1 0 Surface data - land 0 Hourly synoptic observations from fixed-land stations (SYNOP) Operational 2 0 Surface data - land 1 Intermediate synoptic observations from fixed-land stations (SYNOP) Operational 3 0 Surface data - land 2 Main synoptic observations from fixed-land stations (SYNOP) Operational 4 0 Surface data - land 3 Hourly synoptic observations from mobile-land stations (SYNOP MOBIL) Operational 5 0 Surface data - land 4 Intermediate synoptic observations from mobile-land stations (SYNOP MOBIL) Operational 6 0 Surface data - land 5 Main synoptic observations from mobile-land stations (SYNOP MOBIL) Operational 7 0 Surface data - land 6 One-hour observations from automated stations Operational 8 0 Surface data - land 7 n-minute observations from AWS stations Operational 9 0 Surface data - land 8 Radiation observations from one-hour period Operational 10 0 Surface data - land 9 Radiation observations from n-minute period Operational 11 0 Surface data - land 10 Routine aeronautical observations (METAR) Operational 12 0 Surface data - land 11 Special aeronautical observations (SPECI) Operational 13 0 Surface data - land 14 Ground-based GPS humidity observations (GPSIWV) Operational 14 0 Surface data - land 20 Climatological observations (CLIMAT) Operational 15 0 Surface data - land 30 Sferics locations Operational 16 0 Surface data - land 40 Hydrologic reports Operational 17 0 Surface data - land 50 Hourly synoptic observations with supplementary one-hour data Operational 18 0 Surface data - land 51 Intermediate synoptic observations with supplementary one-hour data Operational 19 0 Surface data - land 52 Main synoptic observations with supplementary one-hour data Operational 20 1 Surface data - sea 0 Synoptic observations (SHIP) Operational 21 1 Surface data - sea 6 One-hour observations from automated stations Operational 22 1 Surface data - sea 7 n-minute observations from AWS stations Operational 23 1 Surface data - sea 20 Climatological observations (CLIMAT SHIP) Operational 24 1 Surface data - sea 25 Buoy observation (BUOY) Operational 25 1 Surface data - sea 30 Tide gauge Operational 26 1 Surface data - sea 31 Observed water level time series Operational 27 2 Vertical soundings (other than satellite) 1 Upper-wind reports from fixed-land stations (PILOT) Operational 28 2 Vertical soundings (other than satellite) 2 Upper-wind reports from ships (PILOT SHIP) Operational 29 2 Vertical soundings (other than satellite) 3 Upper-wind reports from mobile land stations (PILOT MOBIL) Operational 30 2 Vertical soundings (other than satellite) 4 Upper-level temperature/humidity/wind reports from fixed-land stations (TEMP) Operational 31 2 Vertical soundings (other than satellite) 5 Upper-level temperature/humidity/wind reports from ships (TEMP SHIP) Operational 32 2 Vertical soundings (other than satellite) 6 Upper-level temperature/humidity/wind report from mobile land stations (TEMP MOBIL) Operational 33 2 Vertical soundings (other than satellite) 7 Upper-level temperature/humidity/wind reports from dropwinsondes (TEMP DROP) Operational 34 2 Vertical soundings (other than satellite) 10 Wind profiler reports Operational 35 2 Vertical soundings (other than satellite) 11 RASS temperature profiles Operational 36 2 Vertical soundings (other than satellite) 20 ASDAR/ACARS profiles (AMDAR) Operational 37 2 Vertical soundings (other than satellite) 21 Profiles of atmospheric constituents concentrations Operational 38 2 Vertical soundings (other than satellite) 25 Climatological observations from fixed-land stations (CLIMAT TEMP) Operational 39 2 Vertical soundings (other than satellite) 26 Climatological observations from ships (CLIMAT TEMP SHIP) Operational 40 3 Vertical soundings (satellite) 0 Temperature (SATEM) Operational 41 3 Vertical soundings (satellite) 1 TIROS (TOVS) Operational 42 3 Vertical soundings (satellite) 2 ATOVS Operational 43 3 Vertical soundings (satellite) 3 AMSU-A Operational 44 3 Vertical soundings (satellite) 4 AMSU-B Operational 45 3 Vertical soundings (satellite) 5 HIRS Operational 46 3 Vertical soundings (satellite) 6 MHS Operational 47 3 Vertical soundings (satellite) 7 IASI Operational 48 3 Vertical soundings (satellite) 20 IR temperature/humidity sounding Operational 49 3 Vertical soundings (satellite) 30 Hyperspectral temperature/humidity sounding Operational 50 3 Vertical soundings (satellite) 40 MW temperature/humidity sounding Operational 51 3 Vertical soundings (satellite) 50 Radio occultation sounding Operational 52 4 Single level upper-air data (other than satellite) 0 ASDAR/ACARS (AMDAR) Operational 53 4 Single level