干旱区生态环境知识资源中心

This paper presents fundamental reason to Lop Nur "Ear" feature based on polarimetric decomposition technology. Lop Nur is located at the east Tarim Basin in China, and in history, all the major rivers running in Tarim Basin converged to this lowest place. Lop Nur belongs to arid region, and satisfies penetration conditions for SAR signals. Through comparison between decomposed volume scattering contribution and subsurface salinity, it is found that subsurface properties (such as salinity) is the fundamental reason to "Ear" feature. And dynamic mechanism of geomorphology builds the relationship between surface and subsurface evolution processes, and indirectly unifies previous points on the reasons to formation of Lop Nur "Ear". Polarimetric technology is anticipated to be used to retrieve more information and to help extend applications in environment of arid region.