THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - IRS -
Full Name Infra-Red Sounder Status Being developed
Instrument Agencies EUMETSAT, ESA Maturity
Instrument Type Atmospheric temperature and humidity sounders Geometry Earth disk scanning
Instrument Technology Medium-resolution IR spectrometer Sampling Sounding
Data Access Open Access Data Format NetCDF, BUFR
Measurements and Applications Measurements of vertically resolved clear sky atmospheric motion vectors, temperature and water vapour profiles.
Resolution Summary Horizontal: 4 km at SSP, Vertical: 1 km
[Best Resolution: 4000m]
Swath Summary 640 x 640 km dwells, step and stare, moving alternatley E-W and W-E moving up S-N one dwell step at the end of each row of dwells. Each disc is divided in 4 areas of Local Area Coverage (LAC).
Accuracy Summary clear sky AMVs: 2 m/s, temperature profile: 1 K, water vapour profile: 5%
Waveband Summary LWIR: 700 - 1210 cm^-1, MWIR: 1600 - 2175 cm^-1
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)
Instrument Measurements
CategoryParameterAccuracy
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, LS) 
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS) 
Atmospheric WindsWind profile (horizontal) 
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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