
   732 ROSCOSMOS Radar               SAR-3
   733 ROSCOSMOS Radar               SAR-70
   740 ROSCOSMOS Radar               SLR-3
   745 ROSCOSMOS Radar               Travers SAR
   750 ROSCOSMOS Radiometer          174-K
   751 ROSCOSMOS Radiometer          BTVK
   752 ROSCOSMOS Radiometer          Chaika
   753 ROSCOSMOS Radiometer          DELTA-2
   755 ROSCOSMOS Radiometer          IKAR-D
   756 ROSCOSMOS Radiometer          IKAR-N
   757 ROSCOSMOS Radiometer          IKAR-P
   760 ROSCOSMOS Radiometer          ISP
   761 ROSCOSMOS Radiometer          KFA-1000
   762 ROSCOSMOS Radiometer          KFA-200
   763 ROSCOSMOS Radiometer          KFA-3000
   770 ROSCOSMOS Radiometer          Klimat
   771 ROSCOSMOS Radiometer          Klimat-2
   775 ROSCOSMOS Radiometer          MIRAS
   776 ROSCOSMOS Radiometer          MIVZA
   777 ROSCOSMOS Radiometer          MIVZA-M
   780 ROSCOSMOS Radiometer          MR-2000
   781 ROSCOSMOS Radiometer          MR-2000M
   785 ROSCOSMOS Radiometer          MR-900
   786 ROSCOSMOS Radiometer          MR-900B
   790 ROSCOSMOS Radiometer          MSU-E
   791 ROSCOSMOS Radiometer          MSU-E1
   792 ROSCOSMOS Radiometer          MSU-E2
   793 ROSCOSMOS Radiometer          MSU-M
   794 ROSCOSMOS Radiometer          MSU-S
   795 ROSCOSMOS Radiometer          MSU-SK
   796 ROSCOSMOS Radiometer          MSU-V
   810 ROSCOSMOS Radiometer          MTZA
   815 ROSCOSMOS Imaging multi-spectral radiometers (passive microwave) - MZOAS
   820 ROSCOSMOS Imaging multi-spectral radiometers (passive microwave) - R-225
   821 ROSCOSMOS Radiometer          R-400
   822 ROSCOSMOS Radiometer          R-600
   830 ROSCOSMOS Radiometer          RMS
   835 ROSCOSMOS Radiometer          TV camera
   836 ROSCOSMOS Radiometer          SILVA
   840 ROSCOSMOS Spectro-radiometer  SROSMO
   850 ROSCOSMOS Spectrometer        BUFS-2
   851 ROSCOSMOS Spectrometer        BUFS-4
   855 ROSCOSMOS Spectrometer        ISTOK-1
   856 ROSCOSMOS Spectrometer        SFM-2
   857 ROSCOSMOS Spectrometer        DOPI
   858 ROSCOSMOS Spectrometer        KGI-4
   859 ROSCOSMOS Spectrometer        Ozon-M
   860 ROSCOSMOS Spectrometer        RMK-2
   900 NOAA      Radiometer          MAXIE
   901 NOAA      Radiometer          OLS
   905 NOAA      Radiometer          SSM/I
   906 NOAA      Radiometer          SSM/T-1
   907 NOAA      Radiometer          SSM/T-2
   908 NOAA      Radiometer          SSMIS
   910 NOAA      Radiometer          SXI
   930 NOAA      Spectrometer        EHIC
   931 NOAA      Spectrometer        X-ray astronomy payload
   932 NRSCC     Imaging multi-spectral radiometers (vis/IR) - IVISSR (FY-2)
   933 NRSCC     Atmospheric temperature and humidity sounders - IRAS
   934 NRSCC     Atmospheric temperature and humidity sounders - MWAS
   935 NRSCC     Atmospheric temperature and humidity sounders - IMWAS
   936 NRSCC     Atmospheric temperature and humidity sounders - MWHS
   937 NRSCC     Imaging multi-spectral radiometers (vis/IR) - MVIRS
   938 NRSCC     Imaging multi-spectral radiometers (passive microwave) - MWRI
   940 ROSCOSMOS Atmospheric temperature and humidity sounders - MTVZA-OK
   941 CNES      Atmospheric temperature and humidity sounders - SAPHIR
   944 NOAA      Radar altimeters - ALT
   945 NOAA      Earth radiation budget radiometer - TSIS
   946 NOAA      Imaging multi-spectral radiometers (passive microwave) - CMIS
   947 NOAA      Total and Profile ozone - OMPS
   948 NOAA      Space Environment Atmospheric temperature and humidity sounders - GPSOS
   949 NOAA      Magnetic field, Auroal imagery Scintillation boundary - SESS
   950 NRSCC     Imaging multi-spectral radiometers (vis/IR) - VIRR
   951 NRSCC     Total and Profile ozone - TOM
   952 NRSCC     Total and Profile ozone - OP
  2047 Missing value
 
953-999 Reserved 1000-2046 Reserved for long-term future use

0'02'020 - Satellite classification

 C 002020
     0 Nimbus
     1 VTPR
     2 Tiros 1 (Tiros, NOAA-6 to NOAA-13)
     3 Tiros 2 (NOAA-14 onwards)
    10 EOS
    31 DMSP
    61 EUMETSAT Polar System (EPS)
    91 ERS
   121 ADEOS
   241 GOES
   261 JASON
   271 GMS
   272 MTSAT
   301 INSAT
   331 METEOSAT Operational Programme (MOP)
   332 METEOSAT Transitional Programme (MTP)
   333 METEOSAT Second Generation Programme (MSG)
   351 GOMS
   380 FY-1
   381 FY-2
   401 GPS
   402 GLONASS
   403 GALILEO
   511 Missing value

382-400 Reserved, 404-510 Reserved

0'02'021 - Satellite instrument data used in processing

 F 002021
     1 High resolution infra red sounder (HIRS)
     2 Microwave sounding unit (MSU)
     3 Stratospheric sounding unit (SSU)
     4 AMI wind mode
     5 AMI wave mode
     6 AMI image mode
     7 RADAR altimeter
     8 ATSR
 All 9 Missing value

0'02'022 - Satellite data-processing technique used

Bit flags denoting the elements included in processing sounding data.

 F 002022
     1 Processing technique not defined
     2 Automated statistical regression
     3 Clear path
     4 Partly cloudy path
     5 Cloudy path
     6 Reserved
     7 Reserved
 All 8 Missing value

Notes:

  1. Clear path means the sounding has been generated from clear radiances derived from actual clear spot measurements. Tropospheric and stratospheric HIRS data, as well as MSU and SSU data, have been used.
  2. Partly cloudy path means the sounding has been generated from clear radiances which have been calculated from partly cloudy spots. Tropospheric and stratospheric HIRS data, as well as MSU and SSU data, have been used.
  3. Cloudy path means the sounding has been generated only from stratospheric HIRS data, MSU data and SSU data. Tropospheric HIRS data have not been used because of cloudy conditions.

0'02'023 - Satellite derived wind computation method

 C 002023
     0 Reserved
     1 Wind derived from cloud motion observed in the infrared channel
     2 Wind derived from cloud motion observed in the visible channel
     3 Wind derived from cloud motion observed in the water vapour channel
     4 Wind derived from motion observed in a combination of spectral channels
     5 Wind derived from motion observed in the water vapour channel in clear air
     6 Wind derived from motion observed in the ozone channel
     7 Wind derived from cloud motion observed in water vapour channel (cloud or clear air not specified)
    13 Root mean square
    15 Missing value

8-12, 14 Reserved

0'02'024 - Integrated mean humidity computational method

 C 002024
     0 Reserved
     1 Table with full range of humidity variation in layer
     2 Regression technique on 2 humidity values in layer
    15 Missing value

3-14 Reserved

0'02'025 - Satellite channel(s) used in computation

 F 002025
     1 Reserved
     2 HIRS - Group 1
     3 MSU - Group 1
     4 Reserved
     5 Reserved
     6 HIRS - Group 2
     7 MSU - Group 2
     8 Reserved
     9 Reserved
    10 HIRS (1, 2, 3, 8, 9, 16, 17) - Group 3
    11 HIRS (1, 2, 3, 9, 17) - Group 3
    12 MSU - Group 3
    13 Reserved
    14 Reserved
    15 HIRS - Group 4
    16 HIRS* - Group 4
    17 MSU - Group 4
    18 SKINTK (ocean only) - Group 4
    19 Reserved
    20 Reserved
    21 HIRS* - Group 5
    22 SSU - Group 5
    23 MSU (3, 4) - Group 5
    24 Reserved
All 25 Missing value

Notes:

  1. HIRS* is equivalent to: HIRS channels 1 (669 cm-1), 2 (679 cm-1), 3 (690 cm-1) and 4 (2358 cm-1).

0'02'030 - Method of current measurement

 C 002030
     0 Reserved
     1 ADCP (Acoustic Doppler Current Profiler)(*)
     2 GEK (Geomagnetic EloctroKinetograph)
     3 Ship's set and drift determined by fixes 3-6 hours apart
     4 Ship's set and drift determined by fixes more than 6 hours but less than 12 hours apart
     5 Drift of buoy
     6 ADCP (Acoustic Doppler Current Profiler)
     7 Missing value

Note: (*) Value deprecated. Code figure 6 should be used instead.


0'02'031 - Duration and time of current measurement

 C 002031
     0 Reserved
     1 Instantaneous - between H-1 and H
     2 Averaged over 3 minutes or less - between H-1 and H
     3 Averaged over more than 3 minutes, but 6 at the most - between H-1 and H
     4 Averaged over more than 6 minutes, but 12 at the most - between H-1 and H
     5 Instantaneous - between H-2 and H-1
     6 Averaged over 3 minutes or less - between H-2 and H-1
     7 Averaged over more than 3 minutes, but 6 at the most - between H-2 and H-1
     8 Averaged over more than 6 minutes, but 12 at the most - between H-2 and H-1
     9 Vector or Doppler current profiling method not used
    10 Reserved
    11 1 Hour or less
    12 More than 1 hour but 2 at the most
    13 More than 2 hours but 4 at the most
    14 More than 4 hours but 8 at the most
    15 More than 8 hours but 12 at the most
    16 More than 12 hours but 18 at the most
    17 More than 18 hours but 24 at the most
    18 Reserved
    19 Drift method not used
    31 Missing

20-30 Reserved

Notes:

  1. Code figures 1-9: Duration and time of current measurement (vector or Doppler current profiling method).
  2. Code figures 11-19: Period of current measurement (drift method).
  3. H = Time of observation.

0'02'032 - Indicator for digitization

 C 002032
     0 Values at selected depths (data points fixed by the instrument or selected by any other method)
     1 Values at selected depths (data points taken from traces at significant depths)
     2 Reserved
     3 Missing value

0'02'033 - Method of salinity/depth measurement

 C 002033
     0 No salinity measured
     1 In situ sensor, accuracy better than 0.02 per thousand
     2 In situ sensor, accuracy less than 0.02 per thousand
     3 Sample analysis
     7 Missing value

4-6 Reserved

0'02'034 - Drogue type

 C 002034
     0 Unspecified drogue
     1 Holey sock
     2 TRISTAR
     3 Window shade
     4 Parachute
     5 Non-Lagrangian sea anchor
    31 Missing value

6-30 Reserved (to be developed)

0'02'036 - Buoy type

 C 002036
     0 Drifting buoy
     1 Fixed buoy
     2 Sub-surface float (moving)
     3 Missing value

0'02'037 - Method of tidal observation

 C 002037
     0 Reserved
     1 Manual reading from vertical tide staff
     2 Manual reading from single automatic recorder at station
     3 Manual reading from multiple automatic recorders at station
     4 Automatic reading from single automatic recorder at station without level reference check
     5 Automatic reading from single automatic recorder at station with level reference check, or from multiple automatic recorders
     6 Reserved
     7 Missing

0'02'038 - Method of water temperature and/or salinity measurement

 C 002038
     0 Ship intake
     1 Bucket
     2 Hull contact sensor
     3 Reversing thermometer
     4 STD/CTD sencor
     5 Mechanical BT
     6 Expendable BT
     7 Digital BT
     8 Thermistor Chain
     9 Infrared scanner
    10 Microwave scanner
    11 Infrared radiometer
    12 In line thermosalinograph
    13 Towed body
    14 Other
    15 Missing value

0'02'039 - Method of wet-bulb temperature measurement

 C 002039
     0 Measured wet-bulb temperature
     1 Iced bulb measured wet-bulb temperature
     2 Computed wet-bulb temperature
     3 Iced bulb computed wet-bulb temperature
     7 Missing value

4-6 Reserved

0'02'040 - Method of removing velocity and motion of platform from current

 C 002040
     0 Ship's motion removed by averaging - Ship's velocity removed by bottom tracking
     1 Ship's motion removed by motion compensation - Ship's velocity removed by bottom tracking
     2 Ship's motion not removed - Ship's velocity removed by bottom tracking
     3 Ship's motion removed by averaging - Ship's velocity removed by navigation
     4 Ship's motion removed by motion compensation - Ship's velocity removed by navigation
     5 Ship's motion not removed - Ship's velocity removed by navigation
     6 Doppler current profiling method not used
    15 Missing value

7-14 Reserved

0'02'041 - Method for estimating reports related to synoptic features

 C 002041
     0 Information based on manual analysis
     1 Information based on computer analysis
     2 Information based on data assimilation
     3 Information based on computer analysis or data assimilation manually modified
    10 Information based on the numerical weather prediction
    63 Missing value
 
4-9 Reserved 11-62 Reserved for future use

0'02'042 - Indicator for sea surface current speed

 C 002042
     0 Value originally reported in m/s
     1 Value originally reported in knots
     2 No sea current data available
     3 Missing value

0'02'044 - Indicator for method of calculation of spectral wave data

 C 002044
     0 Reserved for future use
     1 Longuet-Higgins (1964)
     2 Longuet-Higgins (F3 method)
     3 Maximum likelihood method
     4 Maximum entropy method
    15 Missing value

5-14 Reserved

0'02'045 - Indicator for type of platform

 C 002045
     0 Sea station
     1 Automatic data buoy
     2 Aircraft
     3 Satellite
    15 Missing value

4-14 Reserved

0'02'046 - Wave measurement instrumentation

 C 002046
     0 Reserved for future use
     1 Heave sensor
     2 Slope sensor
    15 Missing value

3-14 Reserved

0'02'047 - Deep-ocean tsunameter type

 C 002047
     0 Reserved
     1 DART II (PMEL)
     2 DART ETD
     3 SAIC Tsunami Buoy (STB)
     4 GFZ - Potsdam
     5 INCOIS (India)
     6 InaBuoy (Indonesia)
    15 Missing value

7-14 Reserved

0'02'048 - Satellite sensor indicator

 C 002048
     0 HIRS
     1 MSU
     2 SSU
     3 AMSU-A
     4 AMSU-B
     5 AVHRR
     6 SSMI
     7 NSCAT
     8 SEAWINDS
     9 POSEIDON altimeter
    10 JMR (Jason Microwave Radiometer)
    11 MHS
    12 ASCAT
    15 Missing value

13-14 Reserved

0'02'049 - Geostationary satellite data-processing technique used

 F 002049
     1 Processing technique not defined
     2 Simultaneous physical retrieval
     3 Clear sounding
     4 Cloudy sounding
 All 8 Missing value
 
5-7 Reserved for future use

Notes:

  1. Clear sounding indicates the sounding has been generated from a set of clear radiances using all available sounder radiances.
  2. Cloudy sounding indicates that sufficient clear radiances could not be identified in the sounding area. The sounding is calculated from the cloud top (cloud pressure greater than or equal to 780 hPa) upwards.

0'02'050 - Geostationary sounder satellite channels used

Bit.No. - Channel - Central wavelength (micrometers)

 F 002050
     1 1  - 14.71
     2 2  - 14.37
     3 3  - 14.06
     4 4  - 13.64
     5 5  - 13.37
     6 6  - 12.66
     7 7  - 12.02
     8 8  - 11.03
     9 9  -  9.71
    10 10 -  7.43
    11 11 -  7.02
    12 12 -  6.51
    13 13 -  4.57
    14 14 -  4.52
    15 15 -  4.45
    16 16 -  4.13
    17 17 -  3.98
    18 18 -  3.74
    19 19 -  0.969
All 20 Missing value

Notes:

  1. Beginning with the first bit position (high order bit), if the bit position is set to one, then the channel is used. If the bit position is set to zero, then the channel is not used.

0'02'051 - Indicator to specify observing method for extreme temperatures

 C 002051
     0 Reserved
     1 Maximum/minimum thermometers
     2 Automated instruments
     3 Thermograph
    15 Missing value

4-14 Reserved

0'02'052 - Geostationary imager satellite channels used

Bit.No. - Channel - Central wavelength (micrometers)

 F 002052
     1 1 - 0.55-0.75
     2 2 - 3.9
     3 3 - 6.7
     4 4 - 10.7
     5 5 - 12.0
 All 6 Missing value

Note:

  1. Beginning with the first bit position (high order bit), if the bit position is set to one, then the channel is used. If the bit position is set to zero, then the channel is not used.

0'02'053 - GOES-I/M brightness temperature characteristics

 C 002053
     0 Observed brightness temperature
     1 Brightness temperature with bias correction applied
     2 Brightness temperature calculated from first guess
     3 Brightness temperature calculated from sounding
    15 Missing value

4-14 Reserved

0'02'054 - GOES-I/M soundings parameter characteristics

 C 002054
     0 Parameter derived using observed sounder brightness temperatures
     1 Parameter derived using observed imager brightness temperatures
     2 Parameter derived using first guess information
     3 Parameter derived using NMC analysis information
     4 Parameter derived using radiosonde information
    15 Missing value

5-14 Reserved

0'02'055 - Geostationary soundings statistical parameters

 C 002055
     0 Statistics generated comparing retrieval versus radiosonde
     1 Statistics generated comparing retrieval versus first guess
     2 Statistics generated comparing radiosonde versus first guess
     3 Statistics generated comparing observed versus retrieval
     4 Statistics generated comparing observed versus first guess
     5 Statistics generated comparing radiosonde versus imager
     6 Statistics generated comparing radiosonder versus sounder
     7 Statistics generated for radiosonde
     8 Statistics generated for first guess
    15 Missing value

9-14 Reserved

0'02'056 - Geostationary soundings accuracy statistics

 C 002056
     0 Sums of differences
     1 Sums of squared differences
     2 Sample size
     3 Minimum difference
     4 Maximum difference
    15 Missing value

5-14 Reserved

0'02'057 - Origin of first-guess information for GOES-I/M sounding

 C 002057
     0 Nested Grid Model (NGM)
     1 Aviation Model (AVN)
     2 Medium Range Forecast (MRF) Model
     3 Global Data Assimilation System (GDAS) Forecast Model
     4 Prior soundings (within 3 hours of current time)
     5 Climatology
    15 Missing value

6-14 Reserved

0'02'058 - Valid times of first-guess information for GOES-I/M soundings

 C 002058
     0 12 hour and 18 hour
     1 18 hour and 24 hour
     2  6 hour and 12 hour
     3 Greater than 24 hours
    15 Missing value

4-14 Reserved

0'02'059 - Origin of analysis information for GOES-I/M soundings

 C 002059
     0 NCEP Nested Grid Model (NGM) Analysis
     1 NCEP Aviation Model (AVN) Analysis
     2 NCEP Medium Range Forecast (MRF) Model Analysis
     3 NCEP Global Data Assimilation System (GDAS) Forecast Model Analysis
    15 Missing value

4-14 Reserved

0'02'060 - Origin of surface information for GOES-I/M soundings

 C 002060
     0 Current surface hourly reports
     1 Current ship reports
     2 Current buoy reports
     3 One hour old surface hourly reports
     4 One hour old ship reports
     5 One hour old buoy reports
    15 Missing value

6-14 Reserved

0'02'061 - Aircraft navigational system

 C 002061
     0 Inertial navigation system
     1 OMEGA
     7 Missing value

2-6 Reserved

0'02'062 - Type of aircraft data relay system

 C 002062
     0 ASDAR
     1 ASDAR (ACARS also available but not operative)
     2 ASDAR (ACARS also available and operative)
     3 ACARS
     4 ACARS (ASDAR also available but not operative)
     5 ACARS (ASDAR also available and operative)
    15 Missing value

6-14 Reserved

0'02'064 - Aircraft roll angle quality

 C 002064
     0 Good
     1 Bad
     2 Reserved
     3 Missing value

Note: Bad is currently defined as a roll angle > 5 degrees from vertical.


0'02'066 - Radiosonde ground receiving system

 C 002066
     0 TRS 2000
     1 IMS 1500C
    62 Other
    63 Missing value

2-61 Reserved

0'02'070 - Original specification of latitude/longitude

 C 002070
     0 Actual location in seconds
     1 Actual location in minutes
     2 Actual location in degrees
     3 Actual location in decidegrees
     4 Actual location in centidegrees
     5 Referenced to checkpoint in seconds
     6 Referenced to checkpoint in minutes
     7 Referenced to checkpoint in degrees
     8 Referenced to checkpoint in decidegrees
     9 Referenced to checkpoint in centidegrees
    10 Actual Location in tenths of a minute
    11 Referenced to checkpoint in tenths of a minute
    15 Missing value

12-14 Reserved

0'02'080 - Balloon manufacturer

 C 002080
     0 Kaysam
     1 Totex
     2 KKS
    62 Other
    63 Missing value

3-61 Reserved

0'02'081 - Type of balloon

 C 002081
     0 GP26
     1 GP28
     2 GP30
     3 HM26
     4 HM28
     5 HM30
     6 SV16
    30 Other
    31 Missing value

7-29 Reserved

0'02'083 - Type of balloon shelter

 C 002083
     0 High bay
     1 Low bay
     2 Balloon inflation Launch System (BILS)
     3 Roof-top BILS
    14 Other
    15 Missing value

4-13 Reserved

0'02'084 - Type of gas used in balloon

 C 002084
     0 Hydrogen
     1 Helium
     2 Natural Gas
    14 Other
    15 Missing value

3-13 Reserved

0'02'095 - Type of pressure sensor

 C 002095
     0 Capacitance aneroid
     1 Derived from GPS
     2 Resistive strain gauge
    30 Other
    31 Missing value

3-29 Reserved

0'02'096 - Type of temperature sensor

 C 002096
     0 Rod thermistor
     1 Bead thermistor
     2 Capacitance bead
    30 Other
    31 Missing value

3-29 Reserved

0'02'097 - Type of humidity sensor

 C 002097
     0 VIZ Mark II Carbon Hygristor
     1 VIZ B2 Hygristor
     2 Vaisala A-Humicap
     3 Vaisala H-Humicap
     4 Capacitance sensor
     5 Vaisala RS90
     6 Sippican Mark IIA Carbon Hygristor
    30 Other
    31 Missing value

7-29 Reserved

0'02'099 - Polarisation

 C 002099
     0	HH polarisation
     1	VV polarisation
     2	HV polarisation real valued component
     3	HV polarisation imaginary valued component
     7	Missing value

4-6 Reserved

0'02'101 - Type of antenna

 C 002101
     0 Centre front-fed paraboloid
     1 Offset front-fed paraboloid
     2 Centre Cassegrain paraboloid
     3 Offset Cassegrain paraboloid
     4 Planar array
     5 Coaxial-collinear array
     6 Yagi elements array
     7 Microstrip
    14 Other
    15 Missing value

8-13 Reserved

0'02'103 - Radome

 F 002103
     1 Radar antenna is protected by a radome
 All 2 Missing value

0'02'104 - Antenna polarization

 C 002104
     0 Horizontal polarization
     1 Vertical polarization
     2 Right circular polarization
     3 Left circular polarization
     4 Horizontal and vertical polarization
     5 Right and left circular polarization
     6 Quasi-horizontal polarization
     7 Quasi-vertical polarization
    15 Missing value

8-14 Reserved

0'02'115 - Type of surface observing equipment

 C 002115
     0 PDB
     1 RSOIS
     2 ASOS
     3 Psychrometer
     4 F420
    30 Other
    31 Missing value

5-29 Reserved

0'02'119 - Instrument operations

 C 002119
     0 Intermediate Frequency Calibration Mode (IF CAL)
     1 Built-In Test Equipment Digital (BITE DGT)
     2 Built-In test Equipment Radio Frequency (BITE RF)
     3 Preset tracking (PSET TRK)
     4 Preset LOOP OUT
     5 ACQUISITION
     6 TRACKING
     7 Missing value

0'02'131 - Sensitivity time control (STC)

 F 002131
     1 STC operational
 All 2 Missing value

0'02'143 - Ozone instrument type

 C 002143
     0 Reserved
     1 Brewer spectrophotometer
     2 Caver Teichert
     3 Dobson
     4 Dobson (Japan)
     5 Ehmet
     6 Fecker telescope
     7 Hoelper
     8 Jodmeter
     9 Filter Ozonometer M-83
    10 Mast
    11 Oxford
    12 Paetzold
    13 Regener
    14 Reserved for future use
    15 Vassy filter Ozonometer
    16 Carbon iodide
    17 Surface ozone bubbler
    18 Filter Ozonometer M-124
    19 ECC sonde
   127 Missing value

20-126 Reserved

0'02'144 - Light source type for Brewer spectrophotometer

 C 002144
     0 Direct Sun
     1 Direct Sun, attenuator #1
     2 Direct Sun, attenuator #2
     3 Focussed Moon
     4 Focussed Sun
     5 Focussed Sun corrected with adjacent sky measurements
     6 Zenith Sky
    15 Missing value

7-14 Reserved

Note: Entries 1 and 2 should not be used.


