Geological Disaster Identification and Monitoring in Ruoqiang County Based on SBAS-InSAR Technology
[Purposes]Xinjiang is a vast region with frequent geological disasters which seriously threaten the safety of people's production and life,so it is urgent to carry out large-scale geological hazard identi-fication and monitoring.[Methods]Based on SBAS-InSAR technology,geological disasters in Ruoqiang country,Xinjiang were identified and monitored in this paper.The Sentinel-1A data of two maps cover-ing the working area from January 2020 to November 2022 were selected for processing.[Findings]The cumulative deformation in the working area was obtained and,combined with optical remote sensing im-ages,13 hidden geological disasters with deformation characteristics were interpreted.The accuracy of field verification was 77%,and 10 points were finally identified as geological disasters.[Conclusions]Compared with the point monitoring technology,InSAR technology has a congenital advantage for large-scale geological disaster identification,which can quickly and conveniently obtain the deformation of the whole work area,and plays an important role in geological disaster identification.
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