CEOS Instrument: Infrared Atmospheric Sounding Interferometer




Instrument:IASI
Agencies: CNES [Primary]
 EUMETSAT
Missions: Metop-B
 Metop-C
 Metop-A
Status:Operational
Type:Medium-resolution IR spectrometer
Description:Measures tropospheric moisture and temperature, column integrated contents of ozone, carbon monoxide, methane, dinitrogen oxide and other minor gases which affect tropospheric chemistry. Also measures sea surface and land temperature
Spatial Resolution: Vertical: 1 - 30 km, Horizontal: 25 km
Swath Width: 2052 km
Wavebands: MWIR - TIR: 3.4 - 15.5 ?m with gaps at 5 ?m and 9 ?m
Technology: Medium-resolution IR spectrometer
Description: Spectrometer operating in MWIR and TIR with spectral resolution typically around 0.1 % to retrieve temperature and humidity profiles from absorption bands of CO2 and H2O in cloud-free or partially cloudy areas, and also total columns of some greenhouse gas species (and coarse profile of O3). Cross-nadir scanning for vertical profiling and total-columns. Many thousands of channels. Spatial resolution typically 10-20 km horizontal, ~ 1 km vertical (referred to the retrieved profile). Applicable in LEO and GEO.

Measurement List:

(select measurement name to view details)



CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18