Atmospheric Corrections Of Remote Sensing Images Based On The Radiative Transfer Model

Due to the presence of the atmosphere on the Sun-target-Sensor path, the atmosphere modifies the radiance reflected at the ground and contributes an additive path radiance term in the process of acquiring remote sensing image. The space -based and airborne remote sensing information in the solar spectral range do not directly characterize the surface objects. It becomes serious impediments for the quantitative analysis and measurement of resources and environment. Ergo, the atmospheric effects are necessary to be removed, especially in land surface remote sensing and applications. Based on analyses all kinds of atmospheric effect in the process of acquiring remote sensing image, interviewing the common principle of atmospheric correction and summarize it. Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) level-lA visible image is executed atmospheric correction using two atmospheric radiative transfer model, 6S(Second Simulation of Satellite Signal in the Solar Spectrum) and SBDART (Santa Barbara DISORT Atmospheric Radiative Transfer). The plane-parallel atmospheric model is validated in the high-latitude Antarctica. Finally, through sensitivity analysis, discussing effect degree of the all kinds of atmospheric parameters to the result of atmospheric correction in Antarctica.