Characterisation of the advanced microwave sounding unit, AMSU-B

Details Characterisation of the advanced microwave sounding unit, AMSU-B Characterisation of the advanced microwave sounding unit, AMSU-B

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996adspr..17...75v&link_type=abstract

Advances in Space Research, Volume 17, Issue 1, p. 75-78.

Computer Science

Sound

Scientific paper

The Advanced Microwave Sounding Unit, AMSU-B, is a five channel microwave radiometer to be flown later this decade on the series of polar orbiting spacecraft NOAA-K, L and M. It will provide global data in support of synoptic weather forecasting by sounding the water vapour content of the atmosphere from the `window' channels at 89 and 150 GHz to the strong resonance line at 183.3 GHz. It has a scan period of 2 2/3 seconds and provides 90 earth view pixels each of nominal beam width 1.1 degrees during earth scan. The key radiometric requirements of the instrument are to provide a temperature sensitivity of 1 to 1.2K depending on channel, a linearity within 0.3 of the temperature sensitivity and a beam efficiency of 95%. This paper describes the design of the AMSU-B, the ground based buy-off tests and results obtained for the Proto-Flight Model (PFM), Flight 2 (FM2) and Flight 3 (FM3) Models in the context of these requirements. The Engineering Model testing is described in reference /1/.

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