Interferometric coherence and seasonal deformation characteristics analysis of saline soil based on Sentinel-1A time series imagery

作     者：ZHANG Rui XIANG Wei LIU Guoxiang WANG Xiaowen MAO Wenfei FU Yin CAI Jialun ZHANG Bo ZHANG Rui;XIANG Wei;LIU Guoxiang;WANG Xiaowen;MAO Wenfei;FU Yin;CAI Jialun;ZHANG Bo

作者机构：Faculty of Geosciences and Environmental EngineeringSouthwest Jiaotong UniversityChengdu 611756China State-Province Joint Engineering Laboratory of Spatial Information Technology of High-Speed Rail SafetyChengdu 611756China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2021年第32卷第6期

页      面：1270-1283页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 081401[工学-岩土工程] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0814[工学-土木工程] 0811[工学-控制科学与工程] 

基　　金：supported by the National Natural Science Foundation of China(41771402,41804009) the National Key R&D Program of China(2017YFB0502700) Sichuan Science and Technology Program(2018JY0564,2019ZDZX0042,2020JDTD0003) 

主　　题：Howz-e-Soltan Salt Lake saline soil multi-temporal InSAR interferometric coherence seasonal deformation Sentinel-1A 

摘      要：Affected by the natural environmental and human activity factors,significant seasonal differences appear on the regional scattering characteristic and ground deformation of saline *** decorrelation due to season replacement limits the conventional multi-temporal interferometric synthetic aperture radar(MT-InSAR)technique and its application in such *** extend the monitoring capability in the salt desert area,we select a vast basin of saline soil around Howz-e-Soltan Salt Lake of Iran as the study area and present an improved MTInSAR for experimental *** on 131 C-band Sentinel-1 A images collected between October 2014 to July 2020,1896 refined interferograms in total are selected from all interferogram *** coherence analysis shows that the coherence in the saline soil area has an apparent seasonal variation,and the soil moisture affected by the precipitation may be the main factor that leads to the seasonal ***,the deformation characteristics of saline soil under different environmental conditions and human activity factors are compared and analyzed in *** deformation mechanisms of different saline soil types are initially revealed by combining interferometric coherence,meteorological data,and engineering geological characteristics of saline *** results would provide reference for the large-scale infrastructure construction engineering in similar saline soil areas.