CEOS Instrument: IR Sounder




Instrument:Sounder (INSAT)
Agency: ISRO
Missions: INSAT-3D
 INSAT-3DR
 INSAT-3DS
Status:Being developed
Type:Narrow-band channel IR radiometer
Description:Atmospheric soundings, atmospheric stability, thermal gradient winds
Spatial Resolution: 10 x 10 km
Swath Width: Full (Full Earth disc sounding), Program (Options provided for for Sector Scans)
Wavebands: SWIR: 3.74 - 4.74 ?m; MWIR: 6.51 - 11.03 ?m; TIR: 12.02 - 14.71 ?m; VIS: 0.55 - 0.75 ?m
Technology: Narrow-band channel IR radiometer
Description: Radiometer operating in MWIR and TIR with many channels of bandwidth around 1 % in absorption bands of CO2 and H2O to retrieve temperature and humidity profiles in cloud-free or partially cloudy areas. Cross-nadir scanning for vertical profiling. A few tens of channels. Spatial resolution typically 10-20 km horizontal, ~ 2 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