Analyzing the Genesis of Lop Nur "Ear" Feature Based on Volume Scattering Characteristic Simulation

详细信息   

• 责任者：Gao Zhihong (State Key Laboratory of Remote Sensing Science ; Institute of Remote Sensing Applications ; Chinese Academy of Sciences ; Beijing 100101 ; China) ; Shao Yun
• 刊名：Chinese Journal of Geophysics
• 出版年：2012
• 卷期：55(3)
• 关键词：湖泊 ; lakes ; 合成孔径雷达 ; synthetic aperture radar ; 罗布泊 ; Lop Nor
• 页码：p.906-913
• 图表：4 illus., 29 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

Lop Nur is a famous dried up lake in Xinjiang Province of northwest China and finally lost its last drop of water in 1960 s. In this study,the scattering physical mechanisms are discussed based on the results of field investigation. A suitable volume scattering model is used to simulate the contribution of volume backscattering to a certain extent. Meanwhile, ALOS PALSAR images for Lop Nur were collected, and the SAR Cloude decomposition method was used to extract the volume scattering components, based on which the developed volume scattering model was validated.The root mean square error（RMSE） of horizontal and vertical polarization are 1.62% and 1.68% representatively, and the fitting effect is relatively good.