upper-air data (other than satellite) 1 Manual (AIREP, PIREP) Operational 54 5 Single level upper-air data (satellite) 0 Cloud wind data (SATOB) Operational 55 5 Single level upper-air data (satellite) 1 Cloud properties Operational 56 6 Radar data 0 Reflectivity data Operational 57 6 Radar data 1 Doppler wind profiles Operational 58 6 Radar data 2 Derived products Operational 59 6 Radar data 3 Ground radar weather (RADOB) Operational 60 7 Synoptic features 0 Forecast tropical cyclone tracks from EPS Operational 61 7 Synoptic features 1 Squall line Operational 62 8 Physical/chemical constituents 0 Surface ozone Operational 63 8 Physical/chemical constituents 1 Ozone vertical sounding Operational 64 8 Physical/chemical constituents 2 Total ozone Operational 65 8 Physical/chemical constituents 3 Acid rain Operational 66 9 Dispersal and transport 0 Trajectories, analysis or forecast Operational 67 10 Radiological data 1 Observation (RADREP) Operational 68 10 Radiological data 2 Forecast (RADOF) Operational 69 12 Surface data (satellite) 0 ERS-uwa Operational 70 12 Surface data (satellite) 1 ERS-uwi Operational 71 12 Surface data (satellite) 2 ERS-ura Operational 72 12 Surface data (satellite) 3 ERS-uat Operational 73 12 Surface data (satellite) 4 SSM/I radiometer Operational 74 12 Surface data (satellite) 5 Quikscat Operational 75 12 Surface data (satellite) 6 Surface temp./radiation (SATOB) Operational 76 12 Surface data (satellite) 7 ASCAT data Operational 77 12 Surface data (satellite) 8 Soil moisture Operational 78 12 Surface data (satellite) 9 Normalized differential vegetation index (NDVI) Operational 79 12 Surface data (satellite) 10 Normalized radar backscatter Operational 80 12 Surface data (satellite) 11 Surface emissivity Operational 81 12 Surface data (satellite) 12 Sea-surface temperature Operational 82 21 Radiances (satellite measured) 0 Earth radiation budget Operational 83 21 Radiances (satellite measured) 5 Cross-track infrared sounder Operational 84 21 Radiances (satellite measured) 6 Advanced technology microwave sounder Operational 85 21 Radiances (satellite measured) 7 Visible/infrared imager radiometer suite Operational 86 22 Radar (satellite) but not altimeter and scatterometer 0 Cloud and precipitation radar Operational 87 22 Radar (satellite) but not altimeter and scatterometer 1 Synthetic aperture radar Operational 88 23 Lidar (satellite) 0 Lidar based missions (for wind, for cloud/aerosol, for water vapour, for altimetry) Operational 89 24 Scatterometry (satellite) 0 Wind scatterometry Operational 90 25 Altimetry (satellite) 0 Radar altimetry Operational 91 26 Spectrometry (satellite) 0 Cross nadir shortwave spectrometry (for chemistry) Operational 92 26 Spectrometry (satellite) 1 Cross nadir IR spectrometry (for chemistry) Operational 93 26 Spectrometry (satellite) 2 Limb sounding shortwave spectrometry Operational 94 26 Spectrometry (satellite) 3 Limb sounding IR spectrometry Operational 95 26 Spectrometry (satellite) 4 Limb sounding sub-millimetre wave spectrometry Operational 96 30 Calibration dataset (satellite) 0 Subsetted data Operational 97 30 Calibration dataset (satellite) 1 Collocated data Operational 98 30 Calibration dataset (satellite) 2 On-board calibration data Operational 99 30 Calibration dataset (satellite) 3 Bias monitoring Operational 100 30 Calibration dataset (satellite) 4 Near-real-time correction Operational 101 30 Calibration dataset (satellite) 5 Re-analysis correction Operational 102 31 Oceanographic data 0 Surface observation Operational 103 31 Oceanographic data 1 Surface observation along track (TRACKOB) Operational 104 31 Oceanographic data 2 Spectral wave observation (WAVEOB) Operational 105 31 Oceanographic data 3 Bathythermal observation (BATHY) Operational 106 31 Oceanographic data 4 Subsurface floats (profile) Operational 107 31 Oceanographic data 5 XBT/XCTD profiles (TESAC) Operational 108 31 Oceanographic data 6 Waves reports Operational 109 31 Oceanographic data 7 Tsunameter data Operational 110 101 Image data (satellite) 0 Multi-purpose VIS/IR imagery Operational 111 101 Image data (satellite) 1 Conical scanning MW imagery (intermediate frequencies) Operational 112 101 Image data (satellite) 2 Low frequency MW imagery Operational 113 101 Image data (satellite) 3 Ocean colour imagery Operational 114 101 Image data (satellite) 4 Imagery with special viewing geometry Operational 115 101 Image data (satellite) 5 Lightning imagery Operational 116 101 Image data (satellite) 6 High-resolution shortwave imagery for land observation Operational 117 101 Image data (satellite) 7 SMOS data Operational