Some issues on calibration/validation algorithms of SSM/I data

Identification of atmospheric precipitation and Earth surfaces and algorithms of the parameter retrieval have been extensively studied during the course of SSM/I calibration/validation effort. However, the author has found that some conventional algorithms are not proper in many applications. The author has developed the vector radiative transfer modeling at SSM/I channels for Earth surfaces such as snow/vegetation, rough sea surface, scattering media of sea ice, etc., and derived several new algorithms to invert some parameters from SSM/I data. The retrieval results are well compared with the ground truth measurements.