THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - IASI-NG -
Full Name Infrared Atmospheric Sounding Interferometer - New Generation Status Being developed
Instrument Agencies EUMETSAT, CNES Maturity
Instrument Type Atmospheric temperature and humidity sounders Geometry Cross-track scanning
Instrument Technology Medium-resolution IR spectrometer Sampling Sounding
Data Access Open Access Data Format NetCDF
Measurements and Applications Measures profiles of atmospheric temperature, humidity, ozone, carbon monoxide, columns of methane, nitrous oxide, and other minor gases, and sea, ice, and land surface temperature and emissivity.
Resolution Summary Vertical: 1 - 30 km, Horizontal: 25 km
Swath Summary 2052 km
Accuracy Summary TBC
Waveband Summary MWIR - TIR: 645 to 2760 cm-1 or 3.62 - 15.5 µm (16921 spectral samples)
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, HS&M) 
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS, HS&M) 
Atmospheric temperature (at surface) 
OzoneOzone profile 
Trace gases (excluding ozone)Atmospheric Chemistry - CO (LT, HT, LS, HS&M, TC) 
Instrument Missions
METOP-SG A1 - EUMETSAT Polar System, Second Generation (2021 - 2028)
METOP-SG A2 - EUMETSAT Polar System, Second Generation (2028 - 2035)
METOP-SG A3 - EUMETSAT Polar System, Second Generation (2035 - 2042)
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