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Id	Values
001003	WMO Region number/geographical area Code/Flag Figure Description Status 0 Antarctica 1 Region I 2 Region II 3 Region III 4 Region IV 5 Region V 6 Region VI 7 Missing value
001024	Wind speed source Code/Flag Figure Description Status 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
001028	Aerosol optical depth (AOD) source Code/Flag Figure Description Status 0 No AOD data available 1 NESDIS 2 NAVOCEANO 3 NAAPS 4 MERIS 5 AATSR 31 Missing value
001029	SSI source Code/Flag Figure Description Status 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
001036	Agency in charge of operating the observing platform Code/Flag Figure Description Status 36001 Australia, Bureau of Meteorology (BoM) 36002 Australia, Joint Australian Facility for Ocean Observing Systems (JAFOOS) 36003 Australia, the Commonwealth Scientific and Industrial Research Organization (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 Développement (IRD) 250002 France, Institut Français de Recherche pour l'Exploitation de la mer (IFREMER) 276001 Germany, Bundesamt fuer Seeschiffahrt und Hydrographie (BSH) 276002 Germany, Institut fuer Meereskunde, Kiel 356001 India, National Institute of Oceanography (NIO) 356002 India, National Institute for Ocean Technology (NIOT) 356003 India, National Centre for Ocean Information Service 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 Republic of Korea, Seoul National University 410002 Republic of Korea, Korea Ocean Research and Development Institute (KORDI) 410003 Republic of Korea, Meteorological Research Institute 540001 New Caledonia, Institut de Recherche pour le Développement (IRD) 554001 New Zealand, National Institute of Water and Atmospheric Research (NIWA) 643001 Russian Federation, State Oceanographic Institute of Roshydromet 643002 Russian Federation, Federal Service for Hydrometeorology and Environmental Monitoring 724001 Spain, Instituto Español 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
001038	Source of sea ice fraction Code/Flag Figure Description Status 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
001052	Platform transmitter ID Code/Flag Figure Description Status 0 Primary 1 Secondary 2 Reserved 3 Missing value
001090	Technique for making up initial perturbations Code/Flag Figure Description Status 0 Lagged-average forecasting (LAF) 1 Breeding 2 Singular vectors 3 Multiple analysis cycles 255 Missing value
001092	Type of ensemble forecast Code/Flag Figure Description Status 0 Unperturbed high-resolution control forecast 1 Unperturbed low-resolution control forecast 2 Negatively perturbed forecast 3 Positively perturbed forecast 255 Missing value
001101	State identifier Code/Flag Figure Description Status 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 Côte 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 Guinea-Bissau 124 Kenya 125 Lesotho 126 Liberia 127 Libya 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 Tome and Principe 141 Senegal 142 Seychelles 143 Sierra Leone 144 Somalia 145 South Africa 146 Spain (RA I) 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 Kyrgyzstan 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 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 300 Argentina 301 Bolivia (Plurinational State of) 302 Brazil 303 Chile 304 Colombia 305 Ecuador 306 France (RA III) 307 Guyana 308 Paraguay 309 Peru 310 Suriname 311 Uruguay 312 Venezuela (Bolivarian Republic of) 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 Curaçao and Sint Maarten 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 (Bolivarian Republic of) 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 (RA VI) 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
002001	Type of station Code/Flag Figure Description Status 0 Automatic 1 Manned 2 Hybrid: both manned and automatic 3 Missing value
002002	Type of instrumentation for wind measurement Code/Flag Figure Description Status 1 Certified instruments 2 Originally measured in knots 3 Originally measured in km h-1
002003	Type of measuring equipment used Code/Flag Figure Description Status 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 measuring equipment but pressure element failed during ascent 15 Missing value
002004	Type of instrumentation for evaporation measurement or type of crop for which evapotranspiration is reported Code/Flag Figure Description Status 0 Evaporation 1 Evaporation 2 Evaporation 3 Evaporation 4 Evaporation 5 Evapotranspiration 6 Evapotranspiration 7 Evapotranspiration 8 Evapotranspiration 9 Evapotranspiration 15 Missing value
002013	Solar and infrared radiation correction Code/Flag Figure Description Status 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
002015	Radiosonde completeness Code/Flag Figure Description Status 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
002016	Radiosonde configuration Code/Flag Figure Description Status 1 Train regulator 2 Light unit 3 Parachute 4 Rooftop release
002017	Correction algorithms for humidity measurements Code/Flag Figure Description Status 0 No corrections 1 Time lag correction provided by the manufacturer 2 Solar radiation correction provided by the manufacturer 3 Solar radiation and time lag correction provided by the manufacturer 31 Missing value
002020	Satellite classification Code/Flag Figure Description Status 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
002021	Satellite instrument data used in processing Code/Flag Figure Description Status 1 High-resolution infrared sounder (HIRS) 2 Microwave sounding unit (MSU) 3 Stratospheric sounding unit (SSU) 4 AMI (advanced microwave instrument) wind mode 5 AMI (advanced microwave instrument) wave mode 6 AMI (advanced microwave instrument) image mode 7 Radar altimeter 8 ATSR (along-track scanning radiometer)
002022	Satellite data-processing technique used Code/Flag Figure Description Status 1 Processing technique not defined 2 Automated statistical regression 3 Clear path 4 Partly cloudy path 5 Cloudy path
002023	Satellite-derived wind computation method Code/Flag Figure Description Status 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 motion observed in water vapour channel (cloud or clear air not specified) 13 Root-mean-square 14 Reserved 15 Missing value
002024	Integrated mean humidity computational method Code/Flag Figure Description Status 0 Reserved 1 Table with full range of humidity variation in layer 2 Regression technique on 2 humidity values in layer 15 Missing value
002025	Satellite channel(s) used in computation Code/Flag Figure Description Status 1 Reserved 2 HIRS 3 MSU 6 HIRS 7 MSU 10 HIRS (1, 2, 3, 8, 9, 16, 17) 11 HIRS (1, 2, 3, 9, 17) 12 MSU 15 HIRS 16 HIRS 17 MSU 18 SKINTK (ocean only) 21 HIRS 22 SSU 23 MSU (3, 4) 24 Reserved
002030	Method of current measurement Code/Flag Figure Description Status 0 Reserved 1 ADCP (Acoustic Doppler Current Profiler) 2 GEK (Geomagnetic ElectroKinetograph) 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
002031	Duration and time of current measurement Code/Flag Figure Description Status 0 Reserved 1 between H-1 and H 2 between H-1 and H 3 between H-1 and H 4 between H-1 and H 5 between H-2 and H-1 6 between H-2 and H-1 7 between H-2 and H-1 8 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 value
002032	Indicator for digitization Code/Flag Figure Description Status 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
002033	Method of salinity/depth measurement Code/Flag Figure Description Status 0 No salinity measured 1 In situ sensor, accuracy better than 0.02 ‰ 2 In situ sensor, accuracy less than 0.02 ‰ 3 Sample analysis 7 Missing value
002034	Drogue type Code/Flag Figure Description Status 0 Unspecified drogue 1 Holey sock 2 TRISTAR 3 Window shade 4 Parachute 5 Non-Lagrangian sea anchor 31 Missing value
002036	Buoy type Code/Flag Figure Description Status 0 Drifting buoy 1 Fixed buoy 2 Sub-surface float (moving) 3 Missing value
002037	Method of tidal observation Code/Flag Figure Description Status 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 value
002038	Method of water temperature and/or salinity measurement Code/Flag Figure Description Status 0 Ship intake 1 Bucket 2 Hull contact sensor 3 Reversing thermometer 4 STD/CTD sensor 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
002039	Method of wet-bulb temperature measurement Code/Flag Figure Description Status 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
002040	Method of removing velocity and motion of platform from current Code/Flag Figure Description Status 0 Ship's velocity removed by bottom tracking 1 Ship's velocity removed by bottom tracking 2 Ship's velocity removed by bottom tracking 3 Ship's velocity removed by navigation 4 Ship's velocity removed by navigation 5 Ship's velocity removed by navigation 6 Doppler current profiling method not used 15 Missing value
002041	Method for estimating reports related to synoptic features Code/Flag Figure Description Status 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
002042	Indicator for sea surface current speed Code/Flag Figure Description Status 0 Value originally reported in m/s 1 Value originally reported in knots 2 No sea current data available 3 Missing value
002044	Indicator for method of calculating spectral wave data Code/Flag Figure Description Status 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
002045	Indicator for type of platform Code/Flag Figure Description Status 0 Sea station 1 Automatic data buoy 2 Aircraft 3 Satellite 15 Missing value
002046	Wave measurement instrumentation Code/Flag Figure Description Status 0 Reserved for future use 1 Heave sensor 2 Slope sensor 15 Missing value
002047	Deep-ocean tsunameter type Code/Flag Figure Description Status 0 Reserved 1 DART II (PMEL) 2 DART ETD 3 SAIC Tsunami Buoy (STB) 4 GFZ - Potsdam 5 INCOIS (India) 6 InaBuoy (Indonesia) 7 Envirtech 127 Missing value
002048	Satellite sensor indicator Code/Flag Figure Description Status 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
002049	Geostationary satellite data-processing technique used Code/Flag Figure Description Status 1 Processing technique not defined 2 Simultaneous physical retrieval 3 Clear sounding 4 Cloudy sounding
002050	Geostationary sounder satellite channels used Code/Flag Figure Description Status 1 14.71 2 14.37 3 14.06 4 13.64 5 13.37 6 12.66 7 12.02 8 11.03 9 9.71 10 7.43 11 7.02 12 6.51 13 4.57 14 4.52 15 4.45 16 4.13 17 3.98 18 3.74 19 0.969
002051	Indicator to specify observing method for extreme temperatures Code/Flag Figure Description Status 0 Reserved 1 Maximum/minimum thermometers 2 Automated instruments 3 Thermograph 15 Missing value
002052	Geostationary imager satellite channels used Code/Flag Figure Description Status 1 0.55 - 0.75 2 3.9 3 6.7 4 10.7 5 12.0
002053	GOES-I/M brightness temperature characteristics Code/Flag Figure Description Status 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
002054	GOES-I/M soundings parameter characteristics Code/Flag Figure Description Status 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