0'02'145 - Wavelength setting for Dobson instruments

 C 002145
     0 Wavelengths AD ordinary setting
     1 Wavelengths BD ordinary setting
     2 Wavelengths CD ordinary setting
     3 Wavelengths CC' ordinary setting
     4 Wavelengths AD focussed image
     5 Wavelengths BD focussed image
     6 Wavelengths CD focussed image
     7 Wavelengths CC' focussed image
    15 Missing value

8-14 Reserved

0'02'146 - Source condition for Dobson instruments

 C 002146
     0 On direct Sun
     1 On direct Moon
     2 On blue zenith Sky
     3 On zenith cloud (uniform stratified layer of small opacity)
     4 On zenith cloud (uniform or moderately variable layer of medium opacity)
     5 On zenith cloud (uniform or moderately variable layer of large opacity)
     6 On zenith cloud (highly variable opacity, with or without precipitation)
     7 On zenith cloud (fog)
     8 On zenith haze
     9 On direct sun through thin cloud, fog or haze
    15 Missing value

10-14 Reserved

0'02'148 - Data collection and/or location system

 C 002148
     0 Reserved
     1 Argos
     2 GPS
     3 GOES DCP
     4 METEOSAT DCP
     5 ORBCOMM
     6 INMARSAT
     7 Iridium
     8 Iridium and GPS
     9 Argos-3
    10 Argos-4
    31 Missing value

11-30 Reserved

0'02'149 - Type of data buoy

 C 002149
     0 Unspecified drifting buoy
     1 Standard Lagrangian drifter (Global Drifter Programme)
     2 Standard FGGE type drifting buoy (non-Lagrangian meteorological drifting buoy)
     3 Wind measuring FGGE type drifting buoy (non-Lagrangian meteorological drifting buoy)
     4 Ice float
     5 SVPG Standard Lagrangian drifter with GPS
     6 SVP-HR Drifter with high resolution temperature or thermistor string
     7 Reserved Operational
     8 Unspecified sub-surface float
     9 SOFAR
    10 ALACE
    11 MARVOR
    12 RAFOS
    13 PROVOR
    14 SOLO
    15 APEX
    16 Unspecified moored buoy
    17 Nomad
    18 3-metre discus
    19 10-12-metre discus
    20 ODAS 30 series
    21 ATLAS (e.g. TAO area)
    22 TRITON buoy
    23 FLEX Mooring (e.g. TIP Area)
    24 Omnidirectional waverider
    25 Directional waverider
    26 Sub-surface ARGO float
    27 PALACE
    28 NEMO
    29 NINJA
    30 Ice Buoy/Float (POPS or ITP)
    34 Mooring Oceanographic
    35 Mooring Meteorological
    36 Mooring Multidisciplinary (OceanSITES)
    37 Mooring Tide Gauge or Tsunami buoy
    63 Missing value

38-62 Reserved

0'02'150 - TOVS/ATOVS/AVHRR instrumentation channel number

 C 002150
     0 Reserved
     1 HIRS 1
     2 HIRS 2
     3 HIRS 3
     4 HIRS 4
     5 HIRS 5
     6 HIRS 6
     7 HIRS 7
     8 HIRS 8
     9 HIRS 9
    10 HIRS 10
    11 HIRS 11
    12 HIRS 12
    13 HIRS 13
    14 HIRS 14
    15 HIRS 15
    16 HIRS 16
    17 HIRS 17
    18 HIRS 18
    19 HIRS 19
    20 HIRS 20
    21 MSU 1
    22 MSU 2
    23 MSU 3
    24 MSU 4
    25 SSU 1
    26 SSU 2
    27 SSU 3
    28 AMSU-A 1
    29 AMSU-A 2
    30 AMSU-A 3
    31 AMSU-A 4
    32 AMSU-A 5
    33 AMSU-A 6
    34 AMSU-A 7
    35 AMSU-A 8
    36 AMSU-A 9
    37 AMSU-A 10
    38 AMSU-A 11
    39 AMSU-A 12
    40 AMSU-A 13
    41 AMSU-A 14
    42 AMSU-A 15
    43 AMSU-B 1 / MHS 1
    44 AMSU-B 2 / MHS 2
    45 AMSU-B 3 / MHS 3
    46 AMSU-B 4 / MHS 4
    47 AMSU-B 5 / MHS 5
    48 AVHRR 1
    49 AVHRR 2
    50 AVHRR 3a
    51 AVHRR 3b
    52 AVHRR 4
    53 AVHRR 5
    63 Missing value

54-62 Reserved

0'02'151 - Radiometer identifier

 C 002151
     0 HIRS
     1 MSU
     2 SSU
     3 AMSU-A1-1
     4 AMSU-A1-2
     5 AMSU-A2
     6 AMSU-B
     7 AVHRR
     8 Reserved
     9 MHS
  2047 Missing value

10-2046 Reserved

0'02'152 - Satellite instrument used in data processing

 F 002152
     1 High-resolution infrared sounder (HIRS)
     2 Microwave sounding unit (MSU)
     3 Stratospheric sounding unit (SSU)
     4 AMI wind mode
     5 AMI wave mode
     6 AMI image mode
     7 RADAR altimeter
     8 ATSR
     9 Geostationary imager
    10 Geostationary sounder
    11 Geostationary Earth radiation (GERB)
    12 Multi-channel scanning radiometer
    13 Polar orbiting imager
All 31 Missing value
 
14-30 Reserved

0'02'158 - RA-2 Instruments

 F 002158
     1 Mismatch in RED VEC HPA
     2 Mismatch in RED VEC RFSS
     3 PTR calibration band 320 MHz (Ku)
     4 PTR calibration band 80 MHz (Ku)
     5 PTR calibration band 20 MHz (Ku)
     6 PTR calibration band 160 MHz (S)
     7 Ku flight calibration parameters available
     8 S flight calibration parameters available
 All 9 Missing value

Note: PTR = Pulse Target Response; HPA = High Power Amplifier; RFSS Radio Frequency Sub-System; RED = Redundancy.


0'02'159 - MWR Instruments

 F 002159
     1 Temperature inconsistency
     2 Data is missing
     3 Redundancy channel
     4 Power bus protection
     5 Overvoltage/Overload protection
     6 Reserved
     7 Reserved
 All 8 Missing value

Note: MWR - Microwave radiometer .


0'02'160 - Wave length of the radar

 C 002160
     0 Reserved
     1 10 to less than 20 mm
     2 Reserved
     3 20 to less than 40 mm
     4 Reserved
     5 40 to less than 60 mm
     6 Reserved
     7 60 to less than 90 mm
     8 90 to less than 110 mm
     9 110 mm and greater
    15 Missing value

10-14 Not used

0'02'163 - Height assignment method

 C 002163
     0 Auto editor
     1 IRW height assignment
     2 WV height assignment
     3 H2O intercept height assignment
     4 CO2 slicing height assignment
     5 Low pixel max gradient
     6 Higher pixel max gradient
     7 Primary height assignment
     8 Layer thickness assignment
     9 Cumulative contribution function -10 percent height
    10 Cumulative contribution function -50 percent height
    11 Cumulative contribution function -90 percent height
    12 Cumulative contribution function - height of maximum gradient
    13 IR / two WV channel ratioing method
    14 Composite height assignment
    15 Missing value

0'02'164 - Tracer correlation method

 C 002164
     0 LP - Norms least square minimum
     1 EN - Euclidean norm with radiance correlation
     2 CC - Cross correlation
     7 Missing value

3-6 Reserved

0'02'165 - Radiance type flags

 B 002165
     1 Clear path
     2 Partly cloudy path
     3 Cloudy path
     4 Apodized
     5 Unapodized
     6 Reconstructed
     7 Cloud cleared

8-14 Reserved
All 15 Missing value

0'02'166 - Radiance type

 C 002166
     0 Type not defined
     1 Automated statistical regression
     2 Clear path
     3 Partly cloudy path
     4 Cloudy path
    15 Missing value

5-14 Reserved

0'02'167 - Radiance computational method

 C 002167
     0 Method not defined
     1 1b raw radiance
     2 Processed radiance
    15 Missing value

3-14 Reserved

0'02'169 - Anemometer type

 C 002169
     0 Cup rotor
     1 Propeller rotor
     2 Wind Observation Through Ambient Noise (WOTAN)
     3 Sonic
    15 Missing value

4-14 Reserved

0'02'172 - Product type for retrieved atmospheric gases

 C 002172
     0 Reserved
     1 Retrieval from a nadir sounding
     2 Retrieval from a limb sounding
   255 Missing value

3-254 Reserved

0'02'175 - Method of precipitation measurement

 C 002175
     0 Manual measurement
     1 Tipping bucket method
     2 Weighing method
     3 Optical method
     4 Pressure method
     5 Float method
     6 Drop counter method
    14 Others
    15 Missing value

7-13 Reserved

0'02'176 - Method of state of ground measurement

 C 002176
     0 Manual observation
     1 Video camera method
     2 Infra-red method
     3 Laser method
    14 Others
    15 Missing value

4-13 Reserved

0'02'177 - Method of snow depth measurement

 C 002177
     0 Manual observation
     1 Ultrasonic method
     2 Video camera method
    14 Others
    15 Missing value

3-13 Reserved

0'02'178 - Method of liquid content measurement of precipitation

 C 002178
     0 Manual observation
     1 Optical method
     2 Capacitive method
    14 Others
    15 Missing value

3-13 Reserved

0'02'179 - Type of sky condition algorithm

 C 002179
     0 Manual observation
     1 VAISALA algorithm
     2 ASOS (FAA) algorithm
     3 AWOS (Canada) algorithm
    14 Others
    15 Missing value

4-13 Reserved

0'02'180 - Main present weather detecting system

 C 002180
     0 Manual observation
     1 Optical scatter system combined with precipitation occurrence sensing system
     2 Forward and/or back-scatter system of visible light
     3 Forward and/or back-scatter system of infrared light
     4 Infrared light emitting diode (IRED) system
     5 Doppler radar system
    14 Others
    15 Missing value

6-13 Reserved

0'02'181 - Supplementary present weather sensor

 F 002181
     1 Rain detector
     2 Freezing rain sensor
     3 Ice detection sensor
     4 Hail and ice pellet sensor
    20 Others
All 21 Missing value
 
5-19 Reserved

0'02'182 - Visibility measurement system

 C 002182
     0 Manual measurement
     1 Transmissometer system (base >= 25 m)
     2 Transmissometer system (base < 25 m)
     3 Forward scatter system
     4 Back scatter system
    14 Others
    15 Missing value

5-13 Reserved

0'02'183 - Cloud detection system

 C 002183
     0 Manual observation
     1 Ceilometer system
     2 Infrared camera system
     3 Microwave visual camera system
     4 Sky imager system
     5 Video time lapsed camera system
     6 Micropulse lidar (MPL) system
    14 Others
    15 Missing value

7-13 Reserved

0'02'184 - Type of lightning detection sensor

 C 002184
     0 Manual observation
     1 Lightning imaging sensor
     2 Electrical storm identification sensor
     3 Magnetic finder sensor
     4 Lightning strike sensor
     5 Flash counter
     6 ATDnet VLF waveform correlated sensor
    14 Others
    15 Missing value

7-13 Reserved

0'02'185 - Method of evaporation measurement

 C 002185
     0 Manual measurement
     1 Balanced floating method
     2 Pressure method
     3 Ultrasonic method
     4 Hydraulic method
    14 Others
    15 Missing value

5-13 Reserved

0'02'186 - Capability to detect precipitation phenomena

 F 002186
     1 Precipitation-unknown type
     2 Liquid precipitation not freezing
     3 Liquid freezing precipitation
     4 Drizzle
     5 Rain
     6 Solid precipitation
     7 Snow
     8 Snow grains
     9 Snow pellets
    10 Ice pellets
    11 Ice crystals
    12 Diamond dust
    13 Small hail
    14 Hail
    15 Glaze
    16 Rime
    17 Soft rime
    18 Hard rime
    19 Clear ice
    20 Wet snow
    21 Hoar frost
    22 Dew
    23 White dew
All 30 Missing value
 
24-29 Reserved

0'02'187 - Capability to detect other weather phenomena

 F 002187
     1 Dust/sand whirl
     2 Squalls
     3 Sand storm
     4 Dust storm
     5 Lightning - cloud to surface
     6 Lightning - cloud to cloud
     7 Lightning - distant
     8 Thunderstorm
     9 Funnel Cloud not touching surface
    10 Funnel cloud touching surface
    11 Spray
All 18 Missing value
 
12-17 Reserved

0'02'188 - Capability to detect obscuration

 F 002188
     1 Fog
     2 Ice fog
     3 Steam fog
     7 Mist
     8 Haze
     9 Smoke
    10 Volcanic ash
    11 Dust
    12 Sand
    13 Snow
All 21 Missing value
 
4-6, 14-20 Reserved

0'02'189 - Capability to discriminate lightning strikes

 F 002189
     1 Manual observation
     2 All lightning strikes without discrimination
     3 Lightning strikes cloud to ground only
     4 All lightning strikes with discrimination between cloud to ground and cloud to cloud
All 12 Missing value
 
5-11 Reserved

Class 04


0'04'059 - Times of observation used to compute the reported mean values

 F 004059
     1 00 UTC
     2 06 UTC
     3 12 UTC
     4 18 UTC
     5 Other hours
 All 6 Missing value

0'04'080 - Averaging period for following value

 C 004080
     0 Spot values
     1 Less than 15 minutes
     2 From 15 to 45 minutes
     3 More than 45 minutes
     9 Data not available
    15 Missing value

4-8 Reserved 10-14 Not used

Class 08


0'08'001 - Vertical sounding significance

 F 008001
     1 Surface
     2 Standard level
     3 Tropopause level
     4 Maximum wind level
     5 Significant level, temperature and/or relative humidity
     6 Significant level, wind
 All 7 Missing value

0'08'002 - Vertical significance (surface observation)

 C 008002
     0 Observing rules for base of lowest cloud and cloud types of FM 12 SYNOP and FM 13 SHIP apply
     1 First non-Cumulonimbus significant layer
     2 Second non-Cumulonimbus significant layer
     3 Third non-Cumulonimbus significant layer
     4 Cumulonimbus layer
     5 Ceiling
     6 Cloud not detected below the following height(s)
     7 Low cloud
     8 Middle cloud
     9 High cloud
    10 Cloud layer with base below the station level and top above the station level
    11 Cloud layer with base and top below the station level
    20 No clouds detected by the cloud detection system
    21 First instrument detected cloud layer
    22 Second instrument detected cloud layer
    23 Third instrument detected cloud layer
    24 Fourth instrument detected cloud layer
    62 Value not applicable
    63 Missing value

12-19, 25-61 Reserved

0'08'003 - Vertical significance (satellite observations)

 C 008003
     0 Surface
     1 Base of satellite sounding
     2 Cloud top
     3 Tropopause
     4 Precipitable water
     5 Sounding radiances
     6 Mean temperatures
     7 Ozone
     8 Low cloud
     9 Med cloud
    10 High cloud
    63 Missing value

11-62 Reserved

0'08'004 - Phase of aircraft flight

 C 008004
     0 Reserved
     1 Reserved
     2 Unsteady (UNS)
     3 Level flight, routine observation (LVR)
     4 Level flight, highest wind encountered (LVW)
     5 Ascending (ASC)
     6 Descending (DES)
     7 Missing value

0'08'005 - Meteorological attribute significance

 C 008005
     0 Reserved
     1 Storm centre
     2 Outer limit or edge of storm
     3 Location of maximum wind
     4 Location of the storm in the perturbed analysis
     5 Location of the storm in the analysis
    15 Missing value

6-14 Reserved

0'08'006 - Ozone vertical sounding significance

 F 008006
     1 Surface
     2 Standard level
     3 Tropopause level
     4 Prominent maximum level
     5 Prominent minimum level
     6 Minimum pressure level
     7 Reserved
     8 Level of undetermined significance

All 9: Missing value

0'08'007 - Dimensional significance

 C 008007
     0 Point
     1 Line
     2 Area
     3 Volume
    15 Missing value

4-14 Reserved

Note:

  1. A consecutive sequence of 2 or more of location coordinates, such as latitude and longitude pairs, defines a line or polygon. Points shall be joined in the order given in the message. Any area described will fall left of the drawn boundary in the direction established by the order of the points given in the message. This definition is for simple non-intersecting polygons without holes.

0'08'008 - Radiation vertical sounding significance

 F 008008
     1 Surface
     2 Standard level
     3 Tropopause level
     4 Level of beta radiation maximum
     5 Level of gamma radiation maximum
     6 Minimum pressure level
     7 Reserved
     8 Level of undetermined significance
All 9 Missing value

0'08'009 - Detailed phase of aircraft flight

 C 008009
     0 Level flight, routine observation, unsteady
     1 Level flight, highest wind encountered, unsteady
     2 Unsteady (UNS)
     3 Level flight, routine observation (LVR)
     4 Level flight, highest wind encountered (LVW)
     5 Ascending (ASC)
     6 Descending (DES)
     7 Ascending, observation intervals selected by time increments
     8 Ascending, observation intervals selected by time increments, unsteady
     9 Ascending, observation intervals selected by pressure increments
    10 Ascending, observation intervals selected by pressure increments, unsteady
    11 Descending, observation intervals selected by time increments
    12 Descending, observation intervals selected by time increments, unsteady
    13 Descending, observation intervals selected by pressure increments
    14 Descending, observation intervals selected by pressure increments, unsteady
    15 Missing value

0'08'010 - Surface qualifier (for temperature data)

 C 008010
     0 Reserved
     1 Bare soil
     2 Bare rock
     3 Land grass cover
     4 Water (lake, sea)
     5 Flood water underneath
     6 Snow
     7 Ice
     8 Runway or road
     9 Ship or platform deck in steel
    10 Ship or platform deck in wood
    11 Ship or platform deck partly covered with rubber mat
    31 Missing value

12-30 Reserved

0'08'011 - Meteorological feature

 C 008011
     0 Quasi-stationary front at the surface
     1 Quasi-stationary front above the surface
     2 Warm front at the surface
     3 Warm front above the surface
     4 Cold front at the surface
     5 Cold front above the surface
     6 Occlusion
     7 Instability line
     8 Intertropical front
     9 Convergence line
    10 Jet stream
    11 Cloud clear
    12 Cloud
    13 Turbulence
    14 Storm
    15 Airframe icing
    16 Phenomenon
    17 Volcano
    18 Atmospherics
    19 Reserved
    20 Special clouds
    21 Thunderstorm
    22 Tropical cyclone
    23 Mountain Wawe
    24 Duststorm
    25 Sandstorm
    63 Missing value

26-62 Reserved

0'08'012 - Land/sea qualifier

 C 008012
     0 Land
     1 Sea
     2 Coast
     3 Missing value

0'08'013 - Day/night qualifier

 C 008013
     0 Night
     1 Day
     2 Twilight
     3 Missing value

0'08'014 - Qualifier for runway visual range

 C 008014
     0 10-minute mean value - normal value
     1 10-minute mean value - above the upper limit for assessments of RVR (P)
     2 10-minute mean value - below the lower limit for assessments of RVR (M)
     3 one-minute minumum value - normal value
     4 one-minute minumum value - above the upper limit for assessments of RVR (P)
     5 one-minute minumum value - below the lower limit for assessments of RVR (M)
     6 one-minute maximum value - normal value
     7 one-minute maximum value - above the upper limit for assessments of RVR (P)
     8 one-minute maximum value - below the lower limit for assessments of RVR (M)
    15 Missing value

9-14 Reserved

0'08'016 - Change qualifier of a trend-type forecast or an aerodrome forecast

 C 008016
     0 NOSIG
     1 BECMG
     2 TEMPO
     3 FM
     7 Missing value

4-6 Reserved

0'08'017 - Qualifier of the time when the forecast change is expected

 C 008017
     0 FM
     1 TL
     2 AT
     3 Missing value

0'08'018 - SEAWINDS land/ice surface type

 F 008018
     1 Land is present
     2 Surface ice map indicates ice is present
    11 Ice map data not available
    12 Attenuation map data not available
All 17 Missing value
 
3-10, 13-16 Reserved

0'08'019 - Qualifier for following centre identifier

 C 008019
     0 Reserved
     1 ATS (Air Traffic Service) unit serving FIR (Flight Information Region)
     2 FIR (Flight Information Region)
     3 UIR (Upper Information Region)
     4 CTA (Control Area)
     5 VAAC (Volcanic Ash Advisory Centre)
     6 MWO (Meteorological Watch Office) issuing SIGMET
    15 Missing value

7-14 Reserved

0'08'021 - Time significance

 C 008021
     0 Reserved
     1 Time series
     2 Time averaged
     3 Accumulated
     4 Forecast
     5 Forecast time series
     6 Forecast time averaged
     7 Forecast accumulated
     8 Ensemble mean
     9 Ensemble mean time series
    10 Ensemble mean time averaged
    11 Ensemble mean accumulated
    12 Ensemble mean forecast
    13 Ensemble mean forecast time series
    14 Ensemble mean forecast time averaged
    15 Ensemble mean forecast accumulated
    16 Analysis
    17 Start of phenomenon
    18 Radiosonde launch time
    19 Start of orbit
    20 End of orbit
    21 Time of ascending node
    22 Time of occurrence of wind shift
    23 Monitoring period
    24 Agreed time limit for report reception
    25 Nominal reporting time
    26 Time of last known position
    27 First guess
    28 Start of scan
    29 End of scan
    30 Reserved
    31 Missing value

Notes:

  1. "Time averaged" indicates that values are continuously averaged over a period of time.
  2. "Ensemble mean" indicates that a number of distinct values corresponding to a set of time locations are averaged.
  3. Time significance must be qualified by appropriate time periods being specified.

