CEOS Instrument: Atmospheric Infra-red Sounder




Instrument:AIRS
Agency: NASA
Mission: Aqua
Status:Operational
Type:Medium-resolution IR spectrometer
Description:High spectral resolution measurement of temperature and humidity profiles in the atmosphere. Long-wave Earth surface emissivity. Cloud diagnostics. Trace gas profiles. Surface temperatures.
Spatial Resolution: 1.1 degree (13 x 13 km at nadir)
Swath Width: +/-48.95 degrees
Wavebands: VIS - TIR: 0.4 - 1.7 ?m, 3.4 - 15.4 ?m, Has approximately 2382 bands from VIS to TIR
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:

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CEOS Systems Engineering Office (SEO)

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