Title: On-orbit calibration of spaceborne microwave radiometer by using stable surface target
Abstract:Accurate calibration is needed for Quantitative application of space-borne passive microwave radiometers. In this paper, the surface target which can be taken as the calibration reference target are s...Accurate calibration is needed for Quantitative application of space-borne passive microwave radiometers. In this paper, the surface target which can be taken as the calibration reference target are studied, and the emission model was developed for the emissivity computation for these targets. It is found that in dense covered forest area, for 19-89GHz frequencies, microwave radiation brightness temperature can be calculated with an accuracy of 1K. For the frequency channel as low as 6 and 10 GHz, the desert area such as sahara can be taken as reference calibration target. And the established model accuracy in desert area is within 2K by using the NCEP reanalysis dataset as input.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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