Ground Surface Effects on Atmospheric Calibration : Bidirectional Reflectance Distribution Function Effects

摘要

研究概要:Although the atmospheric calibrations for vicarious calibration and obtaining surface reflectance are strongly affected by ground surface and most of the natural surfaces show departure from lambertian behavior, the ground surface is generally assumed to be lambertian. In this study, bidirectional reflectance distribution functions over snow are simulated, and then the calculation error derived from lambertian assumption are estimated. The results show that the model for bidirectional reflectance distribution function must be included in the atmospheric calibration.