A Parameterized Atmospheric Correction Model and its Application Simulation for Satellite Remote Sensing
卫星遥感大气订正的参数化模式及其模拟应用

A simple but accurate model of the upwelling solar radiance is of great significance for the atmospheric correction in the case of satellite remote sensing of surface parameters. In this paper, a parameterized atmospheric correction model is developed for satellite remote sensing applicatioin, which includes two newparameterization models of the path radiance and Lambertian surface-atmospheric coupled radiation. By using least square technology, the parameterized path radiance is expressed in terms of atmospheric optical depth, single scattering albedo, solar zenith angle, viewing zenith angle, azimuth angle, atmospheric asymmetry factor. Furthermore, the model is used in retrieving surface reflectance from simulated satellite data. As shown in numerical simulations, for four MODIS channels of 865 nm, 670 nm, 550 nm and 412 nm, the solar zenith angle from0°to 70°, the viewing zenith angle of 0°to 66°, and the surface reflectance of 0.05 to 0.8, standard errors of the parameterized upwelling radiance and the reflectance solutions are less than 4% and 0.03, respectively.