002055	Geostationary soundings statistical parameters Code/Flag Figure Description Status 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 radiosonde versus sounder 7 Statistics generated for radiosonde 8 Statistics generated for first guess 15 Missing value
002056	Geostationary soundings accuracy statistics Code/Flag Figure Description Status 0 Sums of differences 1 Sums of squared differences 2 Sample size 3 Minimum difference 4 Maximum difference 15 Missing value
002057	Origin of first-guess information for GOES-I/M soundings Code/Flag Figure Description Status 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
002058	Valid times of first guess information for GOES-I/M soundings Code/Flag Figure Description Status 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
002059	Origin of analysis information for GOES-I/M soundings Code/Flag Figure Description Status 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
002060	Origin of surface information for GOES-I/M soundings Code/Flag Figure Description Status 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
002061	Aircraft navigational system Code/Flag Figure Description Status 0 Inertial navigation system 1 OMEGA 7 Missing value
002062	Type of aircraft data relay system Code/Flag Figure Description Status 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
002064	Aircraft roll angle quality Code/Flag Figure Description Status 0 Good 1 Bad 2 Reserved 3 Missing value
002066	Radiosonde ground receiving system Code/Flag Figure Description Status 0 InterMet IMS 2000 1 InterMet IMS 1500C 62 Other 63 Missing value
002070	Original specification of latitude/longitude Code/Flag Figure Description Status 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
002080	Balloon manufacturer Code/Flag Figure Description Status 0 Kaysam 1 Totex 2 KKS 62 Other 63 Missing value
002081	Type of balloon Code/Flag Figure Description Status 0 GP26 1 GP28 2 GP30 3 HM26 4 HM28 5 HM30 6 SV16 30 Other 31 Missing value
002083	Type of balloon shelter Code/Flag Figure Description Status 0 High bay 1 Low bay 2 Balloon-inflated launch system (BILS) 3 Roof-top BILS 14 Other 15 Missing value
002084	Type of gas used in balloon Code/Flag Figure Description Status 0 Hydrogen 1 Helium 2 Natural gas 14 Other 15 Missing value
002095	Type of pressure sensor Code/Flag Figure Description Status 0 Capacitance aneroid 1 Derived from GPS 2 Resistive strain gauge 30 Other 31 Missing value
002096	Type of temperature sensor Code/Flag Figure Description Status 0 Rod thermistor 1 Bead thermistor 2 Capacitance bead 30 Other 31 Missing value
002097	Type of humidity sensor Code/Flag Figure Description Status 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
002099	Polarization Code/Flag Figure Description Status 0 HH polarization 1 VV polarization 2 HV polarization real valued component 3 HV polarization imaginary valued component 7 Missing value
002101	Type of antenna Code/Flag Figure Description Status 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
002103	Radome Code/Flag Figure Description Status 1 Radar antenna is protected by a radome
002104	Antenna polarization Code/Flag Figure Description Status 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
002115	Type of surface observing equipment Code/Flag Figure Description Status 0 PDB 1 RSOIS 2 ASOS 3 Psychrometer 4 F420 30 Other 31 Missing value
002119	Instrument operations Code/Flag Figure Description Status 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
002131	Sensitivity time control (STC) Code/Flag Figure Description Status 1 STC operational
002137	Radar dual PRF ratio Code/Flag Figure Description Status 1 3:2 2 4:3 3 5:4 15 Missing value
002138	Antenna rotation direction Code/Flag Figure Description Status 1 Clockwise rotation 2 Counterclockwise rotation 3 Missing value
002143	Ozone instrument type Code/Flag Figure Description Status 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 bubler 18 Filter Ozonometer M-124 19 ECC sonde 127 Missing value
002144	Light source type for Brewer spectrophotometer Code/Flag Figure Description Status 0 Direct sun 1 Direct sun, attenuator #1 2 Direct sun, attenuator #2 3 Focused moon 4 Focused sun 5 Focused sun corrected with adjacent sky measurements 6 Zenith sky 15 Missing value
002145	Wavelength setting for Dobson instruments Code/Flag Figure Description Status 0 Wavelengths AD ordinary setting 1 Wavelengths BD ordinary setting 2 Wavelengths CD ordinary setting 3 Wavelengths CC' ordinary setting 4 Wavelengths AD focussd image 5 Wavelengths BD focused image 6 Wavelengths CD focused image 7 Wavelengths CC' focused image 15 Missing value
002146	Source conditions for Dobson instruments Code/Flag Figure Description Status 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
002148	Data collection and/or location system Code/Flag Figure Description Status 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
002149	Type of data buoy Code/Flag Figure Description Status 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 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
002150	TOVS/ATOVS/AVHRR instrumentation channel number Code/Flag Figure Description Status 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
002151	Radiometer identifier Code/Flag Figure Description Status 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
002152	Satellite instrument used in data processing Code/Flag Figure Description Status 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
002158	RA-2 instruments Code/Flag Figure Description Status 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
002159	MWR instruments Code/Flag Figure Description Status 1 Temperature inconsistency 2 Data is missing 3 Redundancy channel 4 Power bus protection 5 Overvoltage/Overload protection 6 Reserved 7 Reserved
002160	Wave length of the radar Code/Flag Figure Description Status 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
002163	Height assignment method Code/Flag Figure Description Status 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 per cent height 10 Cumulative contribution function - 50 per cent height 11 Cumulative contribution function - 90 per cent height 12 Cumulative contribution function - height of maximum gradient 13 IR / two WV channel ratioing method 14 Composite height assignment 15 Missing value
002164	Tracer correlation method Code/Flag Figure Description Status 0 LP - Norms least square minimum 1 EN - Euclidean norm with radiance correlation 2 CC - Cross correlation 7 Missing value
002165	Radiance type flags Code/Flag Figure Description Status 1 Clear path 2 Partly cloudy path 3 Cloudy path 4 Apodized 5 Unapodized 6 Reconstructed 7 Cloud cleared
002166	Radiance type Code/Flag Figure Description Status 0 Type not defined 1 Automated statistical regression 2 Clear path 3 Partly cloudy path 4 Cloudy path 15 Missing value
002167	Radiance computational method Code/Flag Figure Description Status 0 Method not defined 1 1b raw radiance 2 Processed radiance 15 Missing value
002169	Anemometer type Code/Flag Figure Description Status 0 Cup rotor 1 Propeller rotor 2 Wind Observation Through Ambient Noise (WOTAN) 3 Sonic 15 Missing value
002170	Aircraft humidity sensors Code/Flag Figure Description Status 0 SpectraSensors WVSS-II, Version 1 1 SpectraSensors WVSS-II, Version 2 2 SpectraSensors WVSS-II, Version 3 62 Other 63 Missing Value
002172	Product type for retrieved atmospheric gases Code/Flag Figure Description Status 0 Reserved 1 Retrieval from a nadir sounding 2 Retrieval from a limb sounding 255 Missing value
002175	Method of precipitation measurement Code/Flag Figure Description Status 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
002176	Method of state of ground measurement Code/Flag Figure Description Status 0 Manual observation 1 Video camera method 2 Infrared method 3 Laser method 14 Others 15 Missing value
002177	Method of snow depth measurement Code/Flag Figure Description Status 0 Manual observation 1 Ultrasonic method 2 Video camera method 3 Laser method 14 Others 15 Missing value
002178	Method of liquid content measurement of precipitation Code/Flag Figure Description Status 0 Manual observation 1 Optical method 2 Capacitive method 14 Others 15 Missing value
002179	Type of sky condition algorithm Code/Flag Figure Description Status 0 Manual observation 1 VAISALA algorithm 2 ASOS (FAA) algorithm 3 AWOS (Canada) algorithm 14 Others 15 Missing value
002180	Main present weather detecting system Code/Flag Figure Description Status 0 Manual observation 1 Optical scatter system combined with precipitation occurrence sensing system 2 Forward and/or backscatter system of visible light 3 Forward and/or backscatter system of infrared light 4 Infrared light emitting diode (IRED) system 5 Doppler radar system 14 Others 15 Missing value
002181	Supplementary present weather sensor Code/Flag Figure Description Status 1 Rain detector 2 Freezing rain sensor 3 Ice detection sensor 4 Hail and ice pellet sensor 20 Others
002182	Visibility measurement system Code/Flag Figure Description Status 0 Manual measurement 1 Transmissometer system (base > 25 m) 2 Transmissometer system (base < 25 m) 3 Forward scatter system 4 Backscatter system 14 Others 15 Missing value
002183	Cloud detection system Code/Flag Figure Description Status 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
002184	Type of lightning detection sensor Code/Flag Figure Description Status 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
002185	Method of evaporation measurement Code/Flag Figure Description Status 0 Manual measurement 1 Balanced floating method 2 Pressure method 3 Ultrasonic method 4 Hydraulic method 14 Others 15 Missing value
002186	Capability to detect precipitation phenomena Code/Flag Figure Description Status 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
002187	Capability to detect other weather phenomena Code/Flag Figure Description Status 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
002188	Capability to detect obscuration Code/Flag Figure Description Status 1 Fog 2 Ice fog 3 Steam fog 7 Mist 8 Haze 9 Smoke 10 Volcanic ash 11 Dust 12 Sand 13 Snow
002189	Capability to discriminate lightning strikes Code/Flag Figure Description Status 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
002191	Geopotential height calculation Code/Flag Figure Description Status 0 Geopotential height calculated from pressure 1 Geopotential height calculated from GPS height 2 Geopotential height calculated from radar height 15 Missing value
004059	Times of observation used to compute the reported mean values Code/Flag Figure Description Status 1 0000 UTC 2 0600 UTC 3 1200 UTC 4 1800 UTC 5 Other hours
004080	Averaging period for following value Code/Flag Figure Description Status 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
008001	Vertical sounding significance Code/Flag Figure Description Status 1 Surface 2 Standard level 3 Tropopause level 4 Maximum wind level 5 Significant level, temperature and/or relative humidity 6 Significant level, wind
008002	Vertical significance (surface observations) Code/Flag Figure Description Status 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 Clouds not detected below the following height(s) 7 Low cloud 8 Middle cloud 9 High cloud 10 Cloud layer with base below and top above the station 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
