A preliminary study on monitoring the soil moisture of winter wheat area in Northern China by using ENVISAT-1/ASAR

文献类型： 外文期刊

第一作者： Wang, Limin

作者： Wang, Limin;Chen, Youqi

作者机构：

关键词： ENVISAT-1/ASAR;backscatter coefficient;soil moisture

期刊名称：DRAGON PROGRAMME MID-TERM RESULTS, PROCEEDINGS

ISSN： 0379-6566

年卷期： 2006 年 611 卷

页码：

收录情况： SCI

摘要： In this paper, ENVISAT-1/ASAR VV polarization data and the measured soil moisture in Huabei plain(Northern China) are used to make a relationship between the backscattering coefficient and soil moisture. As the result, in three days-March 21, April 28 and July 7 in 2005, the correlation of soil moistures at depths of 10cm and 20cm is obvious, but not obvious while the proportion of soil moisture volume is lower than 50%, and the relationship of soil with higher crop coverage doesn't seem to be very sensitive than the bare soil. In the study, it has been found that ASAR data has extensive application prospects in monitoring soil moisture in large scale.

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