0'08'023 - First order statistics

 C 008023
     0 Reserved
     1 Reserved
     2 Maximum value
     3 Minimum value
     4 Mean value
     5 Median value
     6 Modal value
     7 Mean absolute error
     8 Reserved
     9 Best estimate of standard deviation (N-1)
    10 Standard deviation (N)
    11 Harmonic mean
    12 Root-mean-square vector error
    13 Root-mean-square
    32 Vector mean
    63 Missing value
 
14-31 Reserved 33-62 Reserved for local use

Note: All first order statistics are in the units defined by the original data descriptors.


0'08'024 - Difference statistics

 C 008024
     0 Reserved
     1 Reserved
     2 Observed minus maximum
     3 Observed minus minimum
     4 Observed minus mean
     5 Observed minus median
     6 Observed minus mode
    11 Observed minus climatology (anomaly)
    12 Observed minus analysed value
    13 Observed minus initialized analysed value
    14 Observed minus forecast value
    21 Observed minus interpolated value
    22 Observed minus hydrostatically calculated value
    63 Missing value
 
7-10, 15-20, 23-31 Reserved 32-62 Reserved for local use

Notes:

  1. Difference statistics are difference values; they have dimensions the same as the corresponding reported values with respect to units, but assume a range centred on zero (e.g., the difference between reported and analysed values, the difference between reported and forecast values, etc.).
  2. Where observed minus forecast values are represented, the period of the forecast shall be indicated by an appropriate descriptor from class 4.

0'08'025 - Time difference qualifier

 C 008025
     0 Universal Time Coordinated (UTC) minus Local Standard Time (LST)
     1 Local Standard Time
     2 Universal Time Coordinated (UTC) minus Satellite clock
     5 Time difference from edge of processing segment
    15 Missing

3-4, 6-14 Reserved

0'08'026 - Matrix significance

 C 008026
     0	Averaging kernel matrix
     1	Correlation matrix (C) 
     2	Lower triangular correlation matrix square root      (L from C=LLT)
     3	Inverse of lower triangular correlation matrix square root (L-1)
    63	Missing or undefined significance

4-42 Reserved, 43-62 Reserved for local use

0'08'029 - Remotely-sensed surface type

 C 008029
     0 Open ocean or semi-enclosed sea
     1 Enclosed sea or lake
     2 Continental ice
     3 Land
     4 Low inland (below sea level)
     5 Mix of land and water
     6 Mix of land and low inland
    11 river
    12 lake
    13 sea
    14 glacier
   255 Missing value

7-10, 15-254 Reserved

0'08'033 - Method of derivation of percentage confidence

 C 008033
     0 Reserved
     1 Percentage confidence calculated using cloud fraction
     2 Percentage confidence calculated using standard deviation of temperature
     3 Percentage confidence calculated using probability of cloud contamination
     4 Percentage confidence calculated using normality of distribution
   127 Missing value

5-126 Reserved

0'08'035 - Type of monitoring exercise

 C 008035
     0 Global
     1 Regional
     2 National
     3 Special
     4 Bilateral
     5 Reserved
     6 Reserved
     7 Missing value

0'08'036 - Type of centre or station performing monitoring

 C 008036
     0 WMO Secretariat
     1 WMO
     2 RSMC
     3 NMC
     4 RTH
     5 Observing site
     6 Other
     7 Missing value

0'08'039 - Time significance (Aviation forecast)

 C 008039
     0	Issue time of forecast
     1	Time of commencement of period of the forecast 
     2	Time of ending of period of the forecast
     3	Forecast time of maximum temperature
     4	Forecast time of minimum temperature
     5	Time of beginning of the forecast change
     6	Time of ending of the forecast change
    63	Missing value

7-62 Reserved

0'08'040 - Flight level significance

 C 008040
     0 High resolution data sample
     1 Within 20 hPa of surface
     2 Pressure less than 10 hPa (i.e., 9, 8, 7, etc.) when no other reason applies
     3 Base pressure level for stability index
     4 Begin doubtful temperature, height data
     5 Begin missing data (all elements)
     6 Begin missing RH data
     7 Begin missing temperature data
     8 Highest level reached before balloon descent because of icing or turbulence
     9 End doubtful temperature, height data
    10 End missing data (all elements)
    11 End missing RH data
    12 End missing temperature data
    13 Zero degrees C crossing(s) for RADAT
    14 Standard pressure level
    15 Operator added level
    16 Operator deleted level
    17 Balloon re-ascended beyond previous highest ascent level
    18 Significant RH level
    19 RH level selection terminated
    20 Surface level
    21 Significant temperature level
    22 Mandatory temperature level
    23 Flight termination level
    24 Tropopause(s)
    25 Aircraft report
    26 Interpolated (generated) level
    27 Mandatory wind level
    28 Significant wind level
    29 Maximum wind level
    30 Incremental wind level (fixed regional)
    31 Incremental height level (generated)
    32 Wind termination level
    33 Pressure 100 to 110 hPa, when no other reason applies
    34 Freezing level base
    35 Freezing level top
    36 Flight level base
    37 Flight level top
    40 Significant thermodynamic level (inversion)
    41 Significant RH level (per NCDC criteria)
    42 Significant temperature level (per NCDC)
    43 Begin missing wind data
    44 End missing wind data
    60 Level of 80-knot isotach above jet
    61 Level of 80-knot isotach below jet
    62 Other
    63 Missing value

38-39, 45-59 Reserved

0'08'041 - Data significance

 C 008041
     0 Parent site
     1 Observation site
     2 Balloon manufacture date
     3 Balloon launch point
     4 Surface observation
     5 Surface observation displacement from launch point
     6 Flight level observation
     7 Flight level termination point
     8 IFR Ceiling and Visibility
     9 Mountain obscuration
    10 Strong surface wind
    11 Freezing level
    12 Multiple freezing level
    13 Instrument manufacture date
    31 Missing value

14-30 Reserved

0'08'042 - Extended vertical sounding significance

 F 008042
     1 Surface
     2 Standard level
     3 Tropopause level
     4 Maximum wind level
     5 Significant temperature level
     6 Significant humidity level
     7 Significant wind level
     8 Beginning of missing temperature data
     9 End of missing temperature data
    10 Beginning of missing humidity data
    11 End of missing humidity data
    12 Beginning of missing wind data
    13 End of missing wind data
    14 Top of wind sounding
    15 Level determined by regional decision
    16 Reserved
    17 Pressure level originally indicated by height as the vertical coordinate
All 18 Missing value

0'08'043 - Atmospheric chemical or physical constituent type

Note: The last column in the table contains the associated registry number from the Chemical Abstracts Service (CAS) of the American Chemical Society.

 C 008043
     0	Ozone - O3 - 10028-15-6
     1	Water vapour - H2O - 7732-18-5
     2	Methane - CH4 - 74-82-8
     3	Carbon dioxide - CO2 - 124-38-9
     4	Carbon monoxide - CO - 630-08-0
     5	Nitrogen dioxide - NO2 - 10102-44-0
     6	Nitrous oxide - N2O - 10024-97-2
     7	Formaldehyde - HCHO - 50-00-0
     8	Sulfur dioxide - SO2 - 7446-09-5
    25	Particulate Matter < 1.0 microns
    26	Particulate Matter < 2.5 microns
    27	Particulate Matter < 10 microns
    28	Aerosols (generic)
    29	Smoke (generic)
    30	Crustal Material (generic dust)
    31	Volcanic Ash
   255	Missing value

09-24 Reserved, 32-200 Reserved, 201-254 Reserved for local use

0'08'050 - Qualifier for number of missing values in calculation of statistic

 C 008050
     0 Reserved
     1 Pressure
     2 Temperature
     3 Extreme temperature
     4 Vapour pressure
     5 Precipitation
     6 Sunshine duration
     7 Maximum temperature
     8 Minimum temperature
     9 Wind
    15 Missing value

10-14 Reserved

0'08'051 - Qualifier for number of missing values in calculation of statistic

 C 008051
     1 Pressure
     2 Temperature
     3 Extreme temperature
     4 Vapour pressure
     5 Precipitation
     6 Sunshine duration
     7 Missing value

0'08'052 - Condition for which number of days of occurrence follows

 C 008052
     0 Mean wind speed over a 10-minute period observed or recorded equal to or more than 10 m/s or 20 knots
     1 Mean wind speed over a 10-minute period observed or recorded equal to or more than 20 m/s or 40 knots
     2 Mean wind speed over a 10-minute period observed or recorded equal to or more than 30 m/s or 60 knots
     3 Maximum temperature less than 273.2 K
     4 Maximum temperature equal to or more than 298.2 K
     5 Maximum temperature equal to or more than 303.2 K
     6 Maximum temperature equal to or more than 308.2 K
     7 Maximum temperature equal to or more than 313.2 K
     8 Minimum temperature less than 273.2 K
     9 Maximum temperature equal to or more than 273.2 K
    10 Precipitation equal to or more than 1.0 kg/m²
    11 Precipitation equal to or more than 5.0 kg/m²
    12 Precipitation equal to or more than 10.0 kg/m²
    13 Precipitation equal to or more than 50.0 kg/m²
    14 Precipitation equal to or more than 100.0 kg/m²
    15 Precipitation equal to or more than 150.0 kg/m²
    16 Snow depth more than 0.00 m
    17 Snow depth more than 0.01 m
    18 Snow depth more than 0.10 m
    19 Snow depth more than 0.50 m
    20 Horizontal visibility less than 50 m
    21 Horizontal visibility less than 100 m
    22 Horizontal visibility less than 1000 m
    23 Hail
    24 Thunderstorm
    31 Missing value

 25-30 Reserved

0'08'053 - Day of occurrence qualifier

 C 008053
     0 Value occurred on only one day in the month
     1 Value occurred on more than one day in the month
     2 Reserved
     3 Missing value

0'08'054 - Qualification of wind speed or wind gusts

 C 008054
     0	Wind speed or gust is as reported
     1	Wind speed is greater than that reported (P in METAR/TAF/SPECI)
     7	Missing value

2-6 Reserved

0'08'060 - Sample scanning mode significance

 C 008060
     0 Reserved
     1 Range
     2 Azimuth
     3 Horizontal
     4 Vertical
     5 North/South
     6 East/West
    15 Missing value

7-14 Reserved

0'08'065 - Sun-glint indicator

 C 008065
     0 No sun-glint
     1 Sun-glint
     2 Reserved
     3 Missing value

0'08'066 - Semi-transparency indicator

 C 008066
     0 Opaque
     1 Semi-transparent
     2 Reserved
     3 Missing value

0'08'070 - TOVS/ATOVS product qualifier

 C 008070
     0 Reserved
     1 Reserved
     2 Earth located instrument counts, calibration coefficients and housekeeping (level 1b)
     3 Earth located calibrated radiances (level 1c)
     4 Mapped to a common footprint, Earth located calibrated radiances (level 1d)
    15 Missing value

5-14 Reserved

0'08'072 - Pixel(s) type

 C 008072
     0 Mixed
     1 Clear
     2 Cloudy
     7 Missing value

3-6 Reserved

0'08'074 - Altimeter echo type

 C 008074
     0 Open ocean or semi-enclosed sea
     1 Non-ocean like
     2 Reserved
     3 Missing value

0'08'075 - Ascending/descending orbit qualifier

 C 008075
     0 Ascending orbit
     1 Descending orbit
     2 Reserved
     3 Missing value

0'08'076 - Type of band

 C 008076
     0 Ku
     1 C
     2 Long-wave infrared
     3 Medium-wave infrared
     4 Short-wave infrared
    63 Missing value

5-62 Reserved

0'08'077 - Radiometer sensed surface type

 C 008077
     0	Land
     1	Sea
     2	Coastal
     3	Open ocean or semi-enclosed sea
     4	Enclosed sea or lake
     5	Continental ice
   127	Missing value

6-126 Reserved

0'08'079 - Aviation product status

 C 008079
     0 Normal issue
     1 Correction to a previously issued product (COR)
     2 Amendment to a previously issued product (AMD)
     3 Correction to a previously issued amended product (COR AMD)
     4 Cancellation of a previously issued product (CNL)
     5 No product available (NIL)
     6 Special report (SPECI)
     7 Corrected special report (SPECI COR)
    15 Missing or not applicable

  8-14 Reserved

0'08'080 - Qualifier for GTSPP quality flag

 C 008080
     0 Total water pressure profile
     1 Total water temperature profile
     2 Total water salinity profile
     3 Total water conductivity profile
     4 Total water depth
    10 Water pressure at a level
    11 Water temperature at a level
    12 Salinity at a level
    13 Water depth at a level
    20 Position
    63 Missing value

 5-9, 14-19, 21-62 Reserved

0'08'081 - Type of equipment

 C 008081
     0 Sensor
     1 Transmitter
     2 Receiver
     3 Observing platform
    63 Missing value

4-62 Reserved

0'08'082 - Modification of sensor height to another value

 C 008082
     0 Sensor height is not modified
     1 Sensor height is modified to standard level
     7 Missing value

2-6 Reserved

Notes

  1. If 0'08'082 = 1, standard level is indicated by the descriptor of class 7, which immediately follows. It is possible to indicate the real height of the sensor by preceding the descriptor by relevant class 7 descriptor.

0'08'083 - Nominal value indicator

 F 008083
     1 Adjusted with respect to representative height of sensor above local ground (or Deck of marine platform)
     2 Adjusted with respect to representative height of sensor above water surface
     3 Adjusted with respect to standard surface roughness
     4 Adjusted with respect to wind speed
     5 Adjusted with respect to temperature
     6 Adjusted with respect to pressure
     7 Adjusted with respect to humidity
     8 Adjusted with respect to evaporation
     9 Adjusted with respect to wetting losses
All 15 Missing value
 
10-14 Reserved

0'08'085 - Beam identifier

 C 008085
     0 Fore beam
     1 Mid beam
     2 Aft beam
     7 Missing value

3-6 Reserved

Class 10


0'10'063 - Characteristics of pressure tendency

 C 010063
     0 Increasing, then decreasing; atmospheric pressure the same or higher than 3 hours ago
     1 Increasing, then steady; or increasing, then more slowly - atmospheric pressure now higher than 3 hours ago
     2 Increasing (steadily or unsteadily) - atmospheric pressure now higher than 3 hours ago
     3 Decreasing or steady, then increasing; or increasing, then increasing more rapidly - atmospheric pressure now higher than 3 hours ago
     4 Steady; atmospheric pressure the same as 3 hours ago
     5 Decreasing, then increasing; atmospheric pressure the same or lower than 3 hours ago
     6 Decreasing, then steady; or decreasing, then decreasing more slowly - atmospheric pressure now lower than 3 hours ago
     7 Decreasing (steadily or unsteadely) - atmospheric pressure now lower than 3 hours ago
     8 Steady or increasing, then decreasing; or decreasing, then decreasing more rapidly - atmospheric pressure now lower than 3 hours ago
    15 Missing

9-14 Reserved

Notes:

  1. In reports from automatic stations, code figure 2 shall be used when tendency is positive, 7 when negative, and 4 when the pressure is the same as 3 hours before.
  2. In reports from tropical stations reporting 24-hour pressure changes, code figure 2 shall be used when tendency is positive, 7 when negative, and 4 when pressure is the same as 24 hours before.

0'10'064 - SIGMET cruising level

 C 010064
     0 Subsonic
     1 Transonic
     2 Supersonic
     7 Missing value

3-6 Reserved

Class 11


0'11'030 - Degree of turbulence

 C 011030
     0 Nil, in cloud
     1 Light, in cloud
     2 Moderate, in cloud
     3 Severe, in cloud
     4 Nil, in clear air
     5 Light, in clear air
     6 Moderate, in clear air
     7 Severe, in clear air
     8 Nil, cloud/clear air not specified
     9 Light, cloud/clear air not specified
    10 Moderate, cloud/clear air not specified
    11 Severe, cloud/clear air not specified
    12 Extreme, in clear air
    13 Extreme, in cloud
    14 Extreme, cloud/clear air not specified
    15 Light, isolated moderate
    16 Light, occasional moderate
    17 Light, frequently moderate
    18 Moderate, isolated severe
    19 Moderate, occasional severe
    20 Moderate, frequently severe
    21 Severe, isolated extreme
    22 Severe, occasional extreme
    23 Severe, frequently extreme
    63 Missing value

24-62 Reserved

0'11'031 - Extended degree of turbulence

 C 011031
     0 Nil, in cloud
     1 Light, in cloud
     2 Moderate, in cloud
     3 Severe, in cloud
     4 Nil, in clear air
     5 Light, in clear air
     6 Moderate, in clear air
     7 Severe, in clear air
     8 Nil, cloud/clear air not specified
     9 Light, cloud/clear air not specified
    10 Moderate, cloud/clear air not specified
    11 Severe, cloud/clear air not specified
    12 Extreme, in clear air
    13 Extreme, in cloud
    14 Extreme, cloud/clear air not specified
    15 Missing value

0'11'037 - Turbulence index

 C 011037
     0        ave < 0.1          peak < 0.1
     1        ave < 0.1   0.1 <= peak < 0.2
     2 0.1 <= ave < 0.2   0.1 <= peak < 0.2
     3        ave < 0.1   0.2 <= peak < 0.3
     4 0.1 <= ave < 0.2   0.2 <= peak < 0.3
     5 0.2 <= ave < 0.3   0.2 <= peak < 0.3
     6        ave < 0.1   0.3 <= peak < 0.4
     7 0.1 <= ave < 0.2   0.3 <= peak < 0.4
     8 0.2 <= ave < 0.3   0.3 <= peak < 0.4
     9 0.3 <= ave < 0.4   0.3 <= peak < 0.4
    10        ave < 0.1   0.4 <= peak < 0.5
    11 0.1 <= ave < 0.2   0.4 <= peak < 0.5
    12 0.2 <= ave < 0.3   0.4 <= peak < 0.5
    13 0.3 <= ave < 0.4   0.4 <= peak < 0.5
    14 0.4 <= ave < 0.5   0.4 <= peak < 0.5
    15        ave < 0.1   0.5 <= peak < 0.8
    16 0.1 <= ave < 0.2   0.5 <= peak < 0.8
    17 0.2 <= ave < 0.3   0.5 <= peak < 0.8
    18 0.3 <= ave < 0.4   0.5 <= peak < 0.8
    19 0.4 <= ave < 0.5   0.5 <= peak < 0.8
    20 0.5 <= ave < 0.8   0.5 <= peak < 0.8
    21        ave < 0.1   0.8 <= peak
    22 0.1 <= ave < 0.2   0.8 <= peak
    23 0.2 <= ave < 0.3   0.8 <= peak
    24 0.3 <= ave < 0.4   0.8 <= peak
    25 0.4 <= ave < 0.5   0.8 <= peak
    26 0.5 <= ave < 0.8   0.8 <= peak
    27 0.8 <= ave         0.8 <= peak
    28 Nil                Nil
    63 Missing value

29-62 Reserved

0'11'038 - Time of occurrence of peak eddy dissipation rate

Minutes prior to observation time (min)

 C 011038
     0        min <  1
     1   1 <= min <  2
     2   2 <= min <  3
     3   3 <= min <  4
     4   4 <= min <  5
     5   5 <= min <  6
     6   6 <= min <  7
     7   7 <= min <  8
     8   8 <= min <  9
     9   9 <= min < 10
    10  10 <= min < 11
    11  11 <= min < 12
    12  12 <= min < 13
    13  13 <= min < 14
    14  14 <= min < 15
    15 No timing information available
    31 Missing value

16-30 Reserved

0'11'039 - Extended Time of Occurrence of Peak Eddy Dissipation Rate

 C 011039
     0       min <  1
     1  1 <= min <  2
     2  2 <= min <  3
     3  3 <= min <  4
     4  4 <= min <  5
     5  5 <= min <  6
     6  6 <= min <  7
     7  7 <= min <  8
     8  8 <= min <  9
     9  9 <= min < 10
    10 10 <= min < 11
    11 11 <= min < 12
    12 12 <= min < 13
    13 13 <= min < 14
    14 14 <= min < 15
    60 No timing information available
    63 Missing value
 
15-59 As above to 59 <= min < 60 61-62 Reserved

Class 13


0'13'038 - Superadiabatic indicator

 C 013038
     0 Not superadiabatic
     1 Superadiabatic
     2 Reserved
     3 Missing value

0'13'039 - Terrain type (ice/snow)

 C 013039
     0 Sea ice
     1 Snow on land
     7 Missing value

2-6 Reserved

0'13'040 - Surface flag

 C 013040
     0 Land
     1 Reserved
     2 Near coast
     3 Ice
     4 Possible ice
     5 Ocean
     6 Coast
    15 Missing value

7-14 Reserved

0'13'041 - Pasquill-Gifford stability category

 C 013041
     1 A
     2 A-B
     3 B
     4 B-C
     5 C
     6 D
     7 E
     8 F
     9 G
    15 Missing value

10-14 Reserved

0'13'051 - Frequency group, precipitation

 C 013051
     0 Smaller than any value in the 30-year period
     1 In the first quintile
     2 In the second quintile
     3 In the third quintile
     4 In the fourth quintile
     5 In the fifth quintile
     6 Greater than any value in the 30-year period
    15 Missing value

7-14 Reserved

0'13'056 - Character and intensity of precipitation

 C 013056
     0 No precipitation
     1 Light intermittent
     2 Moderate intermittent
     3 Heavy intermittent
     4 Very heavy intermittent
     5 Light continuous
     6 Moderate continuous
     7 Heavy continuous
     8 Very heavy continuous
     9 Variable - alternatively light and heavy
    15 Missing value

10-14 Reserved

0'13'057 - Time of beginning or end of precipitation

 C 013057
     0 No precipitation
     1 Within the last hour
     2 1 to 2 hours ago
     3 2 to 3 hours ago
     4 3 to 4 hours ago
     5 4 to 5 hours ago
     6 5 to 6 hours ago
     7 6 to 8 hours ago
     8 8 to 10 hours ago
     9 More than 10 hours ago
    15 Missing value

10-14 Reserved

Class 15


0'15'025 - Type of pollutant

 C 015025
     0 Ozone
    11 Fine particulate matter (diameter < 2.5 microns)
    12 Fine particulate matter (diameter < 10 microns)
    15 Missing value

1-10, 13-14 Reserved

Class 19


0'19'001 - Type of synoptic feature

 C 019001
     0 Depression or low (extratropical)
     1 Tropical depression
     2 Tropical storm
     3 Severe tropical storm
     4 Typhoon
    10 Dust/sandstorm
    63 Missing value

5-9, 11-62 Reserved

Note: New local names for storms of various strenghts shall be added as necessary.


