Abstract
The polarimetric synthetic aperture radar (PolSAR) has been demonstrated a huge application potential in soil moisture (SM) inversion under vegetation. However, this promising approach has seldom been reported applied in an oasis of the northwest arid regions of China. This paper presents an analysis of component decomposition based on Radarsat-2 images. The main purpose of the analysis is to provide a preliminary recognition of the scattering mechanisms. The results of the analysis show that the scattering mechanisms in the vegetated oasis are very complex, which implies that scattering mechanisms must be decomposed before SM inversion in a vegetated surface. The analysis provide basis for the SM inversion under vegetation in an oasis of arid regions.
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