008003	Vertical significance (satellite observations) Code/Flag Figure Description Status 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
008004	Phase of aircraft flight Code/Flag Figure Description Status 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
008005	Meteorological attribute significance Code/Flag Figure Description Status 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
008006	Ozone vertical sounding significance Code/Flag Figure Description Status 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
008007	Dimensional significance Code/Flag Figure Description Status 0 Point 1 Line 2 Area 3 Volume 15 Missing value
008008	Radiation vertical sounding significance Code/Flag Figure Description Status 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
008009	Detailed phase of flight Code/Flag Figure Description Status 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
008010	Surface qualifier (for temperature data) Code/Flag Figure Description Status 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
008011	Meteorological feature Code/Flag Figure Description Status 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 wave 24 Duststorm 25 Sandstorm 63 Missing value
008012	Land/sea qualifier Code/Flag Figure Description Status 0 Land 1 Sea 2 Coast 3 Missing value
008013	Day/night qualifier Code/Flag Figure Description Status 0 Night 1 Day 2 Twilight 3 Missing value
008014	Qualifier for runway visual range Code/Flag Figure Description Status 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 minimum value - normal value 4 one-minute minimum value - above the upper limit for assessments of RVR (P) 5 one-minute minimum 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
008016	Change qualifier of a trend-type forecast or an aerodrome forecast Code/Flag Figure Description Status 0 NOSIG 1 BECMG 2 TEMPO 3 FM 7 Missing value
008017	Qualifier of the time when the forecast change is expected Code/Flag Figure Description Status 0 FM 1 TL 2 AT 3 Missing value
008018	SEAWINDS land/ice surface type Code/Flag Figure Description Status 1 Land is present 2 Surface ice map indicates ice is present 11 Ice map data not available 12 Attenuation map data not available
008019	Qualifier for following centre identifier Code/Flag Figure Description Status 0 Reserved 1 ATS (Air Traffic Service) unit serving FIR (Flight Information Region) 2 FIR (Flight Information Region) 3 UIR (Upper Flight Information Region) 4 CTA (Control Area) 5 VAAC (Volcanic Ash Advisory Centre) 6 MWO (Meteorological Watch Office) issuing SIGMET 15 Missing value
008021	Time significance Code/Flag Figure Description Status 0 Reserved 1 Time series 2 Time averaged (see Note 1) 3 Accumulated 4 Forecast 5 Forecast time series 6 Forecast time averaged 7 Forecast accumulated 8 Ensemble mean (see Note 2) 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 or time of ending 30 Time of occurrence 31 Missing value
008023	First-order statistics Code/Flag Figure Description Status 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
008024	Difference statistics Code/Flag Figure Description Status 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
008025	Time difference qualifier Code/Flag Figure Description Status 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 value
008026	Matrix significance Code/Flag Figure Description Status 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
008029	Surface type Code/Flag Figure Description Status 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 15 Urban land 16 Rural land 17 Suburban land 255 Missing value
008033	Method of derivation of percentage confidence Code/Flag Figure Description Status 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
008035	Type of monitoring exercise Code/Flag Figure Description Status 0 Global 1 Regional 2 National 3 Special 4 Bilateral 5 Reserved 6 Reserved 7 Missing value
008036	Type of centre or station performing monitoring Code/Flag Figure Description Status 0 WMO Secretariat 1 WMO 2 RSMC 3 NMC 4 RTH 5 Observing site 6 Other 7 Missing value
008039	Time significance (Aviation forecast) Code/Flag Figure Description Status 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
008040	Flight level significance Code/Flag Figure Description Status 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 relative humidity 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 relative humidity data 12 End missing temperature data 13 Zero degrees Celsius 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 Relative humidity 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 relative humidity level (according to NCDC criteria) 42 Significant temperature level (according to 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
008041	Data significance Code/Flag Figure Description Status 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 31 Missing value
008042	Extended vertical sounding significance Code/Flag Figure Description Status 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
008043	Atmospheric chemical or physical constituent type Code/Flag Figure Description Status 0 10028-15-6 1 7732-18-5 2 74-82-8 3 124-38-9 4 630-08-0 5 10102-44-0 6 10024-97-2 7 50-00-0 8 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
008050	Qualifier for number of missing values in calculation of statistic Code/Flag Figure Description Status 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
008051	Qualifier for number of missing values in calculation of statistic Code/Flag Figure Description Status 1 Pressure 2 Temperature 3 Extreme temperature 4 Vapour pressure 5 Precipitation 6 Sunshine duration 7 Missing value
008052	Condition for which number of days of occurrence follows Code/Flag Figure Description Status 0 Mean wind speed over a 10-minute period observed or recorded equal to or more than 10 m s-1 or 20 knots 1 Mean wind speed over a 10-minute period observed or recorded equal to or more than 20 m s-1 or 40 knots 2 Mean wind speed over a 10-minute period observed or recorded equal to or more than 30 m s-1 or 60 knots 3 Maximum temperature less than 273.15 K 4 Maximum temperature equal to or more than 298.15 K 5 Maximum temperature equal to or more than 303.15 K 6 Maximum temperature equal to or more than 308.15 K 7 Maximum temperature equal to or more than 313.15 K 8 Minimum temperature less than 273.15 K 9 Maximum temperature equal to or more than 273.15 K 10 Precipitation equal to or more than 1.0 kg m-2 11 Precipitation equal to or more than 5.0 kg m-2 12 Precipitation equal to or more than 10.0 kg m-2 13 Precipitation equal to or more than 50.0 kg m-2 14 Precipitation equal to or more than 100.0 kg m-2 15 Precipitation equal to or more than 150.0 kg m-2 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
008053	Day of occurrence qualifier Code/Flag Figure Description Status 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
008054	Qualifier for wind speed or wind gusts Code/Flag Figure Description Status 0 Wind speed or gust is as reported 1 Wind speed is greater than that reported (P in METAR/TAF/SPECI) 7 Missing value
008060	Sample scanning mode significance Code/Flag Figure Description Status 0 Reserved 1 Range 2 Azimuth 3 Horizontal 4 Vertical 5 North/South 6 East/West 15 Missing value
008065	Sun-glint indicator Code/Flag Figure Description Status 0 No sun-glint 1 Sun-glint 2 Reserved 3 Missing value
008066	Semi-transparency indicator Code/Flag Figure Description Status 0 Opaque 1 Semi-transparent 2 Reserved 3 Missing value
008070	TOVS/ATOVS product qualifier Code/Flag Figure Description Status 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
008072	Pixel(s) type Code/Flag Figure Description Status 0 Mixed 1 Clear 2 Cloudy 3 Probably clear 4 Probably cloudy 7 Missing value
008074	Altimeter echo type Code/Flag Figure Description Status 0 Open ocean or semi-enclosed sea 1 Non-ocean like 2 Reserved 3 Missing value
008075	Ascending/descending orbit qualifier Code/Flag Figure Description Status 0 Ascending orbit 1 Descending orbit 2 Reserved 3 Missing value
008076	Type of band Code/Flag Figure Description Status 0 Ku 1 C 2 Long-wave infrared 3 Medium-wave infrared 4 Short-wave infrared 5 M 6 I 7 Day/night 63 Missing value
008077	Radiometer sensed surface type Code/Flag Figure Description Status 0 Land 1 Sea 2 Coastal 3 Open ocean or semi-enclosed sea 4 Enclosed sea or lake 5 Continental ice 127 Missing value
008079	Aviation product status Code/Flag Figure Description Status 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
008080	Qualifier for GTSPP quality flag Code/Flag Figure Description Status 0 Total water pressure profile 1 Total water temperature profile 2 Total water salinity profile 3 Total water conductivity profile 10 Water pressure at a level 11 Water temperature at a level 12 Salinity at a level 20 Position 63 Missing value
008081	Type of equipment Code/Flag Figure Description Status 0 Sensor 1 Transmitter 2 Receiver 3 Observing platform 63 Missing value
008082	Modification of sensor height to another value Code/Flag Figure Description Status 0 Sensor height is not modified 1 Sensor height is modified to standard level * 7 Missing value
008083	Nominal value indicator Code/Flag Figure Description Status 1 Adjusted to or with respect to representative height of sensor above local ground (or deck of marine platform) 2 Adjusted to or 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
008085	Beam identifier Code/Flag Figure Description Status 0 Fore beam 1 Mid beam 2 Aft beam 7 Missing value
008086	Vertical significance for NWP Code/Flag Figure Description Status 1 Model "ground" surface 2 Standard level 3 Tropopause level 4 Maximum wind level 5 Significant temperature level 6 Significant humidity level 7 Significant wind level 8 Vertically interpolated level (This should be set to 1 for points on the vertical profile that fall between the model's native vertical levels) 9 Virtual station height
010063	Characteristic of pressure tendency Code/Flag Figure Description Status 0 Increasing, then decreasing; atmospheric pressure the same or higher than three hours ago 1 Atmospheric pressure now higher than three hours ago 2 Atmospheric pressure now higher than three hours ago 3 Atmospheric pressure now higher than three hours ago 4 Steady; atmospheric pressure the same as three hours ago 5 Decreasing, then increasing; atmospheric pressure the same or lower than three hours ago 6 Atmospheric pressure now lower than three hours ago 7 Atmospheric pressure now lower than three hours ago 8 Atmospheric pressure now lower than three hours ago 15 Missing value
010064	SIGMET cruising level Code/Flag Figure Description Status 0 Subsonic 1 Transonic 2 Supersonic 7 Missing value
011030	Extended degree of turbulence Code/Flag Figure Description Status 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