0'19'008 - Vertical extent of circulation

 C 019008
     0 Reserved
     1 Shallow (top of circulation below 700-hPa level)
     2 Medium (top between 700-hPa and 400-hPa level)
     3 Deep (top above 400-hPa level)
     7 Missing value

4-6 Reserved

0'19'010 - Method for tracking the centre of synoptic feature

 C 019010
     1 Minimum value of sea level pressure
     2 Maximum value of 850 hPa relative vorticity
    15 Missing value

3-14 Reserved

0'19'100 - Time interval to calculate the movement of the tropical cyclone

 C 019100
     3 During the preceding 15 minutes
     4 During the preceding 30 minutes
     5 During the preceding 1 hour
     6 During the preceding 2 hours
     7 During the preceding 3 hours
     8 During the preceding 6 hours
     9 During a period of more than 6 hours
    10 Undetermined
    15 Missing value

0-2, 11-14 Not used

0'19'101 - Accuracy of the position of the centre of the tropical cyclone

 C 019101
     0 Reserved
     1 Eye visible on radar scope, accuracy good (within 10 km)
     2 Eye visible on radar scope, accuracy fair (within 30 km)
     3 Eye visible on radar scope, accuracy poor (within 50 km)
     4 Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy good (within 10 km)
     5 Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy fair (within 30 km)
     6 Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy poor (within 50 km)
     7 Position of the centre outside the area covered by the radar scope, extrapolation by means of the spiral-band overlay
    10 Accuracy undetermined
    15 Missing value

   8-9 Reserved
 11-14 Not used

0'19'102 - Shape and definition of the eye of the tropical cyclone

 C 019102
     0 Circular
     1 Elliptical - the minor axis is at least 3/4 the length of the major axis, well defined
     2 Elliptical - the minor axis is less than 3/4 the length of the major axis, well defined
     3 Apparent double eye, well defined
     4 Other shape, well defined
     5 Ill defined
     6 Undetermined
     7 Missing

0'19'103 - Diameter of major axis of the eye of the tropical cyclone

 C 019103
     0 Less than 5 km
     1 5 to less than 10 km
     2 10 to less than 15 km
     3 15 to less than 20 km
     4 20 to less than 25 km
     5 25 to less than 30 km
     6 30 to less than 35 km
     7 35 to less than 40 km
     8 40 to less than 50 km
     9 50 km and greater
     10 Undetermined
    15 Missing value

11-14 Not used

0'19'104 - Change in character of the eye during the 30 minutes

 C 019104
     0 Eye has first become visible during the past 30 minutes
     1 No significant change in the characteristics or size of the eye
     2 Eye has become smaller with no other significant change in characteristics
     3 Eye has become larger with no other significant change in characteristics
     4 Eye has become less distinct with no significant change in size
     5 Eye has become less distinct and decreased in size
     6 Eye has become less distinct and increased in size
     7 Eye has become more distinct with no significant change in size
     8 Eye has become more distinct and decreased in size
     9 Eye has become more distinct and increased in size
     10 Change in character and size of eye cannot be determined
    15 Missing value

11-14 Not used

0'19'105 - Distance between the end of spiral band and the centre

 C 019105
     0 0 to less than 100 km
     1 100 to less than 200 km
     2 200 to less than 300 km
     3 300 to less than 400 km
     4 400 to less than 500 km
     5 500 to less than 600 km
     6 600 to less than 800 km
     7 800 km or more
    10 Doubtful or undetermined
    15 Missing value

8-9 Reserved
11-14 Not used

0'19'107 - Time interval over which the movement of the tropical cyclone has been calculated

 C 019107
     0 Less than 1 hour
     1 1 to less than 2 hours
     2 2 to less than 3 hours
     3 3 to less than 6 hours
     4 6 to less than 9 hours
     5 9 to less than 12 hours
     6 12 to less than 15 hours
     7 15 to less than 18 hours
     8 18 to less than 21 hours
     9 21 to less than 30 hours
    15 Missing value

10-14 Not used

0'19'108 - Accuracy of geographical position of the tropical cyclone

 C 019108
     0 Cyclone centre within 10 km of the transmitted position
     1 Cyclone centre within 20 km of the transmitted position
     2 Cyclone centre within 50 km of the transmitted position
     3 Cyclone centre within 100 km of the transmitted position
     4 Cyclone centre within 200 km of the transmitted position
     5 Cyclone centre within 300 km of the transmitted position
     6 Cyclone centre undetermined
     7 Missing value

0'19'109 - Mean diameter of the overcast cloud of the tropical cyclone

 C 019109
     0 Less than 1 degree of latitude
     1 1 degree to less than 2 degree of latitude
     2 2 degree to less than 3 degree of latitude
     3 3 degree to less than 4 degree of latitude
     4 4 degree to less than 5 degree of latitude
     5 5 degree to less than 6 degree of latitude
     6 6 degree to less than 7 degree of latitude
     7 7 degree to less than 8 degree of latitude
     8 8 degree to less than 9 degree of latitude
     9 9 degree of latitude or more
    10 Undetermined
    15 Missing value

11-14 Not used

0'19'110 - Apparent 24-hour change in intensity of the tropical cyclone

 C 019110
     0 Much weakening
     1 Weakening
     2 No change
     3 Intensification
     4 Strong Intensification
     9 Not observed previously
    10 Undetermined
    15 Missing value

   5-8 Reserved
 11-14 Not used

0'19'113 - Cloud pattern type of the DT-number

 C 019113
     1 Curved Band
     2 Shear
     3 Eye
     4 Banding Eye
     5 Central Dense Overcast (CDO)
     6 Embedded Center
     7 Center Cold Cover (CCC)
    15 Missing value

8-14 Reserved

0'19'117 - Cloud picture type of the PT-number

 C 019117
     1 A (Curved Band)
     2 B (CDO)
     3 C (Shear)
     7 Missing value

4-6 Reserved

0'19'119 - Type of the final T-number

 C 019119
     1 DT-number
     2 PT-number
     3 MET-number
     7 Missing value

4-6 Reserved

Class 20


0'20'003 - Present weather

For more details, please check the original WMO table.

* The expression "at the station" refers to a land station or a ship.

 C 020003
     0 Cloud development not observed or not observable
     1 Clouds generally dissolving or becoming less developed
     2 State of sky on the whole unchanged
     3 Clouds generally forming or developing
     4 Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes
     5 Haze
     6 Widespread dust in suspension in the air, not raised by wind at or near the station at the time of observation
     7 Dust or sand raised by wind at or near the station at the time of observation, but no well-developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, in the case of sea stations and coastal stations, blowing spray at the station
     8 Well-developed dust whirl(s) or sand whirl(s) seen at or near the station during the preceding hour or at the same time of observation, but no duststorm or sandstorm
     9 Duststorm or sandstorm within sight at the time of observation, or at the station during the preceding hour
    10 Mist
    11 Paches of shallow fog or ice at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea
    12 More or less continuous shallow fog or ice at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea
    13 Lightning visible, no thunder heard
    14 Precipitation within sight, not reaching the ground or the surface of the sea
    15 Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station
    16 Precipitation within sight, reaching the ground or the surface of the sea, near to, but not at the station
    17 Thunderstorm, but no precipitation at the time of observation
    18 Squalls at or within sight of the station during the preceding hour or at the time of observation
    19 Funnel cloud(s)* at or within sight of the station during the preceding hour or at the time of observation
    20 Drizzle (not freezing) or snow grains, not falling as shower(s) - during the preceding hour but not at the time of observation
    21 Rain (not freezing), not falling as shower(s) - during the preeceding hour but not at the time of observation
    22 Snow, not falling as shower(s) - during the preceding hour but not at the time of observation
    23 Rain and snow or ice pellets, not falling as shower(s) - during the preceding hour but not at the time of observation
    24 Freezing drizzle or freezing rain, not falling as shower(s) - during the preceding hour but not at the time of observation
    25 Shower(s) of rain - during the preceding hour but not at the time of observation
    26 Shower(s) of snow, or of rain and snow - during the preceding hour but not at the time of observation
    27 Shower(s) of hail**, or of rain and hail** - during the preceding hour but not at the time of observation
    28 Fog or ice fog - during the preceding hour but not at the time of observation
    29 Thunderstorm (with or without precipitation) - during the preceding hour but not at the time of observation
    30 Slight or moderate duststorm or sandstorm - has decreased during the preceding hour
    31 Slight or moderate duststorm or sandstorm - no appreciable change during the preceding hour
    32 Slight or moderate duststorm or sandstorm - has begun or has inceased during the preceding hour
    33 Severe duststorm or sandstorm - has decreased during the preceding hour
    34 Severe duststorm or sandstorm - no appreciable change during the preceding hour
    35 Severe duststorm or sandstorm - has begun or has increased during the preceding hour
    36 Slight or moderate drifting snow, generally low (below eye level)
    37 Heavy drifting snow, generally low (below eye level)
    38 Slight or moderate blowing snow, generally high (above eye level)
    39 Heavy blowing snow, generally high (above eye level)
    40 Fog or ice fog at a distance at the time of observation, but not at the station during the preceding hour, the fog or ice fog extending to a level above that of the observer
    41 Fog or ice fog in patches
    42 Fog or ice fog, sky visible, has become thinner during the preceding hour
    43 Fog or ice fog, sky invisible, has become thinner during the preceding hour
    44 Fog or ice fog, sky visible, no appreciable change during the preceding hour
    45 Fog or ice fog, sky invisible, no appreciable change during the preceding hour
    46 Fog or ice fog, sky visible, has begun or has become thicker during the preceding hour
    47 Fog or ice fog, sky invisible, has begun or has become thicker during the preceding hour
    48 Fog, depositing rime, sky visible
    49 Fog, depositing rime, sky invisible
    50 Drizzle, not freezing, intermittent, slight at time of observation
    51 Drizzle, not freezing, continuous, slight at time of observation
    52 Drizzle, not freezing, intermittent, moderate at time of observation
    53 Drizzle, not freezing, continuous, moderate at time of observation
    54 Drizzle, not freezing, intermittent, heavy (dense) at time of observation
    55 Drizzle, not freezing, continuous, heavy (dense) at time of observation
    56 Drizzle, freezing, slight
    57 Drizzle, freezing, moderate or heavy (dense)
    58 Drizzle and rain, slight
    59 Drizzle and rain, moderate or heavy
    60 Rain, not freezing, intermittent, slight at time of observation
    61 Rain, not freezing, continuous, slight at time of observation
    62 Rain, not freezing, intermittent, moderate at time of observation
    63 Rain, not freezing, continuous. moderate at time of observation
    64 Rain, not freezing, intermittent, heavy at time of observation
    65 Rain, not freezing, continuous, heavy at time of observation
    66 Rain, freezing, slight
    67 Rain, freezing, moderate or heavy
    68 Rain or drizzle and snow, slight
    69 Rain or drizzle and snow, moderate or heavy
    70 Intermittent fall of snowflakes, slight at time of observation
    71 Continuous fall of snowflakes, slight at time of observation
    72 Intermittent fall of snowflakes, moderate at time of observation
    73 Continuous fall of snowflakes, moderate at time of observation
    74 Intermittent fall of snowflakes, heavy at time of observation
    75 Continuous fall of snowflakes, heavy at time of observation
    76 Diamond dust (with or without fog)
    77 Snow grains (with or without fog)
    78 Isolated star-like snow crystals (with or without fog)
    79 Ice pellets
    80 Rain shower(s), slight
    81 Rain shower(s), moderate or heavy
    82 Rain shower(s), violent
    83 Shower(s) of rain and snow mixed, slight
    84 Shower(s) of rain and snow mixed, moderate or heavy
    85 Snow shower(s), slight
    86 Snow shower(s), moderate or heavy
    87 Shower(s) of snow pellets or small hail, with or without rain or rain and snow mixed - slight
    88 Shower(s) of snow pellets or small hail, with or without rain or rain and snow mixed - moderate or heavy
    89 Shower(s) of hail, with or without rain or rain and snow mixed, not associated with thunder - slight
    90 Shower(s) of hail, with or without rain or rain and snow mixed, not associated with thunder - moderate or heavy
    91 Slight rain at time of observation, thunderstorm during the preceding hour but not at time of observation
    92 Moderate or heavy rain at time of observation, thunderstorm during the preceding hour but not at time of observation
    93 Slight snow, or rain and snow mixed or hail** at time of observation, thunderstorm during the preceding hour but not at time of observation
    94 Moderate or heavy snow, or rain and snow mixed or hail** at time of observation, thunderstorm during preceding hour but not at time of observation
    95 Thunderstorm, slight or moderate, without hail**, but with rain and/or snow at time of observation - thunderstorm at time of observation
    96 Thunderstorm, slight or moderate, with hail** at time of observation - thunderstorm at time of observation
    97 Thunderstorm, heavy, without hail**, but with rain and/or snow at time of observation - thunderstorm at time of observation
    98 Thunderstorm combined with duststorm or sandstorm at time of observation - thunderstorm at time of observation
    99 Thunderstorm, heavy, with hail** at time of observation - thunderstorm at time of observation
   100 No significant weather observed
   101 Clouds generally dissolving or becoming less developed during the past hour
   102 State of sky on the whole unchanged during the past hour
   103 Clouds generally forming or developing during the past hour
   104 Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km
   105 Haze or smoke, or dust in suspension in the air, visibility less than 1 km
   110 Mist
   111 Diamond dust
   112 Distant lightning
   118 Squalls
   120 Fog
   121 PRECIPITATION
   122 Drizzle (not freezing) or snow grains
   123 Rain (not freezing)
   124 Snow
   125 Freezing drizzle or freezing rain
   126 Thunderstorm (with or without precipitation)
   127 BLOWING OR DRIFTING SNOW OR SAND
   128 Blowing or drifting snow or sand, visibility equal to, or greater than, 1 km
   129 Blowing or drifting snow or sand, visibility less than 1 km
   130 FOG
   131 Fog or ice fog, in patches
   132 Fog or ice fog, has become thinner during past hour
   133 Fog or ice fog, no appreciable change during past hour
   134 Fog or ice fog, has begun or become thicker during past hour
   135 Fog, depositing rime
   140 PRECIPITATION
   141 Precipitation, slight or moderate
   142 Precipitation, heavy
   143 Liquid precipitation, slight or moderate
   144 Liquid precipitation, heavy
   145 Solid precipitation, slight or moderate
   146 Solid precipitation, heavy
   147 Freezing precipitation, slight or moderate
   148 Freezing precipitation, heavy
   150 DRIZZLE
   151 Drizzle, not freezing, slight
   152 Drizzle, not freezing, moderate
   153 Drizzle, not freezing, heavy
   154 Drizzle, freezing, slight
   155 Drizzle, freezing, moderate
   156 Drizzle, freezing, heavy
   157 Drizzle and rain, slight
   158 Drizzle and rain, moderate or heavy
   160 RAIN
   161 Rain, not freezing, slight
   162 Rain, not freezing, moderate
   163 Rain, not freezing, heavy
   164 Rain, freezing, slight
   165 Rain, freezing, moderate
   166 Rain, freezing, heavy
   167 Rain (or drizzle) and snow, slight
   168 Rain (or drizzle) and snow, moderate or heavy
   170 SNOW
   171 Snow, slight
   172 Snow, moderate
   173 Snow, heavy
   174 Ice pellets, slight
   175 Ice pellets, moderate
   176 Ice pellets, heavy
   177 Snow grains
   178 Ice crystals
   180 SHOWER(S) or intermittent PRECIPITATION
   181 Rain shower(s) or intermittent rain, slight
   182 Rain shower(s) or intermittent rain, moderate
   183 Rain shower(s) or intermittent rain, heavy
   184 Rain shower(s) or intermittent rain, violent
   185 Snow shower(s) or intermittent snow, slight
   186 Snow shower(s) or intermittent snow, moderate
   187 Snow shower(s) or intermittent snow, heavy
   189 Hail
   190 THUNDERSTORM
   191 Thunderstorm, slight or moderate, with no precipitation
   192 Thunderstorm, slight or moderate, with rain showers and/or snow showers
   193 Thunderstorm, slight or moderate, with hail
   194 Thunderstorm, heavy, with no precipitation
   195 Thunderstorm, heavy, with rain showers and/or snow showers
   196 Thunderstorm, heavy, with hail
   199 Tornado
   204 Volcanic ash suspended in the air aloft
   206 Thick dust haze, visibility less than 1 km
   207 Blowing spray at the station
   208 Drifting dust (sand)
   209 Wall of dust or sand in distance (like habob)
   210 Snow haze
   211 Whiteout
   213 Lightning, cloud to surface
   217 Dry thunderstorm
   219 Tornado cloud (destructive) at or within sight of the station during preceding hour or at the time of observation
   220 Deposition of volcanic ash
   221 Deposition of dust or sand
   222 Deposition of dew
   223 Deposition of wet snow
   224 Deposition of soft rime
   225 Deposition of hard rime
   226 Deposition of hoar frost
   227 Deposition of glaze
   228 Deposition of ice crust (ice slick)
   230 Duststorm or sandstorm with temperature below 0°C
   239 Blowing snow, impossible to determine whether snow is falling or not
   241 Fog on sea
   242 Fog in valleys
   243 Arctic or Antarctic sea smoke
   244 Steam fog (sea, lake or river)
   245 Steam fog (land)
   246 Fog over ice or snow cover
   247 Dense fog visibility 60-90 m
   248 Dense fog visibility 30-60 m
   249 Dense fog visibility less than 30 m
   250 Drizzle, rate of fall less than 0.10 mm/h
   251 Drizzle, rate of fall 0.10 - 0.19 mm/h
   252 Drizzle, rate of fall 0.20 - 0.39 mm/h
   253 Drizzle, rate of fall 0.40 - 0.79 mm/h
   254 Drizzle, rate of fall 0.80 - 1.59 mm/h
   255 Drizzle, rate of fall 1.60 - 3.19 mm/h
   256 Drizzle, rate of fall 3.20 - 6.39 mm/h
   257 Drizzle, rate of fall 6.4 mm/h or more
   259 Drizzle and snow
   260 Rain, rate of fall less than 1.0 mm/h
   261 Rain, rate of fall 1.0 - 1.9 mm/h
   262 Rain, rate of fall 2.0 - 3.9 mm/h
   263 Rain, rate of fall 4.0 - 7.9 mm/h
   264 Rain, rate of fall 8.0 - 15.9 mm/h
   265 Rain, rate of fall 16.0 - 31.9 mm/h
   266 Rain, rate of fall 32.0 - 63.9 mm/h
   267 Rain, rate of fall 64.0 mm/h or more
   270 Snow, rate of fall less than 1.0 cm/h
   271 Snow, rate of fall 1.0 - 1.9 cm/h
   272 Snow, rate of fall 2.0 - 3.9 cm/h
   273 Snow, rate of fall 4.0 - 7.9 cm/h
   274 Snow, rate of fall 8.0 - 15.9 cm/h
   275 Snow, rate of fall 16.0 - 31.9 cm/h
   276 Snow, rate of fall 32.0 - 63.9 cm/h
   277 Snow, rate of fall 64.0 cm/h or more
   278 Snow or ice cristal precipitation from a clear sky
   279 Wet snow, freezing on contact
   280 Precipitation of rain
   281 Precipitation of rain, freezing
   282 Precipitation of rain and snow mixed
   283 Precipitation of snow
   284 Precipitation of snow pellets or small hail
   285 Precipitation of snow pellets or small hail, with rain
   286 Precipitation of snow pellets or small hail, with rain and snow mixed
   287 Precipitation of snow pellets or small hail, with snow
   288 Precipitation of hail
   289 Precipitation of hail, with rain
   290 Precipitation of hail, with rain and snow mixed
   291 Precipitation of hail, with snow
   292 Shower(s) or thunderstorm over sea
   293 Shower(s) or thunderstorm over mountains
   508 No significant phenomenon to report, present and past weather omitted
   509 Not observation, data not available, present and past weather omitted
   510 Present and past weather missing, but expected
   511 Missing value
 
106-109, 113-117, 119, 136-139, 149, 159, 169, 179, 188, 197-198, 300-507 Reserved 200-203, 205, 212, 214-216, 218, 229, 231-238, 240, 258, 268-269, 294-299 Not used

* Tornado cloud or water-spout.
** Hail, small hail, snow pellets.

Notes:

  1. The middle portion of this code table (code figures 100-199) includes terms on several levels to cover simple and increasingly complex automatic stations.
  2. Generic terms for weather (e.g. fog, drizzle) are intended for use at automatic stations capable of determining types of weather but no other information. Generic terms are included in the code table using all capital letters.
  3. Code figures for generic precipitation (code figures 140-148) are arranged in order of increasing complexity. For example, a very simple station that can sense only the presence or absence of precipitation would use code figure 140 (precipitation). At the next level, an automatic station capable of sensing amount but not type would use code figure 141 or 142. An automatic station capable of sensing gross type (liquid, solid, freezing) and amount would use code figures 143-148. An automatic station capable of reporting actual types of precipitation (e.g. drizzle rain), but not the amount, would use the appropriate whole decile number (e.g. 150 for generic drizzle, 160 for generic rain).

0'20'004 - Past weather (1)

 C 020004
     0 Cloud covering 1/2 or less of the sky throughout the appropriate period
     1 Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period
     2 Cloud covering more than 1/2 of the sky throughout the appropriate period
     3 Sandstorm, duststorm or blowing snow
     4 Fog or ice or thick haze
     5 Drizzle
     6 Rain
     7 Snow, or rain and snow mixed
     8 Shower(s)
     9 Thunderstorm(s) with or without precipitation
    10 No significant weather observed
    11 VISIBILITY REDUCED
    12 Blowing phenomena, visibility reduced
    13 FOG
    14 PRECIPITATION
    15 Drizzle
    16 Rain
    17 Snow or ice pellets
    18 Showers or intermittent precipitation
    19 Thunderstorm
    31 Missing value

20-30 Reserved

Notes:

  1. The weather descriptions in code figures 10 to 19 are progressively complex, to accommodate the different levels of weather discrimination capability of various automatic stations. Stations having only basic sensing capability may use the lower code figures and basic generic descriptions (shown in capital letters). Stations with progressively higher discrimination capability shall use the more detailed descriptions (higher codes).

0'20'005 - Past weather (2)

 C 020005
     0 Cloud covering 1/2 or less of the sky throughout the appropriate period
     1 Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period
     2 Cloud covering more than 1/2 of the sky throughout the appropriate period
     3 Sandstorm, duststorm or blowing snow
     4 Fog or ice or thick haze
     5 Drizzle
     6 Rain
     7 Snow, or rain and snow mixed
     8 Shower(s)
     9 Thunderstorm(s) with or without precipitation
    10 No significant weather observed
    11 VISIBILITY REDUCED
    12 Blowing phenomena, visibility reduced
    13 FOG
    14 PRECIPITATION
    15 Drizzle
    16 Rain
    17 Snow or ice pellets
    18 Showers or intermittent precipitation
    19 Thunderstorm
    31 Missing value

20-30 Reserved

Notes:

  1. The weather descriptions in code figures 10 to 19 are progressively complex, to accommodate the different levels of weather discrimination capability of various automatic stations. Stations having only basic sensing capability may use the lower code figures and basic generic descriptions (shown in capital letters). Stations with progressively higher discrimination capability shall use the more detailed descriptions (higher codes).

