Investigation of the Forward Radiative Transfer Problem Utilizing DMSP and Nimbus 6 Data.
Final rept. 1 Apr-30 Sep 80,
UTAH UNIV SALT LAKE CITY DEPT OF METEOROLOGY
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Comparison programs involving the computed radiances and brightness temperatures, utilizing the measured temperature and mixing ratio profiles from radiosonde, and the colocated observed data are carried out for the DMSP SSH infrared and SSMT microwave sounders. In addition, a parallel comparison program using the Nimbus 6 HIRS and SCAMS data also is performed independently to examine the probable discrepancies between computations based on the conventional transfer equation and satellite observations. Appreciable discrepancies between computations and observations are shown for the SSH 15 micron CO2 temperature channels whose weighting functions peak below about 16 km. These descrepancies also are supported by the comparison results from the Nimbus 6 HIRS 15 micron CO2 channels and to a limited extent the DMSP SSMT microwave sounders.