011031	Degree of turbulence Code/Flag Figure Description Status 0 in cloud 1 in cloud 2 in cloud 3 in cloud 4 in clear air 5 in clear air 6 in clear air 7 in clear air 8 cloud/clear air not specified 9 cloud/clear air not specified 10 cloud/clear air not specified 11 cloud/clear air not specified 12 Extreme, in clear air 13 Extreme, in cloud 14 Extreme, cloud/clear air not specified 15 Missing value
011037	Turbulence index Code/Flag Figure Description Status 0 peak <0.1 1 0.1 <= peak < 0.2 2 0.1 <= peak < 0.2 3 0.2 <= peak < 0.3 4 0.2 <= peak < 0.3 5 0.2 <= peak < 0.3 6 0.3 <= peak < 0.4 7 0.3 <= peak < 0.4 8 0.3 <= peak < 0.4 9 0.3 <= peak < 0.4 10 0.4 <= peak < 0.5 11 0.4 <= peak < 0.5 12 0.4 <= peak < 0.5 13 0.4 <= peak < 0.5 14 0.4 <= peak < 0.5 15 0.5 <= peak < 0.8 16 0.5 <= peak < 0.8 17 0.5 <= peak < 0.8 18 0.5 <= peak < 0.8 19 0.5 <= peak < 0.8 20 0.5 <= peak < 0.8 21 0.8 <= peak 22 0.8 <= peak 23 0.8 <= peak 24 0.8 <= peak 25 0.8 <= peak 26 0.8 <= peak 27 0.8 <= peak 28 Nil 63 Missing value
011038	Time of occurrence of peak eddy dissipation rate Code/Flag Figure Description Status 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
011039	Extended time of occurrence of peak eddy dissipation rate Code/Flag Figure Description Status 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
013038	Superadiabatic indicator Code/Flag Figure Description Status 0 Not superadiabatic 1 Superadiabatic 2 Reserved 3 Missing value
013039	Terrain type (ice/snow) Code/Flag Figure Description Status 0 Sea ice 1 Snow on land 7 Missing value
013040	Surface flag Code/Flag Figure Description Status 0 Land 1 Reserved 2 Near coast 3 Ice 4 Possible ice 5 Ocean 6 Coast 15 Missing value
013041	Pasquill-Gifford stability category Code/Flag Figure Description Status 1 A 2 A - B 3 B 4 B - C 5 C 6 D 7 E 8 F 9 G 15 Missing value
013051	Frequency group, precipitation Code/Flag Figure Description Status 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
013056	Character and intensity of precipitation Code/Flag Figure Description Status 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
013057	Time of beginning or end of precipitation Code/Flag Figure Description Status 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
015025	Type of pollutant Code/Flag Figure Description Status 0 Ozone 11 Fine particulate matter (diameter < 2.5 microns) 12 Fine particulate matter (diameter < 10 microns) 15 Missing value
019001	Type of synoptic feature Code/Flag Figure Description Status 0 Depression or low (extratroplcal) 1 Tropical depression 2 Tropical storm 3 Severe tropical storm 4 Typhoon 10 Dust/sandstorm 63 Missing value
019008	Vertical extent of circulation Code/Flag Figure Description Status 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
019010	Method for tracking the centre of synoptic feature Code/Flag Figure Description Status 1 Minimum value of sea level pressure 2 Maximum value of 850 hPa relative vorticity 15 Missing value
019100	Time interval to calculate the movement of the tropical cyclone Code/Flag Figure Description Status 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
019101	Accuracy of the position of the centre of the tropical cyclone Code/Flag Figure Description Status 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
019102	Shape and definition of the eye of the tropical cyclone Code/Flag Figure Description Status 0 Circular 1 Elliptical - the minor axis is at least 3/4 the length of the major axis 2 Elliptical - the minor axis is less than 3/4 the length well defined of the major axis 3 Apparent double eye 4 Other shape 5 Ill defined 6 Undetermined 7 Missing value
019103	Diameter of major axis of the eye of the tropical cyclone Code/Flag Figure Description Status 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
019104	Change in character of the eye during the 30 minutes Code/Flag Figure Description Status 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
019105	Distance between the end of spiral band and the centre Code/Flag Figure Description Status 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
019107	Time interval over which the movement of the tropical cyclone has been calculated Code/Flag Figure Description Status 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
019108	Accuracy of geographical position of the tropical cyclone Code/Flag Figure Description Status 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
019109	Mean diameter of the overcast cloud of the tropical cyclone Code/Flag Figure Description Status 0 Less than 1&#176; of latitude 1 1&#176; to less than 2&#176; of latitude 2 2&#176; to less than 3&#176; of latitude 3 3&#176; to less than 4&#176; of latitude 4 4&#176; to less than 5&#176; of latitude 5 5&#176; to less than 6&#176; of latitude 6 6&#176; to less than 7&#176; of latitude 7 7&#176; to less than 8&#176; of latitude 8 8&#176; to less than 9&#176; of latitude 9 9&#176; of latitude or more 10 Undetermined 15 Missing value
019110	Apparent 24-hour change in intensity of the tropical cyclone Code/Flag Figure Description Status 0 Much weakening 1 Weakening 2 No change 3 Intensification 4 Strong Intensification 9 Not observed previously 10 Undetermined 15 Missing value
019113	Cloud pattern type of the DT-number Code/Flag Figure Description Status 1 Curved Band 2 Shear 3 Eye 4 Banding Eye 5 Central Dense Overcast (CDO) 6 Embedded Centre 7 Centre Cold Cover (CCC) 15 Missing value
019117	Cloud picture type of the PT-number Code/Flag Figure Description Status 1 A (Curved Band) 2 B (CDO) 3 C (Shear) 7 Missing value
019119	Type of the final T-number Code/Flag Figure Description Status 1 DT-number 2 PT-number 3 MET-number 7 Missing value
020003	Present weather Code/Flag Figure Description Status 00 Characteristic change of the state of sky during the past hour 01 Characteristic change of the state of sky during the past hour 02 Characteristic change of the state of sky during the past hour 03 Characteristic change of the state of sky during the past hour 04 Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes 05 Haze 06 Widespread dust in suspension in the air, not raised by wind at or near the station at the time of observation 07 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 08 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 09 Duststorm or sandstorm within sight at the time of observation, or at the station during the preceding hour 10 Mist 11 shallow fog or ice fog at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea 12 shallow fog or ice fog 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 at or within sight of the station during the preceding hour or at the time of observation 19 at or within sight of the station during the preceding hour or at the time of observation 20 not falling as shower(s) 21 not falling as shower(s) 22 not falling as shower(s) 23 not falling as shower(s) 24 not falling as shower(s) 25 not falling as shower(s) 26 Shower(s) of snow, or of rain and snow 27 Shower(s) of hail*, or of rain and hail 28 Fog or ice fog 29 Thunderstorm (with or without precipitation) 30 has decreased during the preceding hour 31 no appreciable change during the preceding hour 32 has begun or has increased during the preceding hour 33 has decreased during the preceding hour 34 no appreciable change during the preceding hour 35 has begun or has increased during the preceding hour 36 generally low (below eye level) 37 generally low (below eye level) 38 generally high (above eye level) 39 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 has become thinner during the preceding hour 43 has become thinner during the preceding hour 44 no appreciable change during the preceding hour 45 no appreciable change during the preceding hour 46 has begun or has become thicker during the preceding hour 47 has begun or has become thicker during the preceding hour 48 Fog, depositing rime, sky visible 49 Fog, depositing rime, sky invisible 50 slight at time of observation 51 slight at time of observation 52 moderate at time of observation 53 moderate at time of observation 54 heavy (dense) at time of observation 55 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 slight at time of observation 61 slight at time of observation 62 moderate at time of observation 63 moderate at time of observation 64 heavy at time of observation 65 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 slight at time of observation 71 slight at time of observation 72 moderate at time of observation 73 moderate at time of observation 74 heavy at time of observation 75 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 slight 88 moderate or heavy 89 slight 90 moderate or heavy 91 Thunderstorm during the preceding hour but not at time of observation 92 Thunderstorm during the preceding hour but not at time of observation 93 Thunderstorm during the preceding hour but not at time of observation 94 Thunderstorm during the preceding hour but not at time of observation 95 Thunderstorm at time of observation 96 Thunderstorm at time of observation 97 Thunderstorm at time of observation 98 Thunderstorm at time of observation 99 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 119 Reserved 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 the past hour 133 Fog or ice fog, no appreciable change during the past hour 134 Fog or ice fog, has begun or become thicker during the 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 149 Reserved 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 159 Reserved 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 169 Reserved 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 179 Reserved 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 188 Reserved 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 205 Not used 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 haboob) 210 Snow haze 211 Whiteout 212 Not used 213 Lightning, cloud to surface 217 Dry thunderstorm 218 Not used 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) 229 Not used 230 Duststorm or sandstorm with temperature below 0 &#176;C 239 Blowing snow, impossible to determine whether snow is falling or not 240 Not used 241 Fog on sea 242 Fog in valleys 243 Arctic or Antarctic sea smoke 244 Steam fog (sea, lake or river) 245 Steam log (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-1 251 Drizzle, rate of fall - 0.10-0.19 mm h-1 252 Drizzle, rate of fall - 0.20-0.39 mm h-1 253 Drizzle, rate of fall - 0.40-0.79 mm h-1 254 Drizzle, rate of fall - 0.80-1.59 mm h-1 255 Drizzle, rate of fall - 1.60-3.19 mm h-1 256 Drizzle, rate of fall - 3.20-6.39 mm h-1 257 Drizzle, rate of fall - 6.4 mm h-1 or more 258 Not used 259 Drizzle and snow 260 Rain, rate of fall - less than 1.0 mm h-1 261 Rain, rate of fall - 1.0-1.9 mm h-1 262 Rain, rate of fall - 2.0-3.9 mm h-1 263 Rain, rate of fall - 4.0-7.9 mm h-1 264 Rain, rate of fall - 8.0-15.9 mm h-1 265 Rain, rate of fall - 16.0-31.9 mm h-1 266 Rain, rate of fall - 32.0-63.9 mm h-1 267 Rain, rate of fall - 64.0 mm h-1 or more 270 Snow, rate of fall - less than 1.0 cm h-1 271 Snow, rate of fall - 1.0-1.9 cm h-1 272 Snow, rate of fall - 2.0-3.9 cm h-1 273 Snow, rate of fall - 4.0-7.9 cm h-1 274 Snow, rate of fall - 8.0-15.9 cm h-1 275 Snow, rate of fall - 16.0-31.9 cm h-1 276 Snow, rate of fall - 32.0-63.9 cm h-1 277 Snow, rate of fall - 64.0 cm h-1 or more 278 Snow or ice crystal 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 hall 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 hall, 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 No observation, data not available, present and past weather omitted 510 Present and past weather missing, but expected 511 Missing value