0'20'006 - Flight Rules

 C 020006
     0	Low Instrument Flight Rules - Ceiling < 500 feet and/or Visibility < 1 mile
     1	Instrument Flight Rules - Ceiling < 1000 feet and/or Visibility < 3 miles
     2	Marginal Visual Flight Rules –  1000 feet <= Ceiling < 3000 feet and/or 3 miles <= Visibility < 5 miles
     3	Visual Flight Rules - Ceiling >= 3000 feet and/or Visibility >= 5 miles
     7	Missing value

4-6 Reserved

0'20'008 - Cloud distribution for aviation

 C 020008
     0 Sky clear
     1 Few
     2 Scattered
     3 Broken
     4 Overcast
     5 Reserved
     6 Scattered/broken     (Many forecasts use scattered/broken followed by cloud type(s))
     7 Broken/overcast      (Many forecasts use broken/overcast followed by cloud type(s))
     8 Isolated             (Used on aviation charts to describe the cloud type Cb)
     9 Isolated embedded    (Used on aviation charts to describe the cloud type Cb)
    10 Occasional           (Used on aviation charts to describe the cloud type Cb)
    11 Occasional embedded  (Used on aviation charts to describe the cloud type Cb)
    12 Frequent             (Used on aviation charts to describe the cloud type Cb)
    13 Dense                (Used on aviation charts to describe cloud that would cause sudden changes in visibility (less than 1000 m))
    14 Layers
    15 Obscured (OBSC)
    16 Embedded (EMBD)
    17 Frequent embedded
    31 Missing
 
18-30 Reserved

0'20'009 - General Weather Indicator (TAF/METAR)

 C 020009
     0 Reserved
     1 NSC Nil Significant Cloud
     2 CAVOK
     3 SKC Sky Clear
     4 NSW Nil Significant Weather
    15 Missing

5-14 Reserved

0'20'011 - Cloud amount

 C 020011
     0 0 oktas (0/10)
     1 1 okta or less, but not zero (1/10 or less, but not zero)
     2 2 oktas (2/10 - 3/10)
     3 3 oktas (4/10)
     4 4 oktas (5/10)
     5 5 oktas (6/10)
     6 6 oktas (7/10 - 8/10)
     7 7 oktas or more, but not 8 oktas (9/10 or more, but not 10/10)
     8 8 oktas (10/10)
     9 Sky obscured by fog and/or other meteorological phenomena
    10 Sky partially obscured by fog and/or other meteorological phenomena
    11 Scattered
    12 Broken
    13 Few
    14 Reserved
    15 Cloud cover is indiscernible for reasons other than fog or other meteorological phenomena, or observation is not made

Notes:

  1. For use of code figure 15, see Regulation 12.1.4.
  2. "Clear" and "overcast" are coded by 0 and 8, respectively.

0'20'012 - Cloud type

 C 020012
     0 Cirrus (Ci)
     1 Cirrocumulus (Cc)
     2 Cirrostratus (Cs)
     3 Altocumulus (Ac)
     4 Altostratus (As)
     5 Nimbostratus (Ns)
     6 Stratocumulus (Sc)
     7 Stratus (St)
     8 Cumulus (Cu)
     9 Cumulonimbus (Cb)
    10 No CH clouds
    11 Cirrus fibratus, sometimes uncinus, not progressively invading the sky
    12 Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus
    13 Cirrus spissatus cumulonimbogenitus
    14 Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole
    15 Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon
    16 Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered
    17 Cirrostratus covering the whole sky
    18 Cirrostratus not progressively invading the sky and not entirely covering it
    19 Cirrocumulus alone, or Cirrocumulus predominant among the CH clouds
    20 No CM clouds
    21 Altostratus translucidus
    22 Altostratus opacus or Nimbostratus
    23 Altocumulus translucidus at a single level
    24 Patches (often lenticular) of Altocumulus translucidus, continually changing and occuring at one or more levels
    25 Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole
    26 Altocumulus cumulogenitus (or cumulonimbogenitus)
    27 Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus
    28 Altocumulus castellanus or floccus
    29 Altocumulus of chaotic sky, generally at several levels
    30 No CL clouds
    31 Cumulus humilis or Cumulus fractus other than of bad weather*, or both
    32 Cumulus mediocris or congestus, Towering Cumulus (TCU), with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level
    33 Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus
    34 Stratocumulus cumulogenitus
    35 Stratocumulus other than Stratocumulus cumulogenitus
    36 Stratus nebulosus or Stratus fractus other than of bad weather*, or both
    37 Stratus fractus or Cumulus fractus of bad weather*, or both (pannus), usually below Altostratus or Nimbostratus
    38 Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels
    39 Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus
    40 CH
    41 CM
    42 CL
    59 Cloud not visible owing to darkness, fog, duststorm, sandstorm, or other analogous phenomena
    60 CH clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of a continuous layer of lower clouds
    61 CM clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of a continuous layer of lower clouds
    62 CL clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena
    63 Missing value

43-58 Reserved

* "Bad weather" denotes the conditions which generally exist during precipitation and a short time before and after.


0'20'017 - Cloud top description

 C 020017
     0 Isolated cloud fragments of cloud
     1 Continuous cloud, flat tops
     2 Broken cloud - small breaks, flat tops
     3 Broken cloud - large breaks, flat tops
     4 Continuous cloud - undulating tops
     5 Broken cloud - small breaks, undulated tops
     6 Broken cloud - large breaks, undulated tops
     7 Continuous or almost continuous waves with towering clouds above the top of the layer
     8 Groups of waves with towering clouds above the top of the layer
     9 Two or more layers at different levels
    15 Missing value

10-14 Reserved

0'20'018 - Tendency of runway visual range

 C 020018
     0 Increasing (U)
     1 Decreasing (D)
     2 No distinct change (N)
     3 Missing value

0'20'021 - Type of precipitation

 F 020021
     1 Precipitation-unknown type
     2 Liquid precipitation not freezing
     3 Liquid freezing precipitation
     4 Drizzle
     5 Rain
     6 Solid precipitation
     7 Snow
     8 Snow grains
     9 Snow pellets
    10 Ice pellets
    11 Ice crystals
    12 Diamond dust
    13 Small hail
    14 Hail
    15 Glaze
    16 Rime
    17 Soft rime
    18 Hard rime
    19 Clear ice
    20 Wet snow
    21 Hoar frost
    22 Dew
    23 White dew
All 30 Missing value
 
24-29 Reserved

Note: Mixed precipitation is indicated by setting to one the bits of all the observed single types of precipitation.


0'20'022 - Character of precipitation

 C 020022
     0 No precipitation
     1 Continuous
     2 Intermittent
     3 Shower
     4 Not reaching ground
     5 Deposition
    15 Missing value

6-14 Reserved

0'20'023 - Other weather phenomena

 F 020023
     1 Dust/sand whirl
     2 Squalls
     3 Sandstorm
     4 Duststorm
     5 Lightning - cloud to surface
     6 Lightning - cloud to cloud
     7 Lightning - distant
     8 Thunderstorm
     9 Funnel Cloud not touching surface
    10 Funnel cloud touching surface
    11 Spray
    12 Water-spout
    13 Wind shear
All 18 Missing value
 
14-17 Reserved

0'20'024 - Intensity of phenomena

 C 020024
     0 No phenomena
     1 Light
     2 Moderate
     3 Heavy
     4 Violent
     5 Severe
     6 Reserved
     7 Missing value

0'20'025 - Obscuration

 F 020025
     1 Fog
     2 Ice fog
     3 Steam fog
     7 Mist
     8 Haze
     9 Smoke
    10 Volcanic ash
    11 Dust
    12 Sand
    13 Snow
    14 Cloud
    15 Precipitation
All 21 Missing value
 
4-6 Reserved 16-20 Reserved

0'20'026 - Character of obscuration

 C 020026
     0 No change
     1 Shallow
     2 Patches
     3 Partial
     4 Freezing
     5 Low drifting
     6 Blowing
     7 Increasing
     8 Decreasing
     9 In suspension in the air
    10 Wall
    11 Dense
    12 Whiteout
    13 Reserved
    14 Reserved
    15 Missing value

0'20'027 - Phenomena occurrence

 F 020027
     1 At time of observation
     2 In past hour
     3 In time period for past weather W1W2
     4 In time period specified
     5 Reserved
     6 Below station level
     7 At the station
     8 In the vicinity
All 9 Missing value

Note: Phenomenon in this flag table means any phenomenon, including precipitation and obscuration.


0'20'028 - Expected change in intensity

 C 020028
     0 No change (NC)
     1 Forecast to weaken (WKN)
     2 Forecast to intensify (INTSF)
     7 Missing value

3-6 Reserved

0'20'029 - Rain flag

 C 020029
     0 No rain
     1 Rain
     2 Reserved
     3 Missing value

0'20'032 - Rate of ice accretion

 C 020032
     0 Ice not building up
     1 Ice building up slowly
     2 Ice building up rapidly
     3 Ice melting or breaking up slowly
     4 Ice melting or breaking up rapidly
     5 Reserved
     6 Reserved
     7 Missing value

0'20'033 - Cause of ice accretion

 F 020033
     1 Icing from ocean spray
     2 Icing from fog
     3 Icing from rain
 All 4 Missing value

0'20'034 - Sea ice concentration

 C 020034
     0 No sea ice in sight
     1 Ship in open lead more than 1.0 nautical mile wide, or ship in fast ice with boundary beyond limit of visibility
     2 Sea ice present in concentration less than 3/10 (3/8), open water or very open pack ice, sea ice concentration is uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     3 4/10 to 6/10 (3/8 to less than 6/8), open pack ice, sea ice concentration is uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     4 7/10 to 8/10 (6/8 to less than 7/8), close pack ice, sea ice concentration is uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     5 9/10 or more, but not 10/10 (7/8 to less than 8/8), very close pack ice, sea ice concentration is uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     6 Strips and patches of pack ice with open water between, sea ice concentration is not uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     7 Strips and patches of close or very close pack ice with areas of lesser concentration between, sea ice concentration is not uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     8 Fast ice with open water, very open or open pack ice to seaward of the ice boundary, sea ice concentration is not uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
     9 Fast ice with close or very close pack ice to seaward of the ice boundary, sea ice concentration is not uniform in the observation area, ship in ice or within 0.5 nautical mile of ice edge
    14 Unable to report, because of darkness, lack of visibility, or because ship is more than 0.5 nautical mile away from ice edge
    31 Missing value

10-13, 15-30 Reserved

0'20'035 - Amount and type of ice

 C 020035
     0 No ice of land origin
     1 1-5 icebergs, no growlers or bergy bits
     2 6-10 icebergs, no growlers or bergy bits
     3 11-20 icebergs, no growlers or bergy bits
     4 Up to and including 10 growlers and bergy bits - no icebergs
     5 More than 10 growlers and bergy bits - no icebergs
     6 1-5 icebergs, with growlers and bergy bits
     7 6-10 icebergs, with growlers and bergy bits
     8 11-20 icebergs, with growlers and bergy bits
     9 More than 20 icebergs, with growlers and bergy bits - a major hazard to navigation
    14 Unable to report, because of darkness, lack of visibility or because only sea ice is visible
    15 Missing value

10-13 Reserved

0'20'036 - Ice situation

 C 020036
     0 Ship in open water with floating ice in sight
     1 Ship in easily penetrable ice; conditions improving
     2 Ship in easily penetrable ice; conditions not changing
     3 Ship in easily penetrable ice; conditions worsening
     4 Ship in ice difficult to penetrate; conditions improving
     5 Ship in ice difficult to penetrate; conditions not changing
     6 Ship in ice difficult to penetrate and conditions worsening. Ice forming and floes freezing together
     7 Ship in ice difficult to penetrate and conditions worsening. Ice under slight pressure
     8 Ship in ice difficult to penetrate and  conditions worsening. Ice under moderate or severe pressure
     9 Ship in ice difficult to penetrate and conditions worsening. Ship beset
    30 Unable to report, because of darkness or lack of visibility
    31 Missing value

10-29 Reserved

0'20'037 - Ice development

 C 020037
     0 New ice only (frazil ice, grease ice, slush, shuga)
     1 Nilas or ice rind, less than 10 cm thick
     2 Young ice (grey ice, grey-white ice), 10-30 cm thick
     3 Predominantly new and/or young ice with some first-year ice
     4 Predominantly thin first-year ice with some new and/or young ice
     5 All thin first-year ice (30-70 cm thick)
     6 Predominantly medium first-year ice (70-120 cm thick) and thick first-year ice (>120 cm thick) with some thinner (younger) first-year ice
     7 All medium and thick first-year ice
     8 Predominantly medium and thick first-year ice with some old ice (usually more than 2 metres thick)
     9 Predominantly old ice
    30 Unable to report, because of darkness, lack of visibility or because only ice of land origin is visible or because ship is more than 0.5 nautical mile away from ice edge
    31 Missing value

10-29 Reserved

0'20'040 - Evolution of drift of snow

 C 020040
     0 Drift snow ended before the hour of observation
     1 Intensity diminishing
     2 No change
     3 Intensity increasing
     4 Continues, apart from interruption lasting less than 30 minutes
     5 General drift snow has become drift snow near the ground
     6 Drift snow near the ground has become general drift snow
     7 Drift snow has started again after an interruption of more than 30 minutes
    15 Missing value

8-14 Reserved

0'20'041 - Airframe icing

 C 020041
     0 No icing
     1 Light icing
     2 Light icing in cloud
     3 Light icing in precipitation
     4 Moderate icing
     5 Moderate icing in cloud
     6 Moderate icing in precipitation
     7 Severe icing
     8 Severe icing in cloud
     9 Severe icing in precipitation
    10 Trace of icing
    11 Trace of icing in cloud
    12 Trace of icing in precipitation
    13 Reserved
    14 Reserved
    15 Missing value

0'20'042 - Airframe icing present

 C 020042
     0 No icing
     1 Icing present
     2 Reserved
     3 Missing value

0'20'045 - Supercooled large droplet (SLD) conditions

 C 020045
     0 No SLD conditions present
     1 SLD conditions present
     2 Reserved
     3 Missing value

0'20'048 - Evolution of feature

 C 020048
     0 Stability
     1 Diminution
     2 Intensification
     3 Unknown
    15 Missing value

4-14 Reserved

0'20'050 - Cloud index

 C 020050
     0 Reserved
     1 1st low cloud
     2 2nd low cloud
     3 3rd low cloud
     4 1st medium cloud
     5 2nd medium cloud
     6 3rd medium cloud
     7 1st high cloud
     8 2nd high cloud
   255 Missing value

9-254 Reserved

0'20'055 - State of sky in tropics

 C 020055
     0 Cumulus, if any, are quite small; generally less than 2/8 coverage, except on windward slopes of elevated terrain; average width of cloud is at least as great as its vertical thickness
     1 Cumulus of intermediate size with cloud cover less than 5/8; average cloud width is more than its vertical thickness; towers are vertical with little or no evidence of precipitation, except along slopes of elevated terrain; a general absence of middle and upper clouds
     2 Swelling Cumulus with rapidly growing tall turrets which decrease in size with height and whose tops tend to separate from the longer cloud body and evaporate within minutes of the separation
     3 Swelling Cumulus with towers having a pronounced tilt in a downwind direction; vertical cloud thickness is more than 11/2 times that of its average width
     4 Swelling Cumulus with towers having a pronounced tilt in an upwind direction; vertical cloud thickness is more than 11/2 times that of its average width
     5 Tall Cumulus congestus with vertical thickness more than twice the average width; not organized in clusters or lines; one or more layers of clouds extend out from the cloud towers, although no continuous cloud layers exist
     6 Isolated Cumulonimbus or large clusters of Cumulus turrets separated by wide areas in which clouds are absent; cloud bases are generally dark with showers observed in most cells; some scattered middle and upper clouds may be present; individual Cumulus cells are one to two times higher than they are wide
     7 Numerous Cumulus extending through the middle troposphere with broken to overcast sheets of middle clouds and/or Cirrostratus; Cumulus towers do not decrease generally in size with height; ragged dark cloud bases with some showers present
     8 Continuous dense middle clouds and/or Cirrostratus cloud sheets with some large isolated Cumulonimbus or Cumulus congestus clouds penetrating these sheets; light rain occasionally observed from the Altostratus; Cumulonimbus bases ragged and dark with showers visible
     9 Continuous sheets of middle clouds and/or Cirrostratus with Cumulonimbus and Cumulus congestus in organized lines or cloud bands; rain is generally observed from Altostratus sheets and heavy showers from Cumulonimbus; wind has a squally character
    10 State of sky unknown or not described by any of the above
    15 Missing value

11-14 Reserved

Note : In the event of obscuration of clouds due to heavy rain, the observer should use code 5 or 8. Code 5 should be used if the rain is localized or is brief in duration; Code 8 should be used if the rain is widespread or lasts for longer periods of time.


0'20'056 - Cloud phase

 C 020056
     0 Unknown
     1 Water
     2 Ice
     3 Mixed
     7 Missing value

4-6 Reserved

0'20'062 - State of the ground (with or without snow)

 C 020062
     0 Surface of ground dry (without cracks and no appreciable amount of dust or loose sand)
     1 Surface of ground moist
     2 Surface of ground wet (standing water in small or large pools on surface)
     3 Flooded
     4 Surface of ground frozen
     5 Glaze on ground
     6 Loose dry dust or sand not covering ground completely
     7 Thin cover of loose dry dust or sand covering ground completely
     8 Moderate or thick cover of loose dry dust or sand covering ground completely
     9 Extremely dry with cracks
    10 Ground predominantly covered by ice
    11 Compact or wet snow (with or without ice) covering less than one-half of the ground
    12 Compact or wet snow (with or without ice) covering at least one-half of the ground but ground not completely covered
    13 Even layer of compact or wet snow covering ground completely
    14 Uneven layer of compact or wet snow covering ground completely
    15 Loose dry snow covering less than one-half of the ground
    16 Loose dry snow covering at least one-half of the ground but ground not completely covered
    17 Even layer of loose dry snow covering ground completely
    18 Uneven layer of loose dry snow covering ground completely
    19 Snow covering ground completely; deep drifts
    31 Missing value

20-30 Reserved

Notes:

  1. The definitions in code numbers 0 to 2 and 4 apply to representative bare ground and numbers 3, 5 to 9 and 10 to 19 to an open representative area.
  2. In all instances the highest code figures applicable are to be reported.
  3. In the above code table, whenever reference is made to ice, it also includes solid precipitation other than snow.

0'20'063 - Special phenomena

(To be developed)


0'20'071 - Accuracy of fix and rate of atmospherics

Accuracy of fix (estimated error) - Repetition rate

 C 020071
     0 No assessment                        No assessment
     1 Less than 50 km                      Less than 1 per second
     2 Between 50 and 200 km                Less than 1 per second
     3 More than 200 km                     Less than 1 per second
     4 Less than 50 km                      1 or more per second
     5 Between 50 and 200 km                1 or more per second
     6 More than 200 km                     1 or more per second
     7 Less than 50 km                      Rate so rapid number cannot be counted
     8 Between 50 and 200 km                Rate so rapid number cannot be counted
     9 More than 200 km                     Rate so rapid number cannot be counted
    15 Missing value

10-14 Reserved

0'20'085 - General condition of runway

 C 020085
     0	Cleared (CLRD//)
     1	All runways closed (SNOCLO)
    15	Missing value

2-14 Reserved

0'20'086 - Runway deposits

 C 020086
     0	Clear and dry
     1	Damp
     2	Wet with water patches
     3	Rime and frost covered (depth normally less than 1 mm)
     4	Dry snow
     5	Wet snow
     6	Slush
     7	Ice
     8	Compacted or rolled snow
     9	Frozen ruts or ridges
    15	Missing or not reported (e.g. due to runway clearance in progress)

10-14 Reserved

0'20'087 - Runway contamination

 C 020087
     0	Reserved
     1	Less than 10% of runway covered
     2	11% to 25% of runway covered
     5	25% to 50% of runway covered
     9	51% to 100% of runway covered
    15	Missing or not reported (e.g. due to runway clearance in progress)

3-4 Reserved, 6-8 Reserved, 10-14 Reserved

0'20'089 - Runway friction coefficient

 C 020089
     0	0.00
     1	0.01
     2	0.02
     3	0.03
     4	0.04
     5	0.05
     6	0.06
     7	0.07
     8	0.08
     9	0.09
    10	0.10
    11	0.11
    12	0.12
    13	0.13
    14	0.14
    15	0.15
    16	0.16
    17	0.17
    18	0.18
    19	0.19
    20	0.20
    21	0.21
    22	0.22
    23	0.23
    24	0.24
    25	0.25
    26	0.26
    27	0.27
    28	0.28
    29	0.29
    30	0.30
    31	0.31
    32	0.32
    33	0.33
    34	0.34
    35	0.35
    36	0.36
    37	0.37
    38	0.38
    39	0.39
    40	0.40
    41	0.41
    42	0.42
    43	0.43
    44	0.44
    45	0.45
    46	0.46
    47	0.47
    48	0.48
    49	0.49
    50	0.50
    51	0.51
    52	0.52
    53	0.53
    54	0.54
    55	0.55
    56	0.56
    57	0.57
    58	0.58
    59	0.59
    60	0.60
    61	0.61
    62	0.62
    63	0.63
    64	0.64
    65	0.65
    66	0.66
    67	0.67
    68	0.68
    69	0.69
    70	0.70
    71	0.71
    72	0.72
    73	0.73
    74	0.74
    75	0.75
    76	0.76
    77	0.77
    78	0.78
    79	0.79
    80	0.70
    81	0.71
    82	0.72
    83	0.73
    84	0.74
    85	0.75
    86	0.76
    87	0.77
    88	0.78
    89	0.89
    90	0.90
    91	Braking action poor
    92	Braking action medium to poor
    93	Braking action medium
    94	Braking action medium to good
    95	Braking action good
    99	Unreliable
   127	Missing, not reported and/or runway not operational.

