MONITORING GEOLOGICAL HAZARDS WITH INSAR

被引：1
|
作者：
Shao, Tianming [1 ]
Zheng, Zezhong [1 ,2 ]
He, Yong [3 ]
Huang, Weifeng [1 ]
Xie, Chuhang [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Resources & Environm, Chengdu 611731, Sichuan, Peoples R China
[2] Minist Land & Resources, Key Lab Urban Land Resources Monitoring & Simulat, Shenzhen 518040, Guangdong, Peoples R China
[3] Sichuan Res Inst Ecosyst Restorat & Geohazard Pre, Chengdu 610081, Sichuan, Peoples R China
来源：
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022) | 2022年
关键词：
Monitoring geological hazards; InSAR;
D O I：
10.1109/IGARSS46834.2022.9884003
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
In recent years, the number of geological disasters in Sichuan province has significantly increased due to the influence of earthquakes and extreme climate, as well as the disturbance to the geological environment by human activities. In the paper, the interferometric synthetic aperture radar (InSAR) technology was introduced to monitor potential geological hazards in different elevation intervals, taking parts of Dujiangyan City, Wenchuan County, and Mao County in Sichuan Province, China as examples. Firstly, the data such as synthetic aperture radar (SAR) images and precision orbit determination (POD) precise orbit ephemerides from 2018 to 2020, high-resolution optical satellite images and digital elevation model (DEM) were collected. Secondly, the differential InSAR (D-InSAR), persistent scatterer InSAR (PS-InSAR), small baseline subset InSAR (SBAS-InSAR), offset-tracking, and distributed scatterer InSAR (DS-InSAR) algorithms were used to invert the surface deformation of the study area. Finally, the remote sensing interpretation methods were comprehensively combined with the InSAR deformation anomaly monitoring results to monitor the potential geological hazards.
引用
收藏
页码：2558 / 2561
页数：4
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