文章基本信息

标题：Study on Relation between InSAR Coherence and Soil Moisture
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作者：Ting Zhang ; Qiming Zeng Ying Li ; Yun Xiang 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B7
页码：131-134
出版社：Copernicus Publications
摘要：Coherence is an important parameter to measure InSAR data quality in repeat-pass interferometry and soil moisture change can cause de-correlation. Relation between coherence and soil moisture was examined in this paper by using the ERS-1 interferometry pairs on Cangzhou area for which there are some heavy rain between the acquisition dates of the two images. The soil moisture is obtained based on the distributed hydrological model and the coherence is calculated by reducing the other de-correlation factors as much as possible. Correlation and regression analysis are carried out on the two images. It is found that the relation between the two may satisfy exponential distribution and is different with the area. Different soil types and land use appear different patterns
关键词：Coherence; Soil moisture; InSAR Interferometry; De-correlation