CEOS Instrument: High Resolution Infra-red Sounder/4




Instrument:HIRS/4
Agency: NOAA
Missions: NOAA-18
 NOAA-19
 Metop-B
 Metop-A
Status:Operational
Type:Narrow-band channel IR radiometer
Description:Atmospheric temperature profiles and data on cloud parameters, humidity soundings, water vapour, total ozone content, and surface temperatures. Same as HIRS/3, with 10 km IFOV
Spatial Resolution: 20.3 km
Swath Width: 2240 km
Wavebands: VIS - TIR: 0.69 - 14.95 ?m (20 channels)
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:

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CEOS Systems Engineering Office (SEO)

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