96-98 Reserved, 100-126 Reserved

0'20'090 - Special clouds

 C 020090
     0 Reserved
     1 Nacreous clouds
     2 Noctilucent clouds
     3 Clouds from waterfalls
     4 Clouds from fires
     5 Clouds from volcanic eruptions
    15 Missing

6-14 Reserved

0'20'101 - Locust (acridian) name

 C 020101
     0 Reserved
     1 Schistocerca gregaria
     2 Locusta migratoria
     3 Nomadacris septemfasciata
     4 Oedaleus senegalensis
     5 Anracridium spp
     6 Other locusts
     7 Other grasshoppers
     8 Other crickets
     9 Spodoptera exempt
    15 Missing value

10-14 Reserved

0'20'102 - Locust (maturity) color

 C 020102
     0 Green
     1 Green or black
     2 Black
     3 Yellow and black
     4 Straw/grey
     5 Pink
     6 Dark red/brown
     7 Mixed red and yellow
     8 Yellow
     9 Other
    15 Missing value

10-14 Reserved

0'20'103 - Stage of development of locusts

 C 020103
     0 Hoppers (nymphs, larvae), stage 1
     1 Hoppers (nymphs, larvae), stage 2 or mixed 1, 2 instars (stages)
     2 Hoppers (nymphs, larvae), stage 3 or mixed 2, 3 instars
     3 Hoppers (nymphs, larvae), stage 4 or mixed 3, 4 instars
     4 Hoppers (nymphs, larvae), stage 5 or mixed 4, 5 instars
     5 Hoppers (nymphs, larvae), stage mixed, all or many instars
     6 Fledglings (wings too soft for sustained flight)
     7 Immature adults
     8 Mixed maturity adults
     9 Mature adults
    15 Missing value

10-14 Reserved

0'20'104 - Organizational state of swarm or band of locusts

 C 020104
     0 Hoppers only, mainly in bands or clusters
     1 Winged adults in the vicinity more than 10 kilometres from point of observation
     2 Locusts in flight, a few seen at the station
     3 Locusts at the station, most of them on the ground
     4 Locusts, some on ground and others in flight at a height less than 10 metres
     5 Locusts, some on ground and others in flight at a height greater than10 metres
     6 Locusts, most in flight at a height less than 10 metres
     7 Locusts, most in flight at a height greater than 10 metres
     8 Locusts, all over inflicting severe damage to vegetation, no extermination operation
     9 Locusts, all over inflicting severe damage to vegetation, extermination operation in progress
    15 Missing value

10-14 Reserved

0'20'105 - Size of swarm or band of locusts and duration of passage of swarm

  C 020105
  When 0 20 104 (Organizational state of swarm or band of locusts) = 0
     0 Reserved
     1 Area covered by isolated bands < 10 m²
     2 Area covered by isolated bands 10 - 100 m²
     3 Area covered by isolated bands 100 - 1000 m²
     4 Area covered by isolated bands 1000 - 10000 m²
     5 Area covered by isolated bands 1 - 10 ha
     6 Area covered by isolated bands > 10 ha
     7 Area covered by dispersed bands < 100 km²
     8 Area covered by dispersed bands 100 - 1000 km²
     9 Area covered by dispersed bands > 1000 km²
 10-14 Reserved
    15 Missing value

 When 0 20 104 (Organizational state of swarm or band of locusts) = 1 to 9
     0 Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals
       visible simultaneously, duration of passage less than 1 hour ago
     1 Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals
       visible simultaneously, duration of passage 1 to 6 hours ago
     2 Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals
       visible simultaneously, duration of passage over 6 hours ago
     3 Medium swarm or scattered adults, several visible simultaneously, duration of
       passage less than 1 hour ago
     4 Medium swarm or scattered adults, several visible simultaneously, duration of
       passage 1 to 6 hours ago
     5 Medium swarm or scattered adults, several visible simultaneously, duration of
       passage over 6 hours ago
     6 Large swarm or isolated adults, seen singly, duration of passage less than 1 hour
       ago
     7 Large swarm or isolated adults, seen singly, duration of passage 1 to 6 hours ago
     8 Large swarm or isolated adults, seen singly, duration of passage over 6 hours ago
     9 More than one swarm of locusts
    10 Size of swarm and/or duration of passage not determined owing to darkness or
       similar phenomena
 11-14 Reserved
    15 Missing value

0'20'106 - Locust population density

 C 020106
     0 Reserved
     1 Thin density swarm (swarm visible only when near enough for individual locusts to be discerned)
     2 Medium density swarm
     3 Dense swarm (obscuring nearby features, e.g. trees)
     4 Isolated hoppers seen singly
     5 Scattered hoppers, several visible simultaneously
    15 Missing value

6-14 Reserved

0'20'107 - Direction of movement of locust swarm

 C 020107
     0 Reserved
     1 Generally in the direction NE
     2 Generally in the direction E
     3 Generally in the direction SE
     4 Generally in the direction S
     5 Generally in the direction SW
     6 Generally in the direction W
     7 Generally in the direction NW
     8 Generally in the direction N
     9 Specific direction indeterminable
    15 Missing value

10-14 Reserved

0'20'108 - Extent of vegetation

 C 020108
     0 Bare ground
     1 Dry, presence of few and isolated shrubs
     2 Sparse vegetation (sprouting)
     3 Dense vegetation (sprouting)
     4 Sparse vegetation (growing)
     5 Dense vegetation (growing)
     6 Sparse vegetation in flower
     7 Dense vegetation in flower
    15 Missing value

8-14 Reserved

0'20'119 - Lightning discharge polarity

 C 020119
     0 Not defined
     1 Positive
     2 Negative
     3 Missing

0'20'124 - Lightning stroke or flash

 C 020124
     0 Not defined
     1 Lightning stroke
     2 Lightning flash, by manual observation, or if equipment insensitive to stroke resolution
     3 Missing value

Class 21


0'21'066 - Wave scatterometer product confidence data

 F 021066
     1 Processing equipment not working
     2 Equipment failed
     3 PRF code changed during image generation
     4 Sampling window changd during image generation
     5 Gain changed during image generation
     6 Chirp replica exceeds specified value
     7 Input data mean and standard deviation of in-phase and quadrature out of range
     8 Doppler centroid confidence > MMCC value
     9 Doppler centroid absolute value > PRF/2
    10 Doppler ambiguity confidence < MMCC value
    11 Output data mean and standard deviation =< MMCC value
All 12 Missing value

Notes:

  1. MMCC is Mission Management Control Centre.
  2. PRF is Pulse Repitition Frequency.

0'21'067 - Wind product confidence data

 F 021067
     1 No forebeam calculation
     2 No midbeam calculation
     3 No aftbeam calculation
     4 Forebeam arcing detected
     5 Midbeam arcing detected
     6 Aftbeam arcing detected
     7 Any beam noise content above or equal to threshold
     8 Land (any land in cell footprint)
     9 Autonomous ambiguity removal not used
    10 Meteorological background not used
    11 Minimum residual exceeded threshold
    12 Frame checksum error detected
All 13 Missing value

0'21'068 - Radar altimeter product confidence data

 F 021068
     1 Standard deviation of wind speed outside MMCC limit
     2 Standard deviation of significant wave height outside MMCC limit
     3 Standard deviation of altitude outside MMCC limit
     4 Mean peakiness outside MMCC limit
     5 Frame checksum error detected
     6 Height-time loop time constant correction not performed
     7 Not enough measurements (N<10)
 All 8 Missing value

Note: MMCC is Mission Management Control Centre.


0'21'069 - SST product confidence data

 F 021069
     1 12.0 micrometer channel present in source data
     2 11.0 micrometer channel present in source data
     3  3.7 micrometer channel present in source data
     4  1.6 micrometer channel present in source data
     5 Cloud identification used 1.6 micrometer histogram reflectance cloud test
     6  1.6 micrometer histogram reflectance cloud test used dynamic threshold
     7 Sun glint detected by 1.6 micrometer reflectance cloud test
     8 3.7 micrometer channel used in sea-surface temperature retrieval
     9 Sea-surface temperature derivation used daytime data (night-time if zero)
All 10 Missing value

0'21'070 - SST product confidence data (SADIST-2)

 F 021070
     1 Cell 1:nadir-only view SST used 3.7 micron channel
     2 Cell 2:nadir-only view SST used 3.7 micron channel  Cell numbering:
     3 Cell 3:nadir-only view SST used 3.7 micron channel    NW       NE
     4 Cell 4:nadir-only view SST used 3.7 micron channel       7 8 9
     5 Cell 5:nadir-only view SST used 3.7 micron channel       4 5 6
     6 Cell 6:nadir-only view SST used 3.7 micron channel       1 2 3
     7 Cell 7:nadir-only view SST used 3.7 micron channel    SW       SE
     8 Cell 8:nadir-only view SST used 3.7 micron channel
     9 Cell 9:nadir-only view SST used 3.7 micron channel
    10 Cell 1:dual view SST used 3.7 micron channel
    11 Cell 2:dual view SST used 3.7 micron channel  Cell numbering:
    12 Cell 3:dual view SST used 3.7 micron channel    NW       NE
    13 Cell 4:dual view SST used 3.7 micron channel       7 8 9
    14 Cell 5:dual view SST used 3.7 micron channel       4 5 6
    15 Cell 6:dual view SST used 3.7 micron channel       1 2 3
    16 Cell 7:dual view SST used 3.7 micron channel    SW       SE
    17 Cell 8:dual view SST used 3.7 micron channel
    18 Cell 9:dual view SST used 3.7 micron channel
    19 Nadir view contains day-time data (night if zero)
    20 Forward view contains day-time data (night if zero)
    21 Record contains contributions from instrument scans acquired when ERS platform not in yaw-steering mode
    22 Record contains contributions from instrument scans for which product confidence data show quality is poor or unknown
All 23 Missing value

0'21'072 - Satellite altimeter calibration status

 F 021072
     1 Height error correction applied instead of open loop calibration
     2 Microwave sounder used for troposphere correction
     3 AGC output correction applied instead of open loop calibration
 All 4 Missing value

0'21'073 - Satellite altimeter instrument mode

 F 021073
     1 Blank data record
     2 Test
     3 Calibration (closed loop)
     4 BITE
     5 Acquisition on ice
     6 Acquisition on ocean
     7 Tracking on ice
     8 Tracking on ocean
 All 9 Missing value

0'21'076 - Representation of intensities

 C 021076
     0 Linear
     1 Logarithmic (base e)
     2 Logarithmic (base 10)
     7 Missing value

3-6 Reserved

0'21'109 - SEAWINDS wind vector cell quality

 F 021109
     1 Not enough good sigma-0 available for wind retrieval
     2 Poor azimuth diversity among sigma-0 for wind retrieveal
     8 Some portion of wind vector cell is over land
     9 Some portion of wind vector cell is over ice
    10 Wind retrieval not performed for wind vector cell
    11 Reported wind speed is greater than 30 m/s
    12 Reported wind speed is less than or equal to 3 m/s
All 17 Missing value
 
3-7, 13-16 Reserved

0'21'115 - SEAWINDS sigma-0 quality

 F 021115
     1 Sigma-0 measurement is not usable
     2 Signal to noise ratio is low
     3 Sigma-0 is negative
     4 Sigma-0 is outside of acceptable range
     5 Scatterometer pulse quality is not acceptable
     6 Sigma-0 cell location algorithm does not converge
     7 Frequency shift lies beyond the range of the x factor table
     8 Spacecraft temperature is beyond calibration coefficient range
     9 No applicable altitude records were found for this sigma-0
    10 Interpolated ephemeris data are not acceptable for this sigma-0
All 17 Missing value

11-16 Reserved

0'21'116 - SEAWINDS sigma-0 mode

 F 021116
     1 Calibration/measurement pulse flag (1)
     2 Calibration/measurement pulse flag (2)
     3 Outer antenna beam
     4 Sigma-0 cell is aft of spacecraft
     5 Current mode (1)
     6 Current mode (2)
     7 Effective gate width - slice resolution (1)
     8 Effective gate width - slice resolution (2)
     9 Effective gate width - slice resolution (3)
    10 Low resolution mode - whole pulse data
    11 Scatterometer electronic subsystem B
    12 Alternate spin rate - 19.8 rpm
    13 Receiver protection on
    14 Slices per composite flag (1)
    15 Slices per composite flag (2)
    16 Slices per composite flag (3)
All 17 Missing value

0'21'119 - Wind scatterometer geophysical model function

 C 021119
     0 Reserved
     1 SASS
     2 SASS2
     3 NSCAT0
     4 NSCAT1
     5 NSCAT2
     6 QSCAT0
     7 QSCAT1
    31 CMOD1
    32 CMOD2
    33 CMOD3
    34 CMOD4
    35 CMOD5
    63 Missing value

8-30, 36-62 Reserved

0'21'144 - Altimeter rain flag

 F 021144
     1 Rain
 All 2 Missing value

0'21'150 - Beam co-location

 C 021150
     0 Data from single ground station (no co-location)
     1 Data from multiple ground station (co-located data)
     2 Reserved
     3 Missing value

0'21'155 - Wind vector cell quality

 F 021155
     1 Not enough good sigma-0 available for wind retrieval
     2 Poor azimuth diversity among sigma-0 for wind retrieval
     3 Any beam noise content above threshold
     4 Product monitoring not used
     5 Product monitoring flag
     6 KNMI quality control fails
     7 Variational quality control fails
     8 Some portion of wind vector cell is over land
     9 Some portion of wind vector cell is over ice
    10 Wind retrieval not performed for wind vector cell
    11 Reported wind speed is greater than 30 m/s
    12 Reported wind speed is less than or equal to 3 m/s
    13 Rain flag for the wind vector cell is not usable
    14 Rain flag algorithm detects rain
    15 No meteorological background used
    16 Data are redundant
All 24 Missing value

17-23 Reserved

0'21'158 - ASCAT KP quality estimate

 C 021158
     0 Acceptable
     1 Not acceptable
     2 Reserved
     3 Missing value


0'21'159 - ASCAT sigma-0 usability

 C 021159
     0 Good
     1 Usable
     2 Bad
     3 Missing value

0'21'169 - Ice presence indicator

 C 021169
     0	No ice present
     1	Ice present
     2	Reserved
     3	Missing value

Class 22


0'22'056 - Direction of profile

 C 022056
     0 Upwards profile
     1 Downwards profile
     2 Horizontal
     3 Missing value

0'22'060 - Lagrangian drifter drogue status

 C 022060
     0 Drogue is detached
     1 Drogue is attached
     2 Drogue status unknown
     7 Missing value

3-6 Reserved

0'22'061 - State of the sea

 C 022061
     0 Calm (glassy)      0
     1 Calm (rippled)     0    -  0.1
     2 Smooth (wavelets)  0.1  -  0.5
     3 Slight             0.5  -  1.25
     4 Moderate           1.25 -  2.5
     5 Rough              2.5  -  4
     6 Very rough         4    -  6
     7 High               6    -  9
     8 Very high          9    - 14
     9 Phenomenal           Over 14
    15 Missing value

10-14 Reserved

Notes:

  1. These values refer to well-developed wind waves of the open sea. While priority shall be given to the descriptive terms, these height values may be used for guidance by the observer when reporting the total state of agitation of the sea resulting from various factors such as wind, swell, currents, angle between swell and wind, etc.
  2. The exact bounding height shall be assigned for the lower code figure; e.g., a height of 4 m is coded as 5.

0'22'067 - Instrument type for water temperature profile measurement with fall rate equation coefficients

Instrument Make and Type - Equation coefficients a and b

 C 022067
     1 Sippican T-4        6.472  -2.16
     2 Sippican T-4        6.691  -2.25
    11 Sippican T-5        6.828  -1.82
    21 Sippican Fast Deep  6.390  -1.82
    31 Sippican T-6        6.472  -2.16
    32 Sippican T-6        6.691  -2.25
    41 Sippican T-7        6.472  -2.16
    42 Sippican T-7        6.691  -2.25
    51 Sippican Deep Blue  6.472  -2.16
    52 Sippican Deep Blue  6.691  -2.25
    61 Sippican T-10       6.301  -2.16
    71 Sippican T-11       1.7779 -0.255
    81 Sippican AXBT (300 m probes) 1.52   0.0
   201 TSK T-4             6.472  -2.16
   202 TSK T-4             6.691  -2.25
   211 TSK T-6             6.472  -2.16
   212 TSK T-6             6.691  -2.25
   221 TSK T-7             6.472  -2.16
   222 TSK T-7             6.691  -2.25
   231 TSK T-5             6.828  -1.82
   241 TSK T-10            6.301  -2.16
   251 TSK Deep Blue       6.472  -2.16
   252 TSK Deep Blue       6.691  -2.25
   261 TSK AXBT
   401 Sparton XBT-1       6.301  -2.16
   411 Sparton XBT-3       5.861  -0.0904
   421 Sparton XBT-4       6.472  -2.16
   431 Sparton XBT-5       6.828  -1.82
   441 Sparton XBT-5DB     6.828  -1.82
   451 Sparton XBT-6       6.472  -2.16
   461 Sparton XBT-7       6.472  -2.16
   462 Sparton XBT-7       6.705  -2.28
   471 Sparton XBT-7DB     6.472  -2.16
   481 Sparton XBT-10      6.301  -2.16
   491 Sparton XBT-20      6.472  -2.16
   501 Sparton XBT-20DB    6.472  -2.16
   510 Sparton 536 AXBT    1.524   0
   700 Sippican XCTD standard
   710 Sippican XCTD deep
   720 Sippican AXCTD
   730 Sippican SXCTD
   741 TSK XCTD            3.42543  -0.47
   742 TSK XCTD-2
   743 TSK XCTD-2F
   751 TSK AXCTD
   780 SeaBird SBE21 SEACAT Thermosalinograph          - NA
   781 SeaBird SBE45 MicroTSG Thermosalinograph        - NA
   800 Mechanical BT                                   - NA
   810 Hydrocast                                       - NA
   820 Thermistor Chain                                - NA
   825 Temperature (sonic) and Pressure probes         - NA
   830 CTD                                             - NA
   831 CTD-P-ALACE float                               - NA
   840 PROVOR, No conductivity sensor                  - NA
   841 PROVOR, Seabird conductivity sensor             - NA
   842 PROVOR, FSI conductivity sensor                 - NA
   843 Polar Ocean Profiling System (POPS), PROVOR, SBE CTD
   845 Webb Research, No conductivity sensor           - NA
   846 Webb Research, Seabird conductivity sensor      - NA
   847 Webb Research, FSI conductivity sensor          - NA
   850 SOLO, No conductivity sensor                    - NA
   851 SOLO, Seabird conductivity sensor               - NA
   852 SOLO, FSI conductivity sensor                   - NA
   855 Profiling float, NINJA, No conductivity sensor  - NA
   856 Profiling float, NINJA, SBE conductivity sensor - NA
   857 Profiling float, NINJA, FSI conductivity sensor - NA
   858 Profiling float, NINJA, TSK conductivity sensor - NA
   859 Profiling Float, NEMO, no conductivity          - NA
   860 Profiling Float, NEMO, SBE conductivity sensor  - NA
   861 Profiling Float, NEMO, FSI conductivity sensor  - NA
   900 Sippican LMP-5 XBT   9.727  -0.0000473
   901 Icetethered Profiler (ITP), SBE CTD
   995 Instrument attached to marine mammals           - NA
   996 Instrument attached to animals other than marine mammals - NA
  1023 Missing value
 
853-854, 862-899, 902-994, 997-1022 Reserved

Notes:

  1. The depth is calculated from coefficients a and b and the time t as follows:
    z = a * t + (10**-3) * b * t**2
  2. All unassigned numbers are reserved for future use.
  3. The values of a and b are supplied for information only.

0'22'068 - Water temperature profile recorder types

 C 022068
     1 Sippican Strip Chart Recorder
     2 Sippican MK2A/SSQ-61
     3 Sippican MK-9
     4 Sippican AN/BHQ-7/MK8
     5 Sippican MK-12
     6 Sippican MK-21
     8 Sippican MK-10
    10 Sparton SOC BT/SV Processor Model 100
    11 Lockheed-Sanders Model OL5005
    20 ARGOS XBT-ST
    21 CLS-ARGOS / Protecno XBT-ST Model-1
    22 CLS-ARGOS / Protecno XBT-ST Model-2
    30 BATHY Systems SA-810
    31 Scripps Metrobyte Controller
    32 Murayama Denki Z-60-16 III
    33 Murayama Denki Z-60-16 II
    34 Protecno ETSM2
    35 Nautilus Marine Service NMS-XBT
    40 TSK MK-2A
    41 TSK MK-2S
    42 TSK MK-30
    43 TSK MK-30N
    45 TSK MK-100
    46 TSK MK-130 Compatible recorder for both XBT and XCTD
    47 TSK MK-130A XCTD recorder
    48 TSK AXBT RECEIVER MK-300
    50 JMA ASTOS
    60 ARGOS communications, sampling on up transit
    61 ARGOS communications, sampling on down transit
    62 Orbcomm communications, sampling on up transit
    63 Orbcomm communications, sampling on down transit
    64 Iridium communications, sampling on up transit
    65 Iridium communications, sampling on down transit
    70 CSIRO Devil-1 XBT acquisition system
    71 CSIRO Devil-2 XBT acquisition system
    80 Applied Microsystems Ltd., MICRO-SVT & P
    81 Sea Mammal Research Unit, Univ. St. Andrews, UK, uncorrected salinity from a sea mammal mounted instrument
    82 Sea Mammal Research Unit, Univ. St. Andrews, UK, corrected salinity from a sea mammal mounted instrument
    99 Unknown
   127 Missing value

Note: All unassigned numbers are reserved for future use.


0'22'120 - Tide station automated water level check

 C 022120
     0 Good data
     1 Maximum (high) water level limit exceeded
     2 Minimum (low) water level limit exceeded
     3 Rate of change limit for water level exceeded
     4 Flat limit for water level exceeded
     5 Observed minus predicted water level value limit exceeded
     6 Observed value from primary water level sensor minus backup water level sensor
     7 Value exceeded specified tolerance from expected value
     8 Water level QA parameter (sigmas and/or outliers) limits exceeded
     9 Sea temperature outside of expected range
    10 Multiple QC checks (above) failed
    11 No automated water level checks performed
    31 Missing value

12-30 Reserved

0'22'121 - Tide station manual water level check

 C 022121
     0 Operational
     1 Possible clogging problem or otherwise degraded water level data
     2 Possible datum shift
     3 Unknown status of water level sensor
     4 Suspected or known sea temperature sensor problem
     5 Multiple possible problems (above)
     6 Bad data - DO NOT DISSEMINATE!
     7 No manual water level checks performed
    31 Missing value

8-30 Reserved

0'22'122 - Tide station automated meteorological data check

 C 022122
     0 Good data from all sensors
     1 Wind direction outside of allowable range
     2 Wind speed outside of expected range
     3 Barometric pressure outside of expected range
     4 Air temperature outside of expected range
     5 Multiple sensors failed QC checks
     6 No automated meteorological data checks performed
    31 Missing value

7-30 Reserved

0'22'123 - Tide station manual meteorological data check

 C 022123
     0 Operational
     1 Suspected or known problem with wind sensor
     2 Suspected or known problem with barometric pressure sensor
     3 Suspected or known problem with air temperature sensor
     4 Unknown status of all sensors
     5 Suspected or known problems with multiple sensors
     6 Bad data - DO NOT DISSEMINATE!
     7 No manual meteorological data checks performed
    31 Missing value

8-30 Reserved

0'22'178 - XBT/XCTD launcher Type

 C 022178
     0 Unknown
     1 LM-2A Deck-mounted
     2 LM-3A Hand-Held
     3 LM-4A Thru-Hull
    10 AL-12 TSK Autolauncher (up to 12 Probes)
    20 SIO XBT Autolauncher (up to 6 probes)
    30 AOML XBT V6 Autolauncher (up to 6 Deep Blue probes)
    31 AOML XBT V8.0 Autolauncher (up to 8 Deep Blue probes)
    32 AOML XBT V8.1 Autolauncher (up to 8 Deep Blue and Fast Deep probes)
    90 CSIRO Devil Autolauncher
   100 MFSTEP Autolauncher (Mediterranean)
   255 Missing

4-9, 11-19, 21-29, 33-89, 91-99, 101-254 Reserved

Class 23


0'23'001 - Accident early notification - article applicable

 C 023001
     0 Reserved
     1 Articles 1 and 2
     2 Article 3
     3 Article 5.2
     7 Missing value

4-6 Reserved

0'23'002 - Activity or facility involved in incident

 C 023002
     0 Reserved
     1 Nuclear reactor on ground
     2 Nuclear reactor at sea
     3 Nuclear reactor in space
     4 Nuclear fuel facility
     5 Radioactive waste management facility
     6 Transport of nuclear fuel or radioactive waste
     7 Storage of nuclear fuel or radioactive waste
     8 Manufacture of radio-isotopes
     9 Use of radio-isotopes
    10 Storage of radio-isotopes
    11 Disposal of radio-isotopes
    12 Transport of radio-isotopes
    13 Use of radio-isotopes for power generation
    30 Other
    31 Missing data

14-29 Reserved

0'23'003 - Type of release

 C 023003
     0 No release
     1 Release to atmosphere
     2 Release to water
     3 Release to both atmosphere and water
     4 Expected release to atmosphere
     5 Expected release to water
     6 Expected release to both atmosphere and water
     7 Missing value

0'23'004 - Countermeasures taken near border

 C 023004
     0 No countermeasures
     1 Evacuation
     2 Sheltering
     3 Prophylaxis
     4 Water
     7 Missing value

5-6 Reserved

0'23'005 - Cause of the incident

 C 023005
     0 Incident State does not understand what happened
     1 Incident State knows the cause of the incident
     2 Reserved
     3 Missing value

0'23'006 - Incident situation

 C 023006
     0 No improvement
     1 Unstable
     2 No detoriation
     3 Improving
     4 Stable
     5 Deteriorating
     6 Reserved
     7 Missing value

