Title :
Vector radiative transfer for scattering signature from multi-layer snow/vegetation at SSM/I channels
Author_Institution :
Wave Scattering & Remote Sensing Center, Fudan Univ., Shanghai, China
Abstract :
Vector radiative transfer (VRT) at the DMSP SSM/I channels (from 19 to 85 GHz) for multi-layer 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 the VRT equation for the 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
Keywords :
geophysical techniques; hydrological techniques; microwave measurement; millimetre wave measurement; radiative transfer; radiometry; remote sensing; snow; 19 to 85 GHz; China; EHF; SHF; SSM/I; Tibet Naqu pasture area; canopy; discrete scatterer layer; emission signature; extinction coefficient; geophysical measurement technique; hydrology; microwave radiometry; mm wave; model; multilayer snow vegetation; phase function; remote sensing; scattering signature; snowcover; snowpack; vector radiative transfer; vegetation mapping; Electromagnetic scattering; Equations; Frequency; Optical scattering; Particle scattering; Physical optics; Polarization; Rayleigh scattering; Snow; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615898