020004	Past weather (1) Code/Flag Figure Description Status 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 fog 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 (see Note) 12 Blowing phenomena, visibility reduced 13 FOG (see Note) 14 PRECIPITATION (see Note) 15 Drizzle 16 Rain 17 Snow or ice pellets 18 Showers or intermittent precipitation 19 Thunderstorm 31 Missing value
020005	Past weather (2) Code/Flag Figure Description Status 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 fog 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 (see Note) 12 Blowing phenomena, visibility reduced 13 FOG (see Note) 14 PRECIPITATION (see Note) 15 Drizzle 16 Rain 17 Snow or ice pellets 18 Showers or intermittent precipitation 19 Thunderstorm 31 Missing value
020006	Flight rules Code/Flag Figure Description Status 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
020008	Cloud distribution for aviation Code/Flag Figure Description Status 0 Sky clear 1 Few 2 Scattered 3 Broken 4 Overcast 5 Reserved 6 (Many forecasts use scattered/broken or broken/overcast followed by cloud type(s)) 7 (Many forecasts use scattered/broken or broken/overcast followed by cloud type(s)) 8 (Used on aviation charts to describe the cloud type Cb) 9 (Used on aviation charts to describe the cloud type Cb) 10 (Used on aviation charts to describe the cloud type Cb) 11 (Used on aviation charts to describe the cloud type Cb) 12 (Used on aviation charts to describe the cloud type Cb) 13 (Used on aviation charts to describe cloud that would cause sudden changes in visibility (less than 1 000 m)) 14 Layers 15 Obscured (OBSC) 16 Embedded (EMBD) 17 Frequent embedded 31 Missing value
020009	General weather indicator (TAF/METAR) Code/Flag Figure Description Status 0 Reserved 1 NSC Nil Significant Cloud 2 CAVOK 3 SKC Sky Clear 4 NSW Nil Significant Weather 15 Missing value
020011	Cloud amount Code/Flag Figure Description Status 0 0 1 1/10 or less, but not zero 2 2/10 - 3/10 3 4/10 4 5/10 5 6/10 6 7/10 - 8/10 7 9/10 or more, but not 10/10 8 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
020012	Cloud type Code/Flag Figure Description Status 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 occurring 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 a 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 continuous layer of lower clouds 62 CL clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena 63 Missing value
020017	Cloud top description Code/Flag Figure Description Status 0 Isolated cloud fragments of clouds 1 flat tops 2 flat tops 3 flat tops 4 undulating tops 5 undulating tops 6 undulating 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
020018	Tendency of runway visual range Code/Flag Figure Description Status 0 Increasing (U) 1 Decreasing (D) 2 No distinct change (N) 3 Missing value
020021	Type of precipitation Code/Flag Figure Description Status 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
020022	Character of precipitation Code/Flag Figure Description Status 0 No precipitation 1 Continuous 2 Intermittent 3 Shower 4 Not reaching ground 5 Deposition 15 Missing value
020023	Other weather phenomena Code/Flag Figure Description Status 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 Waterspout 13 Wind shear 14 Dust devils
020024	Intensity of phenomena Code/Flag Figure Description Status 0 No phenomena 1 Light 2 Moderate 3 Heavy 4 Violent 5 Severe 6 Very severe 7 Missing value
020025	Obscuration Code/Flag Figure Description Status 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 16 Impossible to determine whether snow is falling or not
020026	Character of obscuration Code/Flag Figure Description Status 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 Drifting and blowing 14 Reserved 15 Missing value
020027	Phenomena occurrence Code/Flag Figure Description Status 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
020028	Expected change in intensity Code/Flag Figure Description Status 0 No change (NC) 1 Forecast to weaken (WKN) 2 Forecast to intensify (INTSF) 7 Missing value
020029	Rain flag Code/Flag Figure Description Status 0 No rain 1 Rain 2 Reserved 3 Missing value
020032	Rate of ice accretion (estimated) Code/Flag Figure Description Status 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 7 Missing value
020033	Cause of ice accretion Code/Flag Figure Description Status 1 Icing from ocean spray 2 Icing from fog 3 Icing from rain
020034	Sea ice concentration Code/Flag Figure Description Status 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 Ship in ice or within 0.5 nautical mile of ice edge 3 Ship in ice or within 0.5 nautical mile of ice edge 4 Ship in ice or within 0.5 nautical mile of ice edge 5 Ship in ice or within 0.5 nautical mile of ice edge 6 Ship in ice or within 0.5 nautical mile of ice edge 7 Ship in ice or within 0.5 nautical mile of ice edge 8 Ship in ice or within 0.5 nautical mile of ice edge 9 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
020035	Amount and type of ice Code/Flag Figure Description Status 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
020036	Ice situation Code/Flag Figure Description Status 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
020037	Ice development Code/Flag Figure Description Status 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
020040	Evolution of drift snow Code/Flag Figure Description Status 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
020041	Airframe icing Code/Flag Figure Description Status 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 15 Missing value
020042	Airframe icing present Code/Flag Figure Description Status 0 No icing 1 Icing present 2 Reserved 3 Missing value
020045	Supercooled large droplet (SLD) conditions Code/Flag Figure Description Status 0 No SLD conditions present 1 SLD conditions present 2 Reserved 3 Missing value
020048	Evolution of feature Code/Flag Figure Description Status 0 Stability 1 Diminution 2 Intensification 3 Unknown 15 Missing value
020050	Cloud index Code/Flag Figure Description Status 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
020055	State of sky in the tropics Code/Flag Figure Description Status 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 one and a half 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 one and a half 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
020056	Cloud phase Code/Flag Figure Description Status 0 Unknown 1 Water 2 Ice 3 Mixed 4 Clear 7 Missing value
020062	State of the ground (with or without snow) Code/Flag Figure Description Status 0 without snow or measurable ice cover 1 without snow or measurable ice cover 2 without snow or measurable ice cover 3 without snow or measurable ice cover 4 without snow or measurable ice cover 5 without snow or measurable ice cover 6 without snow or measurable ice cover 7 without snow or measurable ice cover 8 without snow or measurable ice cover 9 without snow or measurable ice cover 10 without snow or measurable ice cover 11 with snow or measurable ice cover 12 with snow or measurable ice cover 13 with snow or measurable ice cover 14 with snow or measurable ice cover 15 with snow or measurable ice cover 16 with snow or measurable ice cover 17 with snow or measurable ice cover 18 with snow or measurable ice cover 19 with snow or measurable ice cover 31 Missing value
020063	Special phenomena Code/Flag Figure Description Status 0 Reserved 1 Highest wind speed gusts greater than 11.5 m/s 2 Highest mean wind speed greater than 17.5 m/s 7 Visibility greater than 100 000 m 10 10-19 Mirage 11 10-19 Mirage 13 10-19 Mirage 14 10-19 Mirage 15 10-19 Mirage 16 10-19 Mirage 17 10-19 Mirage 18 10-19 Mirage 19 Reserved 20 20-22 Day darkness, worst in direction specified 21 20-22 Day darkness, worst in direction specified 22 20-22 Day darkness, worst in direction specified 31 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 32 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 33 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 34 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 35 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 36 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 37 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 38 31-39 Coloration and/or convergence of clouds associated with a tropical disturbance 39 Reserved 40 40-43 Hoar frost or coloured precipitation 41 40-43 Hoar frost or coloured precipitation 42 40-43 Hoar frost or coloured precipitation 43 40-43 Hoar frost or coloured precipitation 50 50-59 Nature and/or type of squall 51 50-59 Nature and/or type of squall 52 50-59 Nature and/or type of squall 53 50-59 Nature and/or type of squall 54 50-59 Nature and/or type of squall 55 50-59 Nature and/or type of squall 56 50-59 Nature and/or type of squall 57 50-59 Nature and/or type of squall 58 50-59 Nature and/or type of squall 59 50-59 Nature and/or type of squall 60 60-69 Variation of temperature during the period specified, associated with glaze or rime 61 60-69 Variation of temperature during the period specified, associated with glaze or rime 62 60-69 Variation of temperature during the period specified, associated with glaze or rime 63 60-69 Variation of temperature during the period specified, associated with glaze or rime 64 60-69 Variation of temperature during the period specified, associated with glaze or rime 65 60-69 Variation of temperature during the period specified, associated with glaze or rime 66 60-69 Variation of temperature during the period specified, associated with glaze or rime 67 60-69 Variation of temperature during the period specified, associated with glaze or rime 68 60-69 Variation of temperature during the period specified, associated with glaze or rime 69 60-69 Variation of temperature during the period specified, associated with glaze or rime 70 70-79 Variation of visibility during the period specified 71 70-79 Variation of visibility during the period specified 72 70-79 Variation of visibility during the period specified 73 70-79 Variation of visibility during the period specified 74 70-79 Variation of visibility during the period specified 75 70-79 Variation of visibility during the period specified 76 70-79 Variation of visibility during the period specified 77 70-79 Variation of visibility during the period specified 78 70-79 Variation of visibility during the period specified 79 70-79 Variation of visibility during the period specified 80 80-89 Optical phenomena 81 80-89 Optical phenomena 82 80-89 Optical phenomena 83 80-89 Optical phenomena 84 80-89 Optical phenomena 85 80-89 Optical phenomena 86 80-89 Optical phenomena 87 80-89 Optical phenomena 88 80-89 Optical phenomena 89 80-89 Optical phenomena 90 St Elmo's fire 1023 Missing value
