A New Method to Retrieve Soil Roughness Parameter
نویسندگان
چکیده
Soil roughness is a very important parameter affecting radar backscattering coefficient. This paper wants to introduce a new method to retrieve the combined roughness parameter 2 / Zs s l = on the condition of rough surface. To achieve this goal, two experiments are conducted: (1) Advanced Integral Equation Model (AIEM) is used to simulate backscattering coefficients; and (2) a new algorithm to retrieve the roughness parameter Zs from ASAR data is presented and confirmed. The root mean square error (RMSE) of results between estimated and measured is 0.075. Therefore, we prove that the proposed method is applicable to retrieve roughness parameter Zs on the rough surface.
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