Atmospheric and topographic correction of satellite data over mountainous terrain

An analytic model for the radiance applicable to the remote sensing of mountainous terrain is described. The atmosphere is treated as a multiple scattering, horizontally uniform layer bounded by non-homogeneous Lambertian surface. This radiance model includes the radiation arising from adjacent terrain outside the instantaneous field of view (IFOV) of the sensor. The authors take occlusion by adjacent terrain into account in estimating the diffuse sky irradiance on the target. Furthermore, the correction algorithm for removing atmospheric and topographic effects from high-resolution satellite images is formulated, and the image correction for the Landsat TM image is performed