Measurement and Simulation of Hill\|slope Effects on Passive Microwave Remote Sensing
地形坡面对被动微波遥感影响的试验研究

Hill\|slope terrain has an essential influence on microwave radiation due to slope angles and aspects.It is necessary to experiment in the field by observed different topographic landscapes we designed based on the trunk\|mounted microwave radiometer.In the configuration of AMSR\|E,the observed data compared with simulations of relief effects modeled by AIEM and Fresnel equation.The result shows there are 10~15K bias of brightness temperatures affected by tilted angles between flat terrain and mountainous terrain.When frequencies less than 10 GHz,the relief effect of terrain elevation becomes weakened.And we certified that microwave polarization path and direction changed for surface geometrical property,such as shape and the orientation of hills.