Validation of CERES instruments aboard the Terra and Aqua satellites

摘要

A comparison of unfiltered radiances measured by CERES instruments (FM1 and FM4) operating on two different platforms, Terra and Aqua satellites, is presented. Data for the comparison were collected at orbital crossings in July and August 2002. Using a special scanning mode, viewing geometries of the instruments were matched to provide a large data set for comparing all three channels. In addition, the data collected over Greenland were used for a more stringent test of the consistency of the shortwave radiances. Statistics include different scene types and a tests on compiled averages.