020071	Accuracy of fix and rate of atmospherics Code/Flag Figure Description Status 0 No assessment 1 Less than 1 per second 2 Less than 1 per second 3 Less than 1 per second 4 1 or more per second 5 1 or more per second 6 1 or more per second 7 Rate so rapid number cannot be counted 8 Rate so rapid number cannot be counted 9 Rate so rapid number cannot be counted 15 Missing value
020085	General condition of runway Code/Flag Figure Description Status 0 Cleared (CLRD//) 1 All runways closed (SNOCLO) 15 Missing value
020086	Runway deposits Code/Flag Figure Description Status 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)
020087	Runway contamination Code/Flag Figure Description Status 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)
020089	Runway friction coefficient Code/Flag Figure Description Status 0 0.00 1 0.01 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
020090	Special clouds Code/Flag Figure Description Status 0 Reserved 1 Nacreous clouds 2 Noctilucent clouds 3 Clouds from waterfalls 4 Clouds from fires 5 Clouds from volcanic eruptions 15 Missing value
020101	Locust (acridian) name Code/Flag Figure Description Status 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 exempta 15 Missing value
020102	Locust (maturity) colour Code/Flag Figure Description Status 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
020103	Stage of development of locusts Code/Flag Figure Description Status 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
020104	Organization state of swarm or band of locusts Code/Flag Figure Description Status 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 than 10 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
020105	Size of swarm or band of locusts and duration of passage of swarm Code/Flag Figure Description Status 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 1 000 - 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 15 Missing value 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 15 Missing value
020106	Locust population density Code/Flag Figure Description Status 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
020107	Direction of movements of locust swarm Code/Flag Figure Description Status 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
020108	Extent of vegetation Code/Flag Figure Description Status 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
020119	Lightning discharge polarity Code/Flag Figure Description Status 0 Not defined 1 Positive 2 Negative 3 Missing value
020124	Lightning stroke or flash Code/Flag Figure Description Status 0 Not defined 1 Lightning stroke 2 Lightning flash, by manual observation, or if equipment insensitive to stroke resolution 3 Missing value
020136	Supplementary cloud type Code/Flag Figure Description Status 0 Isolated cumulus humilis and/or cumulus mediocris of vertical development 1 Numerous cumulus humilis and/or cumulus mediocris of vertical development 2 Isolated cumulus congestus of vertical development 3 Numerous cumulus congestus of vertical development 4 Isolated cumulonimbus of vertical development 5 Numerous cumulonimbus of vertical development 6 Isolated cumulus and cumulonimbus of vertical development 7 Numerous cumulus and cumulonimbus of vertical development 10 Reserved 11 Isolated orographic clouds, pileus, incus, forming 12 Isolated orographic clouds, pileus, incus, not changing 13 Isolated orographic clouds, pileus, incus, dissolving 14 Irregular banks of orographic cloud, f&#246;hn bank, etc., forming 15 Irregular banks of orographic cloud, f&#246;hn bank, etc., not changing 16 Irregular banks of orographic cloud, f&#246;hn bank, etc., dissolving 17 Compact layer of orographic cloud, f&#246;hn bank, etc., forming 18 Compact layer of orographic cloud, f&#246;hn bank, etc., not changing 19 Compact layer of orographic cloud, f&#246;hn bank, etc., dissolving 20 All mountains open, only small amounts of cloud present 21 Mountains partly covered with detached clouds (not more than half the peaks can be seen) 22 All mountain slopes covered, peaks and passes free 23 Mountains open on observer&#8217;s side (only small amounts of cloud present), but a continuous wall of cloud on the other side 24 Clouds low above the mountains, but all slopes and mountains open (only small amounts of cloud on the slopes) 25 Clouds low above the mountains, peaks partly covered by precipitation trails or clouds 26 All peaks covered but passes open, slopes either open or covered 27 Mountains generally covered but some peaks free, slopes wholly or partially covered 28 All peaks, passes and slopes covered 29 Mountains cannot be seen owing to darkness, fog, snowstorm, precipitation, etc. 35 Non-persistent condensation trails 36 Persistent condensation trails covering less than 1/8 of the sky 37 Persistent condensation trails covering 1/8 of the sky 38 Persistent condensation trails covering 2/8 of the sky 39 Persistent condensation trails covering 3/8 or more of the sky 40 No cloud or mist observed from a higher level 41 Mist, clear above observed from a higher level 42 Fog patches observed from a higher level 43 Layer of slight fog observed from a higher level 44 Layer of thick fog observed from a higher level 45 Some isolated clouds observed from a higher level 46 Isolated clouds and fog below observed from a higher level 47 Many isolated clouds observed from a higher level 48 Sea of clouds observed from a higher level 49 Bad visibility obscuring the downward view observed from a higher level 511 Missing value
021066	Wave scatterometer product confidence data Code/Flag Figure Description Status 1 Processing equipment not working 2 Equipment failed 3 PRF code changed during image generation 4 Sampling window changed 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
021067	Wind product confidence data Code/Flag Figure Description Status 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
021068	Radar altimeter product confidence data Code/Flag Figure Description Status 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)
021069	SST product confidence data Code/Flag Figure Description Status 1 12.0 &#181;m channel present in source data 2 11.0 &#181;m channel present in source data 3 3.7 &#181;m channel present in source data 4 1.6 &#181;m channel present in source data 5 Cloud identification used 1.6 &#181;m histogram reflectance cloud test 6 1.6 &#181;m histogram reflectance cloud test used dynamic threshold 7 Sun glint detected by 1.6 &#181;m reflectance cloud test 8 3.7 &#181;m channel used in sea-surface temperature retrieval 9 Sea-surface temperature derivation used daytime data (night-time if zero)
021070	SST product confidence data (SADIST-2) Code/Flag Figure Description Status 1 Cell 1: nadir-only view SST used 3.7 micron channel 2 Cell 2: nadir-only view SST used 3.7 micron channel 3 Cell 3: nadir-only view SST used 3.7 micron channel 4 Cell 4: nadir-only view SST used 3.7 micron channel 5 Cell 5: nadir-only view SST used 3.7 micron channel 6 Cell 6: nadir-only view SST used 3.7 micron channel 7 Cell 7: nadir-only view SST used 3.7 micron channel 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 12 Cell 3: dual view SST used 3.7 micron channel 13 Cell 4: dual view SST used 3.7 micron channel 14 Cell 5: dual view SST used 3.7 micron channel 15 Cell 6: dual view SST used 3.7 micron channel 16 Cell 7: dual view SST used 3.7 micron channel 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
021072	Satellite altimeter calibration status Code/Flag Figure Description Status 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
021073	Satellite altimeter instrument mode Code/Flag Figure Description Status 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
021076	Representation of intensities Code/Flag Figure Description Status 0 Linear 1 Logarithmic (base e) 2 Logarithmic (base 10) 7 Missing value
021109	SEAWINDS wind vector cell quality Code/Flag Figure Description Status 1 Not enough good sigma-0 available for wind retrieval 2 Poor azimuth diversity among sigma-0 for wind retrieval 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-1 12 Reported wind speed is less than or equal to 3 m s-1
021115	SEAWINDS sigma-0 quality Code/Flag Figure Description Status 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
021116	SEAWINDS sigma-0 mode Code/Flag Figure Description Status 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)
021119	Wind scatterometer geophysical model function Code/Flag Figure Description Status 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
021144	Altimeter rain flag Code/Flag Figure Description Status 1 Rain
021150	Beam co-location Code/Flag Figure Description Status 0 Data from single ground station (no co-location) 1 Data from multiple ground station (co-located data) 2 Reserved 3 Missing value
021155	Wind vector cell quality Code/Flag Figure Description Status 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
021158	ASCAT KP quality estimate Code/Flag Figure Description Status 0 Acceptable 1 Not acceptable 2 Reserved 3 Missing value
021159	ASCAT sigma-0 usability Code/Flag Figure Description Status 0 Good 1 Usable 2 Bad 3 Missing value
021169	Ice presence indicator Code/Flag Figure Description Status 0 No ice present 1 Ice present 2 Reserved 3 Missing value
022056	Direction of profile Code/Flag Figure Description Status 0 Upwards profile 1 Downwards profile 2 Horizontal 3 Missing value
022060	Lagrangian drifter drogue status Code/Flag Figure Description Status 0 Drogue is detached 1 Drogue is attached 2 Drogue status unknown 7 Missing value
022061	State of the sea Code/Flag Figure Description Status 0 0 1 0 - 0.1 2 0.1 - 0.5 3 0.5 - 1.25 4 1.25 - 2.5 5 2.5 - 4 6 4 - 6 7 6 - 9 8 9 - 14 9 Over 14 15 Missing value
022120	Tide station automated water level check Code/Flag Figure Description Status 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
022121	Tide station manual water level check Code/Flag Figure Description Status 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
022122	Tide station automated meteorological data check Code/Flag Figure Description Status 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
022123	Tide station manual meteorological data check Code/Flag Figure Description Status 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
023001	Accident early notification - article applicable Code/Flag Figure Description Status 0 Reserved 1 Articles 1 and 2 2 Article 3 3 Article 5.2 7 Missing value
023002	Activity or facility involved in incident Code/Flag Figure Description Status 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 value
023003	Type of release Code/Flag Figure Description Status 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
023004	Countermeasures taken near border Code/Flag Figure Description Status 0 No countermeasures 1 Evacuation 2 Sheltering 3 Prophylaxis 4 Water 7 Missing value
023005	Cause of incident Code/Flag Figure Description Status 0 Incident State does not understand what happened 1 Incident State knows the cause of the incident 2 Reserved 3 Missing value
023006	Incident situation Code/Flag Figure Description Status 0 No improvement 1 Unstable 2 No deterioration 3 Improving 4 Stable 5 Deteriorating 6 Reserved 7 Missing value
