FY-1C VISIBLE CHANNELS' ALBEDO ATTENUATION ANALYSIS AND CORRECTION EXPERIMENT

The remote sensing data of FY-1C visible channels in the Dunhuang test area in two years are used to analyze the channels' albedo attenuation. At the same time, some correction experiments have been conducted. Analysis results show that in most FY-1C channels the instrument functions well in orbit, except in Channel 1. By using a statistic method, a set of new calibration coefficients over time is obtained. There is a good coherence between experiment results and CRCS field observation.