A linear relationship between ERS-2 SAR backscattering coe cient (s0) and volumetric soil moisture was determined at both ends of a rainfall gradient in Israel. A Normalized radar Backscatter soil Moisture Index (NBMI) was derived and related strongly to soil moisture concentration. This index may allow the mapping of soil moisture conditions over large areas with C band SAR data. 1.
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Shoshany et al. (2000) studied this question.
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