023007	Characteristics of release Code/Flag Figure Description Status 0 No release 1 Release has stopped 2 Release 3 Release is continuing 7 Missing value
023008	State of current release Code/Flag Figure Description Status 0 Gaseous 1 Particulate 2 Mixture of gaseous and particulate 3 Missing value
023009	State of expected release Code/Flag Figure Description Status 0 Gaseous 1 Particulate 2 Mixture of gaseous and particulate 3 Missing value
023016	Possibility of significant chemical toxic health effect Code/Flag Figure Description Status 0 No significant chemical toxic health effect 1 Significant chemical toxic health effect possible 2 Reserved 3 Missing value
023018	Release behaviour over time Code/Flag Figure Description Status 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
023031	Possibility that plume will encounter precipitation in State in which incident occurred Code/Flag Figure Description Status 0 Plume will not encounter rain in incident State 1 Plume will encounter rain in incident State 2 Reserved 3 Missing value
023032	Plume will encounter change in wind direction and/or speed flag Code/Flag Figure Description Status 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
024003	Composition of release Code/Flag Figure Description Status 0 Noble gases 1 Iodines 2 Caesiums 3 Transuranics 31 Missing value
025004	Echo processing Code/Flag Figure Description Status 0 Incoherent 1 Coherent (Doppler) 2 Reserved 3 Missing value
025005	Echo integration Code/Flag Figure Description Status 0 Logarithm - 2.5 dB 1 Linear 2 Special 3 Missing value
025006	Z to R conversion Code/Flag Figure Description Status 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
025009	Calibration method Code/Flag Figure Description Status 1 None 2 Calibration target or signal 3 Against raingauges 4 Against other Instruments (distrometer - attenuation)
025010	Clutter treatment Code/Flag Figure Description Status 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 linear signal (clutter suppression) 5 Clutter suppression - Doppler 6 Multiparameter analysis 15 Missing value
025011	Ground occultation correction (screening) Code/Flag Figure Description Status 0 None 1 Map of correction factors 2 Interpolation (azimuth or elevation) 3 Missing value
025012	Range attenuation correction Code/Flag Figure Description Status 0 Hardware 1 Software 2 Hardware and software 3 Missing value
025013	Bright-band correction Code/Flag Figure Description Status 1 Bright-band correction
025015	Radome attenuation correction Code/Flag Figure Description Status 1 Radome attenuation correction
025017	Precipitation attenuation correction Code/Flag Figure Description Status 1 Precipitation attenuation correction
025020	Mean speed estimation Code/Flag Figure Description Status 0 FFT (fast Fourier transform) 1 PPP (pulse-pair processing) 2 VPC (vector-phase change) 3 Missing value
025021	Wind computation enhancement Code/Flag Figure Description Status 1 Simple average 2 Consensus average 3 Median check 4 Vertical consistency check 5 Other
025022	GHRSST rejection flag Code/Flag Figure Description Status 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
025023	GHRSST confidence flag Code/Flag Figure Description Status 1 Default confidence value has been used 2 Default bias and standard deviation have 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
025024	GHRSST data quality Code/Flag Figure Description Status 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
025029	Calibration method Code/Flag Figure Description Status 1 Reserved 2 Calibration target or signal 3 Against raingauges 4 Against other instruments (disdrometer - attenuation) 5 Reserved
025030	Running mean sea-surface temperature usage Code/Flag Figure Description Status 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
025031	NWP-generated vertical profile thinning method Code/Flag Figure Description Status 0 Reserved 1 No thinning applied (all native model levels are included from base to top of pseudo-sounding) 2 Native model levels are present only if they are significant levels as per regulations B/C 25 for conventional TEMP soundings 3 A predefined subset of native model levels is present 4 No native model levels are present. All profile levels are interpolated to a predefined set of pressure coordinate levels 7 Missing value
025032	Wind profiler mode information Code/Flag Figure Description Status 0 Reserved 1 Data from low mode 2 Data from high mode 3 Missing value
025033	Wind profiler submode information Code/Flag Figure Description Status 0 Wind profiler operating in submode A 1 Wind profiler operating in submode B 2 Reserved 3 Missing value
025034	Wind profiler quality control test results Code/Flag Figure Description Status 1 Test A performed and failed 2 Test B performed and failed 3 Test results inconclusive
025035	Decision method for polarity Code/Flag Figure Description Status 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
025036	Atmospherics location method Code/Flag Figure Description Status 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
025040	CO2 wind product derivation Code/Flag Figure Description Status 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
025041	Moving platform direction reporting method Code/Flag Figure Description Status 0 Direction originally reported in true degrees 1 Direction originally reported using Code table 0700, FM 13 2 Reserved 3 Missing value
025042	Moving platform speed reporting method Code/Flag Figure Description Status 0 Speed originally reported in metres per second 1 Speed originally reported using Code table 4451, FM 13 2 Reserved 3 Missing value
025053	Observation quality Code/Flag Figure Description Status 1 Good 2 Redundant 3 Questionable 4 Bad 5 Experimental 6 Precipitating
025063	Central processor or system identifier Code/Flag Figure Description Status 0 Not defined 1 Main processor 2 Backup processor 255 Missing value
025069	Flight level pressure corrections Code/Flag Figure Description Status 1 Smoothed 2 Baseline adjusted 3 Normalized time interval 4 Outlier checked 5 Plausibility checked 6 Consistency checked 7 Interpolated
025086	Depth correction indicator Code/Flag Figure Description Status 0 Depths are not corrected 1 Depths are corrected 2 Reserved 3 Missing value
025090	Orbit state flag Code/Flag Figure Description Status 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&#8224; DIODE&#8225; navigator orbit 15 Missing value
025093	RASS computation correction Code/Flag Figure Description Status 1 No correction 2 Vertical velocity correction 7 All corrections
025095	Altimeter state flag Code/Flag Figure Description Status 1 Altimeter operating (0 if nominal, 1 if backup)
025096	Radiometer state flag Code/Flag Figure Description Status 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) 'Bits 3 and 4 indicate active 23.8 GHz channel(s): 3 Channel 2 (0 if on, 1 if off) 4 Channel 3 (0 if on, 1 if off)
025097	Three-dimensional error estimate of the navigator orbit Code/Flag Figure Description Status 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
025098	Altimeter data quality flag Code/Flag Figure Description Status 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
025099	Altimeter correction quality flag Code/Flag Figure Description Status 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
025110	Image processing summary Code/Flag Figure Description Status 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
025120	RA2-L2-processing flag Code/Flag Figure Description Status 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
025122	Hardware configuration for RF Code/Flag Figure Description Status 0 Hardware configuration for RF is A 1 Hardware configuration for RF is B 2 Reserved 3 Missing value
025123	Hardware configuration for HPA Code/Flag Figure Description Status 0 Hardware configuration for HPA is A 1 Hardware configuration for HPA is B 2 Reserved 3 Missing value
025124	MWR-L2-processing flag Code/Flag Figure Description Status 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
025150	Method of tropical cyclone intensity analysis using satellite data Code/Flag Figure Description Status 1 The Dvorak's VIS (VISual imagery) intensity analysis 2 The Dvorak's EIR (Enhanced InfraRed imagery) intensity analysis 15 Missing value
025174	SMOS information flag Code/Flag Figure Description Status 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 polarization during image reconstruction to account for cross-polarization 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
026010	Hours included Code/Flag Figure Description Status 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
029001	Projection type Code/Flag Figure Description Status 0 Gnomonic projection 1 Polar stereographic projection 2 Lambert's conformal conic projection 3 Mercator's projection 4 Scanning Cone (radar)* 5 Reserved 6 No projection 7 Missing value
029002	Coordinate grid type Code/Flag Figure Description Status 0 Cartesian 1 Polar 2 Other 7 Missing value
030031	Picture type Code/Flag Figure Description Status 0 PPI 1 Composite 2 CAPPl 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
030032	Combination with other data Code/Flag Figure Description Status 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
031021	Associated field significance Code/Flag Figure Description Status 0 Reserved 1 0 = good, 1 = suspect or bad 2 0 = good, 1 = slightly suspect, 2 = highly suspect, 3 = bad 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 7 Percentage confidence 8 0 = Not suspected, 1 = Suspected, 2 = Reserved, 3 = Information not required 21 0 = original value, 1 = substituted/corrected value 63 Missing value
031031	Data present indicator Code/Flag Figure Description Status 1 0 Data present
033002	Quality information Code/Flag Figure Description Status 0 Data not suspect 1 Data suspect 2 Reserved 3 Quality information not given
033003	Quality information Code/Flag Figure Description Status 0 Data not suspect 1 Data slightly suspect 2 Data highly suspect 3 Data considered unfit for use 7 Quality information not given
033005	Quality information (AWS data) Code/Flag Figure Description Status 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
033006	Internal measurement status information (AWS) Code/Flag Figure Description Status 0 Self-check OK 1 At least one warning active, no alarms 2 At least one alarm active 3 Sensor failure 7 Missing value
033015	Data quality check indicator Code/Flag Figure Description Status 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
033020	Quality control indication of following value Code/Flag Figure Description Status 0 Good 1 Inconsistent 2 Doubtful 3 Wrong 4 Not checked 5 Has been changed 6 Estimated 7 Missing value
033021	Quality of following value Code/Flag Figure Description Status 0 Within limits 1 Outside limits 2 Reserved 3 Missing value
033022	Quality of buoy satellite transmission Code/Flag Figure Description Status 0 Good (several identical reports have been received) 1 Dubious (no identical reports have been received) 2 Reserved 3 Missing value