0'23'007 - Characteristics of release

 C 023007
     0 No release
     1 Release has stopped
     2 Release
     3 Release is continuing
     7 Missing value

4-6 Reserved

0'23'008 - State of current or expected release

 C 023008
     0 Gaseous
     1 Particulate
     2 Mixture of gaseous and particulate
     3 Missing value

0'23'009 - State of current or expected release

 C 023009
     0 Gaseous
     1 Particulate
     2 Mixture of gaseous and particulate
     3 Missing value

0'23'016 - Possibility of significant chemical toxic health effect

 C 023016
     0 No significant chemical toxic health effect
     1 Significant chemical toxic health effect possible
     2 Reserved
     3 Missing value

0'23'018 - Release behaviour over time

 C 023018
     0 Release no longer occurring
     1 Release still occurring
     2 Release expected to increase in next six hours
     3 Release expected to remain constant in next six hours
     4 Release expected to decrease in next six hours
     7 Missing value

5-6 Reserved

0'23'031 - Possibility that plume will encounter precipitation in State in which incident occurred

 C 023031
     0 Plume will not encounter rain in incident State
     1 Plume will encounter rain in incident State
     2 Reserved
     3 Missing value

0'23'032 - Plume will encounter change in wind direction and/or speed flag

 C 023032
     0 No significant change expected within the next six hours
     1 Anticipated significant change expected within the next six hours
     2 Reserved
     3 Missing value

Class 24


0'24'003 - Composition of release

 C 024003
     0 Noble gases
     1 Iodines
     2 Caesium
     3 Transuranics
    31 Missing value

4-30 Reserved

Class 25


0'25'004 - Echo processing

 C 025004
     0 Incoherent
     1 Coherent (Doppler)
     2 Reserved
     3 Missing value

0'25'005 - Echo integration

 C 025005
     0 Logarithm - 2.5 dB
     1 Linear
     2 Special
     3 Missing value

0'25'006 - Z to R conversion

 C 025006
     0 ZH to R conversion
     1 (ZH,ZDR) to (NO,DO) to R
     2 (Z(F1),Z(F2)) to attenuation to R
     6 Other
     7 Missing value

3-5 Reserved

0'25'009 - Calibration method

 F 025009
     1 None
     2 Calibration target or signal
     3 Against raingauges
     4 Against other instruments (distrometer - attenuation)

All 4: Missing value

0'25'010 - Clutter treatment

 C 025010
     0 None
     1 Map
     2 Insertion of higher elevation data and map
     3 Analysis of the fluctuating logarithm signal (clutter detection)
     4 Extraction of the fluctuating part of the signal (clutter suppression)
     5 Clutter suppression - Doppler
     6 Multiparameter analysis
    15 Missing value

7-14 Reserved

0'25'011 - Ground occultation correction (screening)

 C 025011
     0 None
     1 Map of correction factors
     2 Interpolation (azimuth or elevation)
     3 Missing value

0'25'012 - Range attenuation correction

 C 025012
     0 Hardware
     1 Software
     2 Hardware and software
     3 Missing value

0'25'013 - Bright-band correction

 F 025013
     1 Bright-band correction
 All 2 Missing value

0'25'015 - Radome attenuation correction

 F 025015
     1 Radome attenuation correction
 All 2 Missing value

0'25'017 - Precipitation attenuation correction

 F 025017
     1 Precipitation attenuation correction
 All 2 Missing value

0'25'020 - Mean speed estimation

 C 025020
     0 FFT (fast Fourier transform)
     1 PPP (pulse-pair processing)
     2 VPC (vector-phase change)
     3 Missing value

0'25'021 - Wind computation enhancement

 F 025021
     1 Simple average
     2 Consensus average
     3 Median check
     4 Vertical consistency check
     5 Other
 All 8 Missing value
 
6-7 Reserved

0'25'022 - GHRSST Rejection Flag

 F 025022
     1	Unprocessed
     2	Land suspected.
     3	Wind speed too large
     4	Ice detected.
     5	Rain detected (Microwave retrievals only)
     6	Cloudy detected (Infra-red retrievals only)
     7	Cosmetic value
     8	SST out of range

All 9 Missing value

0'25'023 - GHRSST Confidence Flag

 F 025023
     1	Default confidence value has been used
     2	Default bias and standard deviation has been used
     3	Sun glint suspected
     4	Sea ice retrieval for microwave data
     5	High wind speed retrieval
     6	Inaccurate SST due to low SST (< 285K) (Only applies to the TMI instrument)
     7	Relaxed rain contamination suspected
     8	Potential side lobe contamination

All 9 Missing value

0'25'024 - GHRSST proximity confidence

 F 025024
     0	Unprocessed infrared retrieval
     1	Cloudy retrievals
     2	Bad: Data that are probably contaminated by cloud
     3	Suspect data
     4	Acceptable data
     5	Excellent data
     6	Cool skin suspected
    10	Unprocessed microwave retrieval
    11	Questionable microwave retrieval that may be contaminated
    12	Acceptable microwave retrieval 
    13	High probability of diurnal variability
    14	Reserved
    15	Missing value

7-9 Reserved

0'25'029 - Calibration method

 F 025029
     1 Reserved
     2 Calibration target or signal
     3 Against raingauges
     4 Against other instruments (distrometer - atenuation)
     5 Reserved
 All 6 Missing value

0'25'030 - Running mean sea-surface temperature usage

 C 025030
     0 Running mean sea-surface temperature not used because usage criteria not met
     1 Running mean sea-surface temperature not used because data not available
     2 Running mean sea-surface temperature used as predictor
     3 Missing value

0'25'032 - Wind profiler mode information

 C 025032
     0 Reserved
     1 Data from low mode
     2 Data from high mode
     3 Missing value

0'25'033 - Wind profiler submode information

 C 025033
     0 Wind profiler operating in submode A
     1 Wind profiler operating in submode B
     2 Reserved
     3 Missing value

0'25'034 - Wind profiler quality control test results

Meaning (1 = true, 0 = false)

 F 025034
     1 Test A performed and failed
     2 Test B performed and failed
     3 Test results inconclusive
 All 4 Missing value

0'25'035 - Decision method for polarity

 C 025035
     0 Not defined
     1 Individual voltage deflection
     2 Current based, above a threshold
     3 Voltage based, above a threshold
     4 Consensus of sensors, current above a threshold
     5 Consensus of sensors, voltage above a threshold
     6 Reserved
     7 Missing value

0'25'036 - Atmospherics location method

 C 025036
     0 Network of several direction-finders operating on the same individual atmospherics
     1 Network of several arrival-time stations operating on the same individual atmospherics
     6 Single station range bearing technique
    15 Missing value

2-5 and 7-14 Reserved

0'25'040 - CO2 wind product derivation

 C 025040
     0 Non-specific mode
     1 First guess data
     2 Cloud data
     3 Average vector data
     4 Primary data
     5 Guess data
     6 Vector data
     7 Tracer data; this image
     8 Tracer data to next image
    15 Missing value

9-14 Reserved

0'25'041 - Moving platform direction reporting method

 C 025041
     0 Direction originally reported in true degrees
     1 Direction originally reported using Code table 0700, FM 13
     2 Reserved
     3 Missing value

Note: Where the original reporting method is as indicated by code figure 1, the following conversion is recommended to obtain a suitable data value corresponding to descriptor 0'01'012:

        Reported value Data value
               0            0
               1           45
               2           90
               3          135
               4          180
               5          225
               6          270
               7          315
               8          360
               9          511

0'25'042 - Moving platform speed reporting method

 C 025042
     0 Speed originally reported in metres per second
     1 Speed originally reported using Code table 4451, FM 13
     2 Reserved
     3 Missing vallue

Note: Where the original reporting method is as indicated by code figure 1, the following conversion is recommended to obtain a suitable data value corresponding to descriptor 0'01'013:

       Reported value  Data value
               0            0
               1            1
               2            4
               3            7
               4            9
               5           12
               6           14
               7           17
               8           19
               9           21
               /         1023

0'25'045 - HIRS channel combination

 F 025045
    1-20 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
  All 21 Missing value

0'25'046 - MSU channel combination

 F 025046
     1-4 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
   All 5 Missing value

0'25'047 - SSU channel combination

 F 025047
     1-3 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
   All 4 Missing value

0'25'048 - AMSU-A channel combination

 F 025048
    1-15 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
  All 16 Missing value

0'25'049 - AMSU-B channel combination

 F 025049
     1-5 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
   All 6 Missing value

0'25'051 - AVHRR channel combination

 F 025051
     1-6 Beginning with first bit position (high order bit),
         if bit position is set to 1, then channel is present
         if bit position is set to 0, then channel is not present
   All 7 Missing value

0'25'053 - Observation quality

 F 025053
     1 Good
     2 Redundant
     3 Questionable
     4 Bad
     5 Experimantal
     6 Precipitating
All 12 Missing value
 
7-11 Reserved

0'25'063 - Central processor or system identifier

 C 025063
     0 Not defined
     1 Main processor
     2 Backup processor
   255 Missing value

3-254 Reserved

0'25'069 - Flight level pressure corrections

 F 025069
     1 Smoothed
     2 Baseline adjusted
     3 Normalized time interval
     4 Outlier checked
     5 Plausibility checked
     6 Consistency checked
     7 Interpolated
   All Missing value

0'25'086 - Depth correction indicator

 C 025086
     0 Depths are not corrected
     1 Depths are corrected
     2 Reserved
     3 Missing value

0'25'090 - Orbit state flag

 C 025090 
     0	Orbit computed during a manoeuvre
     1	Adjusted mission operations orbit
     2	Extrapolated mission operations orbit
     3	Adjusted (preliminary/precise) orbit
     4	(preliminary/precise) orbit is estimated during a manoeuvre period
     5	(preliminary/precise) orbit is interpolated over a tracking data gap
     6	(preliminary/precise) orbit is extrapolated for a duration less than 1 day
     7	(preliminary/precise) orbit is extrapolated for a duration that ranges from 1 day to 2 days
     8	(preliminary/precise) orbit is extrapolated for a duration larger than 2 days, or that the orbit is extrapolated just after a manoeuvre
     9	DORIS(1) DIODE(2) navigator orbit
    15	Missing value

10-14 Reserved
  1. DORIS stands for "Doppler Orbitography and Radio-positioning Integrated by Satellite".
  2. DIODE means "Determination Immediate d'Orbite par Doris Embarque" or immediate onboard orbit determination by DORIS. It is part of the DORIS instrument, which calculates the satellite's position and velocity.

0'25'093 - RASS computation correction

 F 025093
     1 No correction
     2 Vertical velocity correction
     7 All corrections
 All 8 Missing value
 
3-6 Reserved

0'25'095 - Altimeter state flag

 F 025095
     1 Altimeter operating (set to 0 if nominal, set to 1 if backup)
 All 2 Missing value

0'25'096 - Radiometer state flag

 F 025096
     1 Mode indicator (0 if Mode 2, 1 if Mode 1)
     2 Mode 1 Calibration sequence indicator (0 if normal data taking either Mode 1 or 2, 1 if Mode 1 Calibration sequence)
     3 Channel 2 (0 if on, 1 if off)
     4 Channel 3 (0 if on, 1 if off)
 All 5 Missing value

  Bits 3 and 4 indicate active 23.8 GHz channel(s)


0'25'097 - Three-dimensional error estimate of the navigator orbit

 C 025097
     0 Ranges between 0 and 30 cm
     1 Ranges between 30 and 60 cm
     2 Ranges between 60 and 90 cm
     3 Ranges between 90 and 120 cm
     4 Ranges between 120 and 150 cm
     5 Ranges between 150 and 180 cm
     6 Ranges between 180 and 210 cm
     7 Ranges between 210 and 240 cm
     8 Ranges between 240 and 270 cm
     9 Ranges larger than 270 cm
    15 Missing value

10-14 Reserved

0'25'098 - Altimeter data quality flag

 F 025098	(0 is good, 1 is bad)
     1	Ku band range
     2	C band range
     3	Ku band SWH*
     4	C band SWH*
     5	Ku band backscatter coefficient
     6	C band backscatter coefficient
     7	Off nadir angle from Ku band waveform parameters
     8	Off nadir angle from platform

All 9 bits Missing value

* SWH stands for "Significant wave height"


0'25'099 - Altimeter correction quality flag

 F 025099	(0 is good, 1 is bad)
     1	Ku band range instrumental correction
     2	C band range instrumental correction
     3	Ku band SWH* instrumental correction
     4	C band SWH* instrumental correction
     5	Ku band backscatter coefficient instrumental correction
     6	C band backscatter coefficient instrumental correction

7-8 Reserved
All 9 bits Missing value

* SWH stands for "Significant wave height"


0'25'110 - Image processing summary

 F 025110
     1 Raw data analysis used for raw data correction. Correction done using default parameters.
     2 Raw data analysis used for raw data correction. Correction done using raw data analysis results.
     3 Antenna elevation pattern correction applied
     4 Nominal chirp replica used
     5 Reconstructed chirp used
     6 Slant range to ground range conversion applied
All 10 Missing value
 
7-9 Reserved

0'25'120 - RA2_l2_processing flag

 C 025120
     0 Percentage of DSRs free of processing errors during Level 2 processing is greater than the acceptable threshold
     1 Percentage of DSRs free of processing errors during Level 2 processing is less than the acceptable threshold
     2 Reserved
     3 Missing value

Note: DSR = Data Set Record


0'25'122 - Hardware configuration for RF

 C 025122
     0 Hardware configuration for RF is A
     1 Hardware configuration for RF is B
     2 Reserved
     3 Missing value

Note: RF = Radio Frequency


0'25'123 - Hardware configuration for HPA

 C 025123
     0 Hardware configuration for HPA is A
     1 Hardware configuration for HPA is B
     2 Reserved
     3 Missing value

Note: HPA = High Power Amplifier


0'25'124 - MWR*-L2-processing flag

 C 025124
     0 Percentage of DSRs free of processing errors during Level 2 processing is greater than the acceptable threshold
     1 Percentage of DSRs free of processing errors during Level 2 processing is less than the acceptable threshold
     2 Reserved
     3 Missing value

Note: DSR = Data Set Record; MWR = Microwave radiometer


0'25'150 - Method of tropical cyclone intensity analysis using satellite data

 C 025150
     1 The Dvorak's VIS (VISual imagery) intensity analysis
     2 The Dvorak's EIR (Enhanced InfraRed imagery) intensity analysis
    15 Missing value

3-14 Reserved

0'25'174 - SMOS information flag

 F 025174
     1	Pixel is affected by RFI effects
     2	Pixel is located in the hexagonal Alias direction centred on Sun alias
     3	Pixel is close to the border delimiting the extended Alias free zone
     4	Pixel is inside the extended Alias free zone
     5	Pixel is inside the exclusive of Alias free zone
     6	Pixel is located in a zone where a Moon Alias was reconstructed
     7	Pixel is located in a zone where Sun reflection has been detected
     8	Pixel is located in a zone where Sun Alias was reconstructed
     9	Flat target transformation has been performed during image reconstruction of this pixel
    10	Scene has been combined with an adjustment scene in opposite polarisation during image reconstruction to account for cross-polarisation leakage
    11	Direct Moon correction has been performed during image reconstruction of this pixel
    12	Reflected Sun correction has been performed during image reconstruction of this pixel
    13	Direct Sun correction has been performed during image reconstruction of this image

All 14 Missing value

Class 26


0'26'010 - Hours included

 F 026010
     1 0100 included
     2 0200 included
     3 0300 included
     4 0400 included
     5 0500 included
     6 0600 included
     7 0700 included
     8 0800 included
     9 0900 included
    10 1000 included
    11 1100 included
    12 1200 included
    13 1300 included
    14 1400 included
    15 1500 included
    16 1600 included
    17 1700 included
    18 1800 included
    19 1900 included
    20 2000 included
    21 2100 included
    22 2200 included
    23 2300 included
    24 2400 included
    25 Unknown mixture of hours
All 26 Missing value

Class 29


0'29'001 - Projection type

 C 029001
     0 Gnomonic projection
     1 Polar stereographic projection
     2 Lambert's conformal conic projection
     3 Mercator's projection
     4 Scanning cone (radar)*
     7 Missing value

5-6 Reserved

* Projection type 4 indicates a Cartesian grid placed directly on the scanning cone defined by the azimuthal sweep of the radar.


0'29'002 - Coordinate grid type

 C 029002
     0 Cartesian
     1 Polar
     2 Other
     7 Missing value

3-6 Reserved

Class 30


0'30'031 - Picture type

 C 030031
     0 PPI
     1 Composite
     2 CAPPI
     3 Vertical section
     4 Alphanumeric data
     5 Map of subject clutter
     6 Map
     7 Test picture
     8 Comments
     9 Map of ground occultation
    10 Map of radar beam height
    14 Other
    15 Missing value

11-13 Reserved

0'30'032 - Combination with other data

 F 030032
     1 Map
     2 Satellite IR
     3 Satellite VIS
     4 Satellite WV
     5 Satellite multispectral
     6 Synoptic observations
     7 Forecast parameters
     8 Lightning data
    15 Other data
All 16 Missing value
 
9-14 Reserved

Class 31


0'31'021 - Associated field significance

 C 031021
     0 Reserved
     1 1-bit indicator of quality; 0=good, 1=suspect or bad
     2 2-bit indicator of quality; 0=good, 1=slightly suspect, 2=highly suspect, 3=bad
     6 4-bit indicator of quality control class according to GTSPP
     7 Percentage confidence
     8 0 - Not suspected, 1 - Suspected, 2 - Reserved, 3 - Information not required
    21 1-bit indicator of correction (see Note 2); 0=original value, 1=substituted/corrected value
    63 Missing value
 
3-5, 9-20 Reserved 22-62 Reserved for local use

Notes:

  1. Associated field significance shall be used initially in conjunction with the quality of observed data.
  2. The code figure 21 may be used within corrected messages with the substituted/corrected values identified.
  3. Further applications may be developed.
GTSPP quality values (6):

   0 = Unqualified
   1 = Correct value (all checks passed)
   2 = Probably good but value inconsistent with statistics (differ from climatology)
   3 = Probably bad (spike, gradient, ... if other tests passed)
   4 = Bad value, impossible value (out of scale, vertical instability, constant profile)
   5 = Value modified during quality control
 6-7 = Not used (reserved)
   8 = Interpolated value
   9 = Missing value

0'31'031 - Data present indicator

(Actually this is a FlagTable)

 C 031031
     0 Data present
     1 Data not present

Class 33


0'33'002 - Quality information

 C 033002
     0 Data not suspect
     1 Data suspect
     2 Reserved
     3 Quality information not given

0'33'003 - Quality information

 C 033003
     0 Data not suspect
     1 Data slightly suspect
     2 Data highly suspect
     3 Data considered unfit for use
     7 Quality information not given

4-6 Reserved

0'33'005 - Quality Information (AWS data)

 F 033005
     1 No automated meteorological data checks performed
     2 Pressure data suspect
     3 Wind data suspect
     4 Dry-bulb temperature data suspect
     5 Wet-bulb temperature data suspect
     6 Humidity data suspect
     7 Ground temperature data suspect
     8 Soil temperature (depth 1) data suspect
     9 Soil temperature (depth 2) data suspect
    10 Soil temperature (depth 3) data suspect
    11 Soil temperature (depth 4) data suspect
    12 Soil temperature (depth 5) data suspect
    13 Cloud data suspect
    14 Visibility data suspect
    15 Present weather data suspect
    16 Lightning data suspect
    17 Ice deposit data suspect
    18 Precipitation data suspect
    19 State of ground data suspect
    20 Snow data suspect
    21 Water content data suspect
    22 Evaporation/evapotranspiration data suspect
    23 Sunshine data suspect
All 30 Missing value
 
24-29 Reserved

0'33'006 - Internal measurement status information (AWS)

 C 033006
     0 Self-check OK
     1 At least one Warning active, no Alarms
     2 At least one Alarm active
     3 Sensor failure
     7 Missing value

4-6 Reserved

0'33'015 - Data Quality Check Indicator

 C 033015
     0 Passed all checks
     1 Missing-data check
     2 Descending/reascending balloon check
     3 Data plausibility check (above limits)
     4 Data plausibility check (below limits)
     5 Superadiabatic lapse rate check
     6 Limiting angles check
     7 Ascension rate check
     8 Excessive change from previous flight
     9 Balloon overhead check
    10 Wind speed check
    11 Wind direction check
    12 Dependency check
    13 Data valid but modified
    14 Data outlier check
    63 Missing value

15-62 Reserved

0'33'020 - Quality control indication of following value

 C 033020
     0 Good
     1 Inconsistent
     2 Doubtful
     3 Wrong
     4 Not checked
     5 Has been changed
     6 Estimated
     7 Missing value

0'33'021 - Quality of following value

 C 033021
     0 Within limits
     1 Outside limits
     2 Reserved
     3 Missing value

0'33'022 - Quality of buoy satellite transmission

 C 033022
     0 Good (several identical reports have been received)
     1 Dubious (no identical reports have been received)
     2 Reserved
     3 Missing value

0'33'023 - Quality of buoy location

 C 033023
     0 Reliable (location was made over two satellite passes)
     1 Latest known (no location over the corresponding pass)
     2 Dubious (location made over one pass only; a second solution is possible in 5 per cent of the cases)
     3 Missing value

0'33'024 - Station elevation quality mark (for mobile stations)

 C 033024
     0 Reserved
     1 Excellent - within 3 meters
     2 Good - within 10 meters
     3 Fair - within 20 meters
     4 Poor - more than 20 meters
     5 Excellent - within 10 feet
     6 Good - within 30 feet
     7 Fair - within 60 feet
     8 Poor - more than 60 feet
    15 Missing value

9-14 Reserved

0'33'025 - ACARS interpolated values

 C 033025
     0 Time interpolated, latitude and longitude reported
     1 Time reported, latitude and longitude interpolated
     2 Time, latitude, and longitude interpolated
     3 Time, latitude, and longitude reported
     7 Missing value

4-6 Reserved

0'33'026 - Moisture quality

 C 033026
     0 Normal operations - measurement mode
     1 Normal operations - non-measurement mode
     2 Small RH
     3 Humidity element is wet
     4 Humidity element contaminated
     5 Heater fail
     6 Heater fail and wet/contaminated humidity element
     7 At least one of the input parameters used in the calculation of mixing ratio is invalid
     8 Numeric error
     9 Sensor not installed
    63 Missing value

10-62 Reserved

0'33'027 - Location quality class (range of radius of 66 % confidence)

 C 033027
     0 Radius >= 1500 m
     1 500 m <= Radius < 1500 m
     2 250 m <= Radius < 500 m
     3 Radius < 250 m
     7 Missing value

4-6 Reserved

0'33'028 - Snapshot overall quality

 C 033028
     1	Nominal
     2	Degraded by SW error; any error reported by the algorithms
     3	Degraded by instrument error
     4	Degraded by corrupted /missing ADF
     7	Missing value

5-6 Reserved

0'33'030 - Scan line status flags for ATOVS

 F 033030
     1 Do not use scan for product generation
     2 Time sequence error detected with this scan
     3 Data gap precedes this scan
     4 No calibration
     5 No Earth location
     6 First good time following a clock update
     7 Instrument status changed with this scan
All 24 Missing value
 
8-23 Reserved

Note: If bit is set to 1 then statement is true.


