THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - UVN -
Full Name UV-VIS-NIR Sounder Status Approved
Instrument Agencies EUMETSAT, ESA Maturity
Instrument Type Atmospheric chemistry Geometry Earth disk scanning
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format netCDF
Measurements and Applications Measurements of atmospheric trace gases, mainly O3, NO2, SO2, H2CO. The product list is not yet approved, the accuracy summary column lists the breakthrough user requirements.
Resolution Summary < 5 km at SSP, possibly relaxed to 50 km for wavelengths < 308 nm
Swath Summary FOV E-W: 30°W-45°E @ 40°N, N-S: 30°N-65°N
Accuracy Summary H2CO: 50%, NO2: 50%, O3: 10%, SO2: 50%
Waveband Summary UV-1: 290 - 308 nm, UV-2: 308 - 400 nm, VIS: 400 - 500 nm, NIR: 750 - 775 nm
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
CategoryParameterAccuracy
AerosolsAerosol Extinction / Backscatter (column/profile) 
Aerosol optical depth (column/profile) 
Aerosol absorption optical depth (column/profile) 
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT) 
OzoneOzone profile 
Trace gases (excluding ozone)Atmospheric Chemistry - CH4 (LT, HT, LS) 
Atmospheric Chemistry - CO (LT) 
Atmospheric Chemistry - NO2 (LT) 
Atmospheric Chemistry - CH2O (TC) 
Instrument Missions
MTG-S1 - Meteosat Third Generation - first sounding satellite (2018 - 2027)
MTG-S1 (sounding) - Meteosat Third Generation S1 Sounding Satellite 1 (2022 - 2030)
MTG-S2 - Meteosat Third Generation - second sounding satellite (2024 - 2032)
MTG-S2 (sounding) - Meteosat Third Generation S2 Sounding Satellite 2 (2030 - 2039)
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