033023	Quality of buoy location Code/Flag Figure Description Status 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
033024	Station elevation quality mark (for mobile stations) Code/Flag Figure Description Status 0 Reserved 1 Excellent - within 3 metres 2 Good - within 10 metres 3 Fair - within 20 metres 4 Poor - more than 20 metres 5 Excellent - within 10 feet 6 Good - within 30 feet 7 Fair - within 60 feet 8 Poor - more than 60 feet 15 Missing value
033025	ACARS interpolated values indicator Code/Flag Figure Description Status 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
033026	Moisture quality Code/Flag Figure Description Status 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 10 Calculated RH > 100 % 11 Input laser power too low 12 Probe WV temp. out of range 13 Probe WV press. out of range 14 Spectral line out of range 15 No laser output 63 Missing value
033027	Location quality class (range of radius of 66 % confidence) Code/Flag Figure Description Status 0 Radius > 1500 m 1 500 m < Radius <1500 m 2 250 m < Radius < 500 m 3 Radius < 250 m 7 Missing value
033028	Snapshot overall quality Code/Flag Figure Description Status 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
033030	Scan line status flags for ATOVS Code/Flag Figure Description Status 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
033031	Scan line quality flags for ATOVS Code/Flag Figure Description Status 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
033032	Channel quality flags for ATOVS Code/Flag Figure Description Status 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
033033	Field of view quality flags for ATOVS Code/Flag Figure Description Status 1 Set if secondary calibration used 22 Set if all the channels are missing 23 Suspect
033035	Manual/automatic quality control Code/Flag Figure Description Status 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
033037	Wind correlation error Code/Flag Figure Description Status 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
033038	Quality flags for ground-based GNSS data Code/Flag Figure Description Status 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
033039	Quality flags for radio occultation data Code/Flag Figure Description Status 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
033041	Attribute of following value Code/Flag Figure Description Status 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
033042	Type of limit represented by following value Code/Flag Figure Description Status 0 Exclusive lower limit (>) 1 Inclusive lower limit (>=) 2 Exclusive upper limit (<) 3 Inclusive upper limit (=<) 7 Missing value
033043	AST confidence Code/Flag Figure Description Status 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
033044	ASAR quality information Code/Flag Figure Description Status 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
033047	Measurement confidence data Code/Flag Figure Description Status 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 Reception (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-band ocean retracking error 16 S-band ocean retracking error 17 Ku-band ice 1 retracking error 18 S-band ice 1 retracking error 19 Ku-band ice 2 retracking error 20 S-band ice 2 retracking error 21 Ku-band 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 initialisation mode, several errors 30 Orbit propagator status for initialisation mode, warning detected
033048	Confidence measure of SAR inversion Code/Flag Figure Description Status 0 Inversion successful 1 Inversion not successful 2 Reserved 3 Missing value
033049	Confidence measure of wind retrieval Code/Flag Figure Description Status 0 External wind direction used during inversion 1 External wind direction not used during inversion 2 Reserved 3 Missing value
033050	Global GTSPP quality flag Code/Flag Figure Description Status 0 Unqualified 1 Correct value (all checks passed) 2 Probably good but value inconsistent with statistics (differ from climatology) 3 Probably bad (spike, gradient, etc., 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 15 Missing value
033060	GqisFlagQual - individual IASI-System quality flag Code/Flag Figure Description Status 0 Good 1 Bad 2 Reserved 3 Missing value
033070	Total ozone quality Code/Flag Figure Description Status 0 Good retrieval 1 Bad aerosol information flag or NOAA-16 radiance anomaly 2 Solar zenith angle greater than 84 degrees 3 380 nm 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 8 Insufficient pixels - not processed 9 First guess good - ozone forecast data used 10 High cloud in pixel - not processed 11 Successful ozone retrieval 12 Unsuccessful ozone retrieval 15 Missing value
033071	Profile ozone quality Code/Flag Figure Description Status 0 Good retrieval 1 Solar zenith angle greater than 84 degrees 2 Difference between step 3 and profile total ozone greater than limit (25&#160;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
033072	Ozone error Code/Flag Figure Description Status 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 degrees 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
033075	Scan-level quality flags Code/Flag Figure Description Status 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 4 The measured temperatures of any instrument components (e.g., beam-splitter, scan mirror, scan baffle) are outside the allowable ranges 5 At least one of the monitored instrument temperatures has drifted more than a specified tolerance value
033076	Calibration quality flags Code/Flag Figure Description Status 1 Lunar intrusion on first deep space view 2 Lunar intrusion on second deep space view
033077	Field-of-view quality flags Code/Flag Figure Description Status 1 Degraded SDR* quality 2 Invalid SDR* quality 3 Invalid SDR* geolocation information 4 Degraded radiometric calibration 5 Invalid radiometric calibration 6 Degraded spectral calibration 7 Invalid spectral calibration 8 Fringe count error detected and corrected 9 Day/night indicator 10 Invalid RDR** data 11 Significant fringe count error detected 12 Bit trim failed
033078	Geolocation quality Code/Flag Figure Description Status 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 value
033079	Granule level quality flags Code/Flag Figure Description Status 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
033080	Scan level quality flags Code/Flag Figure Description Status 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
033081	Channel data quality flags Code/Flag Figure Description Status 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
033082	Geolocation quality flags Code/Flag Figure Description Status 7 Invalid input data (indicates that any of the spacecraft ephemeris or attitude data are invalid) 8 Bad pointing (indicates that the sensor LOS does not intersect the geoid, is near the limb, has invalid sensor angles or other similar condition) 9 Bad terrain (indicates that the algorithm could not obtain a valid terrain value) 10 Invalid solar angles 11 Missing at most a small gap of altitude and ephemeris data 12 Missing more than a small gap of altitude and ephemeris data, but no more than a granule boundary 13 Missing more than a granule boundary of altitude and ephemeris data 14 The number of encoder pulse values per delta time is not as expected 15 Solar eclipse during Earth view scan
033083	Radiance data quality flags Code/Flag Figure Description Status 7 Poor calibration quality due to bad space view offsets, OBC* view offsets, etc. or use of a previous calibration view 8 Saturated pixel 9 Missing data - data required for calibration processing are not available for processing 10 Calibrated pixel radiance out of range 11 Calibrated pixel reflectance or EBBT out of range 12 The moon has corrupted the space view 13 Scan data is not present (no valid data) 14 Quality for this scan-line is reduced. The value is determined by the combined number of steps required to find a replacement for thermistor or calibration source data 15 Bad detector
035000	FM and Regional Code number Code/Flag Figure Description Status 1023 Missing value
035001	Time frame for monitoring Code/Flag Figure Description Status 0 Real time 1 Near-real time 2 Non-real time 3 Reserved 4 Reserved 5 Reserved 6 Reserved 7 Missing value
035030	Discrepancies in the availability of expected data Code/Flag Figure Description Status 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 routing directories 4 Lack of flexibility in the routing arrangements 5 Deficiencies in the operation of GTS centres and circuits 6 Loss of data or delays in relaying data on the GTS 7 Routing of data different from the routing provided in the plan 8 Various malpractices 15 Missing value
035031	Qualifier on monitoring results Code/Flag Figure Description Status 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
035032	Cause of missing data Code/Flag Figure Description Status 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
035033	Observation and collection deficiencies Code/Flag Figure Description Status 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 routing meteorological observation 123 Missing value
035034	Statistical trends for availability of data (during the survey period(s)) Code/Flag Figure Description Status 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
035035	Reason for termination Code/Flag Figure Description Status 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
040005	Soil moisture correction flag Code/Flag Figure Description Status 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
040006	Soil moisture processing flag Code/Flag Figure Description Status 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%
040011	Interpolation flag Code/Flag Figure Description Status 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)
040012	Radiometer data quality flag Code/Flag Figure Description Status 1 18.7 GHz brightness temperature 2 23.8 GHz brightness temperature 3 34 GHz brightness temperature
040013	Radiometer brightness temperature interpretation flag Code/Flag Figure Description Status 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
040020	GqisFlagQualDetailed - quality flag for the system Code/Flag Figure Description Status 1 NZPD and complex calibration error 2 Band 3 affected by spike 3 Band 3 affected by saturation 4 Band 2 affected by spike 5 Band 1 affected by spike 6 Overflow/under flow 7 On-board processing error 8 Spectral calibration error 9 Radiometric calibration error 10 Missing AVHRR data 11 Missing IIS data 12 Missing sounder data 13 GqisFlagQual summary flag for all bands 14 On-ground processing error 15 Inter-calibration error IASI/AVHRR 16 Spare
040023	Auxiliary altimeter state flags Code/Flag Figure Description Status 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)
040024	Meteorological map availability Code/Flag Figure Description Status 0 2 maps available (6 hours apart) 1 2 maps available (> 6 hours apart) 2 1 map available; data extrapolated 3 No maps used 7 Missing value
040025	Interpolation flag for mean diurnal tide Code/Flag Figure Description Status 0 Good 1 Bad 2 Reserved 3 Missing value

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