0'33'031 - Scan line quality flags for ATOVS

 F 033031
     1 Time field is bad but can probably be inferred from the previous good time
     2 Time field is bad and can't be inferred from the previous good time
     3 This record starts a sequence that is inconsistent with previous times (i.e. there is a time discontinuity). This may or may not be associated with a spacecraft clock update (see scan line status flags for ATOVS)
     4 Start of a sequence that apparently repeats scan times that have been previously accepted
     5 Scan line was not calibrated because of bad time
     6 Scan line was calibrated using fewer than the preferred number of scan lines because of proximity to start or end of data or to a data gap
     7 Scan line was not calibrated because of bad or insufficient PRT data
     8 Scan line was calibrated but with marginal PRT data
     9 Some uncalibrated channels on this scan
    10 Uncalibrated due to instrument mode
    11 Questionable calibration because of antenna position error of space view
    12 Questionable calibration because of antenna position error of black body
    13 Not Earth located because of bad time
    14 Earth location questionable because of questionable time code (see time problem code bits)
    15 Earth location questionable - only marginal agreement with reasonableness check
    16 Earth location questionable - fails reasonableness check
    17 Earth location questionable because of antenna position check
    18 Scan line calibration cold black body
    19 Scan line calibration warm black body
    20 Scan line calibration space view
    21 Earth view
All 24 Missing value
 
22-23 Reserved

Notes:

  1. If bit is set to 1 then statement is true.
  2. Bits 1-4 represent time problem code. All bits off implies the scan time is as expected.
  3. Bits 5-10 represent calibration problem code. All bits set to zero indicates normal calibration. Where any of bits 5,7,10 are set, secondary calibration coefficients have been used.
  4. Bits 11-17 represent earth location problem code. All bits set to zero implies the earth location was normal.

0'33'032 - Channel quality flags for ATOVS

 F 033032
     1 No good blackbody counts for scan line
     2 No good space view counts for this line
     3 No good PRTs for this line
     4 Some bad blackbody view counts for this line
     5 Some bad space view counts for this line
     6 Some bad PRT temps on this line
All 24 Missing value
 
7-23 Reserved (bits set to zero)

Note: All bits off implies a good calibration.


0'33'033 - Field of view quality flags for ATOVS

 F 033033
     1 Set if secondary calibration used
    22 Set if all the channels are missing
    23 Suspect
  2-21 Bit n set to 1 if brightness temperature in channel n-1 is physically
       unreasonable or has not been calculated due to calibration problems
All 24 Missing value

Notes:

  1. All bits off implies a good calibration.
  2. Bits 2-21 used for HIRS, but only bits 2-16 used for AMSU-A and only bits 2-6 used for AMSU-B

0'33'035 - Manual/automatic quality control

 C 033035
     0 Automatic quality control passed and not manually checked
     1 Automatic quality control passed and manually checked and passed
     2 Automatic quality control passed and manually checked and deleted
     3 Automatic quality control failed and manually not checked
     4 Automatic quality control failed and manually checked and failed
     5 Automatic quality control failed and manually checked and re-inserted
     6 Automatic quality control flagged data as questionable and not manually checked
     7 Automatic quality control flagged data as questionable and manually checked and failed
     8 Manually checked and failed
    15 Missing value

9-14 Reserved

0'33'037 - Wind correlation error

 F 033037
     1 U departure from guess
     2 V departure from guess
     3 U and V departure from guess
     4 U acceleration
     5 V acceleration
     6 U and V acceleration
     7 Possible land feature
     8 U acceleration and possible land feature
     9 V acceleration and possible land feature
    10 U and V acceleration and possible land feature
    11 Bad wind guess
    12 Correlation failure
    13 Search box off edge of area
    14 Target box off edge of area
    15 Pixel brightness out of bounds (noisy line)
    16 Target outside of latitude/longitude box
    17 Target outside of pressure minimum/maximum
    18 Autoeditor flagged slow vector
    19 Autoeditor flagged vectors
All 20 Missing value

0'33'038 - Quality Flags for ground-based GNSS data

 F 033038
     1 Total Zenith Delay quality is considered poor
     2 GALILEO satellites used
     3 GLONASS satellites used
     4 GPS satellites used
     5 Meteorological data applied
     6 Atmospheric loading correction applied
     7 Ocean tide loading applied
     8 Climate quality data processing
     9 Near-real time data processing
All 10 Missing value

0'33'039 - Quality flags for Radio Occultation data

 F 033039
     1 Non-nominal quality
     2 Offline product
     3 Ascending occultation flag
     4 Excess Phase processing non-nominal
     5 Bending Angle processing non-nominal
     6 Refractivity processing non-nominal
     7 Meteorological processing non-nominal
     14 Background profile non-nominal
     15 Background (i.e. not retrieved) profile present
All 16 Missing value
 
8-13 Reserved

0'33'041 - Attribute of following value

 C 033041
     0 The following value is the true value
     1 The following value is higher than the true value (the measurement hit the lower limit of the instrument)
     2 The following value is lower than the true value (the measurement hit the higher limit of the instrument)
     3 Missing value

Note:

  1. This descriptor will be associated with visibility data or height of cloud data to specify if the value is bounded. If the reported data is the true value, the code figure is 0. However, the measurement can hit the limit of the instrument measurement capability. If the reported value is higher than the true value, the code figure is 1; if the reported value is lower than the true value, the code figure is 2.

0'33'042 - Type of limit represented by following value

 C 033042
     0 Exclusive lower limit (>)
     1 Inclusive lower limit (>=)
     2 Exclusive upper limit (<)
     3 Inclusive upper limit (=<)
     7 Missing value
 
4-6 Reserved

0'33'043 - AST confidence

 F 033043
     1 Sea MDS. Nadir only SST retrieval used 3.7 Micron channel. Land MDS reserved
     2 Sea MDS. Dual view SST retrieval used 3.7 Micron channel. Land MDS reserved
     3 Nadir view contains day time data
     4 Forward view contains day time data
 All 8 Missing value
 
5-7 Reserved

0'33'044 - ASAR quality information

 F 033044
     1 Input data mean outside nominal range flag
     2 Input data standard deviation outside nominal range flag
     3 Number of input data gaps > threshold value
     4 Percentage of missing lines > threshold value
     5 Doppler centroid uncertain.  Confidence measure <  specific value
     6 Doppler ambiguity estimate uncertain.  Confidence measure < specific value
     7 Output data mean outside nominal range flag
     8 Output data standard deviation outside nominal range flag
     9 Chirp reconstruction failed or is of low quality flag
    10 Data set missing
    11 Invalid downlink parameters
    12 Azimuth cut-off iteration count.  The azimuth cut-off fit did not converge within a minimum number of iterations
    13 Azimuth cut-off fit did not converge within a minimum number of iterations
    14 Phase information confidence measure.  The imaginary spectral peak is less than a minimum threshold, or the zero lag shift is greater than a minimum threshold
 
All 15: Missing value

0'33'047 - Measurement confidence data

 F 033047
     1 Error detected and attempts to recover made
     2 Anomaly in on-board data handling  (OBDH) value detected
     3 Anomaly in Ultra Stable Oscillator Processing (USOP) value detected
     4 Errors detected by on-board computer
     5 Automatic gain control (AGC) out of range
     6 Rx delay fault.  Rx distance out of range
     7 Wave form samples fault identifier. Error
     8 S-band anomaly error detected
    12 Brightness temperature (channel 1) out of range
    13 Brightness temperature (channel 2) out of range
    14 Reserved
    15 Ku Ocean retracking error
    16 S Ocean retracking error
    17 Ku Ice 1 retracking error
    18 S Ice 1 retracking error
    19 Ku Ice 2 retracking error
    20 S Ice 2 retracking error
    21 Ku Sea Ice retracking error
    22 Arithmetic fault error
    23 Meteo data state. No map
    24 Meteo data state. 1 map
    25 Meteo data state 2 maps degraded
    26 Meteo data state 2 maps nominal
    27 Orbit propagator status for propagation mode, several errors
    28 Orbit propagator status for propagation mode, warning detected
    29 Orbit propagator status for initialization mode, several errors
    30 Orbit propagator status for initialization mode, warning detected
All 31 Missing value
 
9-11 Reserved

0'33'048 - Confidence measure of SAR inversion

 C 033048
     0 Inversion successful
     1 Inversion not successful
     2 Reserved
     3 Missing value

0'33'049 - Confidence measure of wind retrieval

 C 033049
     0 External wind direction used during inversion
     1 External wind direction not used during inversion
     2 Reserved
     3 Missing value

0'33'050 - Global GTSPP quality flag

 C 033050
     0 Unqualified
     1 Correct value (all checks passed)
     2 Probably good but value inconsistent with statistics (differ from climatology)
     3 Probably bad (spike, gradient,... if other tests passed)
     4 Bad value, impossible value (out of scale, vertical instability, constant profile)
     5 Value modified during quality control
     8 Interpolated value
     9 Good for operational use; Caution; check literature for other uses
    15 Missing value

6-7, 10-14 Reserved

0'33'052 - S band ocean retracking quality

 F 033052
  1-20  First 20 least significant bits correspond to the 20 values
        (one per data block containing: 0=valid measurement, 1=invalid).
        Bit 1 applies to the 20th data block.
 All 21 Missing value

0'33'053 - Ku band ocean retracking quality

 F 033053
  1-20  First 20 least significant bits correspond to the 20 values
        (one per data block containing: 0=valid measurement, 1=invalid).
        Bit 1 applies to the 20th data block.
 All 21 Missing value

0'33'060 - GQisFlagQual - individual IASI-System quality flag

 C 033060
     0 Good
     1 Bad
     2 Reserved
     3 Missing value

0'33'070 - Total ozone quality

 C 033070
     0	Good retrieval
     1	Bad aerosol information flag or NOAA-16 radiance anomaly
     2	Solar zenith angle greater than 84 degrees
     3	380nm residue greater than limit
     4	Ozone inconsistency
     5	Difference between profile ozone and step 3 total ozone exceeds threshold (set to 25 DU)
     6	Step 1 ozone iteration did not converge
     7	Any channel residue greater than 16 or bad radiance
    15	Missing value

8-14 Reserved

0'33'071 - Profile ozone quality

 C 033071
     0	Good retrieval
     1	Solar zenith angle greater than 84 degrees
     2	Difference between step 3 and profile total ozone greater than limit (25 DU)
     3	Average final residue for wavelengths used in retrieval greater than threshold
     4	Final residue greater than 3 times a priori error
     5	Difference between retrieved and a priori greater than 3 times a priori error
     6	Non-convergent solution
     7	Upper level profile anomaly or stray light anomaly
     8	Initial residue greater than 18.0 N-value units
    15	Missing value

9-14 Reserved

0'33'072 - Ozone error

 C 033072
     0	Good retrieval
     1	Reflectivity out of range
     2	Larger Pixels (Number of cross-track pixels less than 32) or backward scans Error
     3	Solar zenith angle greater than 88
     4	Latitude/longitude out of range
     5	Viewing zenith angle or solar zenith angle out of range
     6	Step-one process failed in general
     7	First guess ozone out of range
     8	Too many iterations (exceed 8)
     9	Step-one residue calculation failed
    10	Step-two process failed in general
    11	First guess ozone profile out of range
    12	Step-two ozone value out of range
    13	Step-two residue calculation failed
    14	Step-three process failed in general
    15	Polarization Correction Accuracy Alert
    16	Radiance or irradiance less or equal to zero
    31	Missing value

17-30 Reserved

0'33'075 - Scan-level quality flags

 B 033075
     1 Gap in Raw Data Record (RDR) data detected (i.e., missing scan(s) preceding the current scan)
     2 Recorded time is not in sequence (i.e., the scan start time is out of sequence)
     3 Lambda monitored calculation cannot be updated (see Note 1)
     4 The measured temperatures of any instrument components (e.g., beam-splitter, scan mirror, scan baffle, etc.) are outside the allowable ranges (see Note 2)
     5 At least one of the monitored instrument temperatures has drifted more than a specified tolerance value

6-12 Reserved
All 13 Missing value

Note:

(1) Set to 1 if laser wavelength calculation is invalid due to laser diode bias current and/or laser diode temperature measurements being outside the predetermined allowable ranges. These ranges are tunable. In this case Lamda monitored calculation shall have 1 bit per scan.

(2) These temperatures are used to compute the “environmental” contribution to the Internal Calibration Target (ICT) radiances. When this bit is set to 1, the invalid temperatures shall be replaced with the validated temperature values of the ICT.


0'33'076 - Calibration quality flags

 B 033076
     1 Lunar intrusion on first deep space view (see Note)
     2 Lunar intrusion on second deep space view (see Note)

3-8 Reserved
All 9 Missing value

Note: Set to 1 if at least one spectrum in the deep space moving average was invalidated due to a lunar intrusion.


0'33'077 - Field-of-view quality flags

 B 033077
     1 Degraded SDR quality
     2 Invalid SDR* quality (see Note 1)
     3 Invalid SDR* geolocation information
     4 Degraded radiometric calibration
     5 Invalid radiometric calibration (see Note 2)
     6 Degraded spectral calibration
     7 Invalid spectral calibration (see Note 3)
     8 Fringe count error detected and corrected (see Note 4)
     9 Day/night indicator (see Note 5)
    10 Invalid RDR** data (see Note 6)
    11 Significant fringe count error detected (see Note 7)
    12 Bit trim failed

13-18 Reserved
All 19 Missing value

* SDR = Science data record
** RDR = Raw data record

Note:

(1) SDR quality is invalid if bit trim failed (see bit 12), or fringe count error detected (see bit 11), or invalid Raw data record (RDR) data (see bit 10), or invalid radiometric calibration (see bit 5), or invalid spectral calibration (see bit 7).

(2) Radiometric calibration is invalid if radiometric calibration is not performed, or if it is performed with invalid calibration data (e.g., deep space window size = 0).

(3) Spectral calibration is invalid if fringe count error detected and corrected (see bit 8), or if Neon calibration is suspect and Lamda monitored calculation cannot be updated (see “Scan-level quality flags" (0-33-075) - bit 3).

(4) Set to 0 if no fringe count error was detected (see bit 11), or a fringe count error was detected but it was not corrected.

(5) Set to 0 if day (solar zenith angle < 90). Set to 1 if night (solar zenith angle > 90).

(6) This flag indicates the instrument exhibited operational errors and the associated interferogram(s) is/are excluded from SDR processing.

(7) This flag indicates a significant number of fringes have been missed, shifting the interferogram ZPD outside of a window monitored by the instrument, and the interferogram is excluded from SDR processing.


0'33'078 - Geolocation quality

 C 033078
     0 Nominal - altitude and Ephemeris data available
     1 Missing at most a small gap of altitude and Ephemeris data
     2 Missing more than a small gap of altitude and Ephemeris data, but no more than a granule boundary
     3 Missing more than a granule boundary of altitude and Ephemeris data
    15 Missing

4-14 Reserved

0'33'079 - Granule level quality flags

 F 033079
     6 The No. 1-No.7 health checks failed
     7 The No. 8-No.15 health checks failed
     8 The No. 16-No.23 health checks failed
     9 The No. 24-No.31 health checks failed
    10 The No. 32-No.39 health checks failed
    11 The No. 40-No.47 health checks failed
    12 The No. 48-No.55 health checks failed
    13 The No. 56-No.63 health checks failed
    14 The No. 64-No.70 health checks failed
    15 Quadratic correction applied to the radiometric transfer function for non-linearity correction Validation

All 16 Missing value
1-5 Reserved

0'33'080 - Scan level quality flags

 F 033080
     7 Divide-by-zero condition or computation loop failed to converge in the K/Ka and V (KAV) Band PRT
     8 Divide-by-zero condition or computation loop failed to converge in the WG Band PRT
     9 Divide-by-zero condition or computation loop failed to converge in the K/Ka, V, W, G Band Receiver Shelf PRT K temperature computation
    10 Out of range condition for the K/Ka and V Band PRT
    11 Out of range condition for the WG Band PRT
    12 KAV PRT temperature inconsistency
    13 WG PRT temperature inconsistency
    14 Time Sequence Error
    15 Data Gap - Missing scan(s) preceding the current scan
    16 KAV PRT Sufficiency - Insufficient KAV PRT data are available
    17 WG PRT Sufficiency - Insufficient WG PRT data are available
    18 Space View antenna position error
    19 Blackbody antenna position error

All 20 Missing value
1-6 Reserved

0'33'081 - Channel data quality flags

 F 033081
     3 Moon in Space View
     4 Gain Error - The lowest blackbody count is smaller than or equal to the highest space view count in a scan
     5 Calibration With Fewer Than Preferred Samples
     6 Space View Data Sufficiency Check - Insufficient space view samples are available
     7 Blackbody View Data Sufficiency Check - Insufficient blackbody view samples are available
     8 Out of range condition for the Space View
     9 Out of range condition for the BlackBody View
    10 Space view inconsistency
    11 BlackBody view inconsistency

All 12 Missing value
1-2 Reserved

Class 35


0'35'000 - FM and Regional Code number

 C 035000
   000-099 International FM Codes
   100-199 RA I Codes
   200-299 RA II Codes
   300-399 RA III Codes
   400-499 RA IV Codes
   500-599 RA V Codes
   600-699 RA VI Codes
   700-799 Antarctic Codes
   800-999 Reserved
   1000-1022 Not used
   1023 Missing value

0'35'001 - Time-frame for monitoring

 C 035001
     0 Real time
     1 Near-real time
     2 Non-real time
     7 Missing value

3-6 Reserved

0'35'030 - Discrepancies in the availability of expected data

 C 035030
     0 No discrepancies
     1 Non-compliance with standard and recommended practices and procedures including those of monitoring
     2 Catalogues of meteorological bulletins not updated in a timely manner
     3 Incorrect routeing directories
     4 Lack of flexibility in the routeing arrangements
     5 Deficiencies in the operation of GTS centres and circuits
     6 Loss of data or delays in relaying data on the GTS
     7 Routeing of data different from the routeing provided in the plan
     8 Various malpractices
    15 Missing value

9-14 Reserved

0'35'031 - Qualifier on monitoring results

 C 035031
     1 Sufficient and all of acceptable quality
     2 Sufficient but partly of acceptable quality
     3 Insufficient but all of acceptable quality
     4 Insufficient and of unacceptable quality
     5 Some messages not complete
     6 Suspect or wrongly coded groups could not be interpreted confidently
     7 Gross coding errors
     8 Transmission sequential order not observed
     9 Report completely garbled and thus discarded
    10 Deficiencies identified and rectified
    11 Deficiencies identified but not rectified
    12 Deficiencies not identified
    13 Measuring errors
    14 Mutual inconsistency
    15 Temporal inconsistency
    16 Forecast error
    17 Bias
    18 Improve system of quality control
    19 Expand training programmes
   123 Missing value
 
20-98 Reserved 99-122 Not used

0'35'032 - Cause of missing data

 C 035032
     1 Data groups missing due to radio fading
     2 Data groups missing due to outage of centre
     3 Data groups missing due to outage of circuit
     4 Non-implementation or maintenance of required RBSN density
     5 Shortage of qualified staff to man stations
     6 Lack of consumables
     7 Instrument failure
     8 Non-adherence to telecommunication procedures
     9 Some observing programmes ceased
    15 Missing value

10-14 Not used

0'35'033 - Observation and collection deficiency

 C 035033
     1 No deficiency
     2 Observations not made regularly
     3 Observations not made at right time
     4 Observations made but not disseminated
     5 Observations made and sent to incorrect users
     6 Collection not received
     7 Collection transmitted late
     8 Collection not transmitted
     9 Difficulties in HF propagation and selection of suitable frequency
    10 Difficulties in maintenance of communication equipment at remote stations
    11 No alternative arrangement for routeing meteorological observation
   123 Missing value
 
12-99 Reserved 100-122 Not used

0'35'034 - Statistical trends for availability of data (during the survey period(s))

 C 035034
     1 Slight improvement
     2 Significant improvement
     3 Most significant improvement
     4 Steady
     5 Decreasing
     6 Efforts required to improve night-time observations
     7 Missing value

0'35'035 - Reason for termination

 C 035035
     0 Reserved
     1 Balloon burst
     2 Balloon forced down by icing
     3 Leaking or floating balloon
     4 Weak or fading signal
     5 Battery failure
     6 Ground equipment failure
     7 Signal interference
     8 Radiosonde failure
     9 Excessive missing data frames
    10 Reserved
    11 Excessive missing temperature
    12 Excessive missing pressure
    13 User terminated
    30 Other
    31 Missing value

14-29 Reserved

Class 40


0'40'005 - Soil moisture correction flags

 F 040005
     1 Soil moisture between -20% and 0%
     2 Soil moisture between 100% and 120%
     3 Correction of wet backscatter reference
     4 Correction of dry backscatter reference
     5 Correction of volume scattering in sand
 All 8 Missing value
 
6-7 Reserved

Note:

  1. The nominal range for the surface soil moisture is 0% - 100%. In extreme cases, the extrapolated backscatter at 40 degrees incidence angle may exceed the dry or the wet backscatter reference. In these cases, the value provided by the measurement process of surface soil moisture is, respectively, less than 0% or more than 100%.

0'40'006 - Soil moisture processing flags

 F 040006
     1 Not soil
     2 Sensitivity to soil moisture below limit
     3 Azimuthal noise above limit
     4 Backscatter Fore-Aft beam out of range
     5 Slope Mid-Fore beam out of range
     6 Slope Mid-Aft beam out of range
     7 Soil moisture below -20%
     8 Soil moisture above 120%
All 16 Missing value
 
9-15 Reserved

Note:

  1. See Note under Flag table 0 40 005.

0'40'011 - Interpolation flag

 F 040011
     1	Mean sea surface (MSS) interpolation flag
     2	Ocean tide solution 1 interpolation flag (0=4 points over ocean, 1=less than 4 points)
     3	Ocean tide solution 2 interpolation flag (0=4 points over ocean, 1=less than 4 points)
     4	Meteorological data interpolation flag (0=4 points over ocean, 1=less than 4 points)
 All 8 Missing value
 
5-7 Reserved

0'40'012 - Radiometer data quality flag

 F 040012	(0 is good, 1 is bad)
     1	18.7 GHz brightness temperature
     2	23.8 GHz brightness temperature
     3	34 GHz brightness temperature
 All 8 Missing value
 
4-7 Reserved

0'40'013 - Radiometer brightness temperature interpretation flag

 C 040013
     0	Interpolation with no gap between JMR* data
     1	Interpolation with gaps between JMR* data
     2	Extrapolation of JMR* data
     3	Failure of extrapolation and interpolation
     7	Missing value
 
4-6 Reserved

* JMR stands for "JASON-1 Microwave Radiometer"


0'40'023 - Auxiliary altimeter state flags

 F 040023
     1 Band sequence (0 = 3Ku_1C_3Ku, 1 = 2Ku_1C_2Ku)
     2 C band frequency (0 = 320 MHz, 1 = 100 MHz)
     3 C band status (0 = On, 1 = Off)
     4 Ku band status (0 = On, 1 = Off)

All 5 bits Missing

0'40'024 - Meteorological map availability

 C 040024
     0 2 maps available (6 hours apart)
     1 2 maps available (> 6 hours apart)
     2 1 map available; data extrapolated
     3 No maps used Validation
     7 Missing value

4-6 Reserved

0'40'025 - Interpolation flag for mean diurnal tide

 C 040025
     0 Good
     1 Bad
     2 Reserved
     3 Missing value

Update history

This is version 14.1 of Cipher BUFR and CREX Code & Flag Table, created from original WMO documents by Northern Lighthouse Ltd.