RADIATIVE TRANSFER OF SNOWPACK/VEGETATION CANOPY AT THE SSM/I CHANNELS AND SATELLITE DATA ANALYSIS

摘要

Vector radiative transfer (VRT) nt tile DMSP SSM/I (Special Sensor Microwave Imager) channels (from 19 to 85 GHz) Sor multilayer of discrete scatterers as a model of snowpack/vegetation canopy is developed. Using the physical optics approximation, the scattering, extinction coefficients, and phase function of VRT equation for vegetation canopy are derived. The dense medium VRT is applied to the snow layer. Numerical results of two coupled VRT equations simulate scattering and emission signature from snowpack/vegetation canopy at SSM/I channels. Numerical results are applied to simulation and analysis of the SSM/I observations over China's northeast forest and Tibet Naqu pasture areas. (C) Elsevier Science Inc., 1997. [References: 13]