Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing
Since the Wenchuan earthquake in 2008, Old Beichuan County-town has experienced significant subsidence due to the disruption of the geological environment and the concurrent increase in precipitation. The ongoing land surface deformation poses a threat to the preservation and utilization of the Beic...
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MDPI AG
2024-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/16/22/4249 |
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| author | Jing Fan Weihong Wang Jialun Cai Zhouhang Wu Xiaomeng Wang Hui Feng Yitong Yao Hongyao Xiang Xinlong Luo |
| author_facet | Jing Fan Weihong Wang Jialun Cai Zhouhang Wu Xiaomeng Wang Hui Feng Yitong Yao Hongyao Xiang Xinlong Luo |
| author_sort | Jing Fan |
| collection | DOAJ |
| description | Since the Wenchuan earthquake in 2008, Old Beichuan County-town has experienced significant subsidence due to the disruption of the geological environment and the concurrent increase in precipitation. The ongoing land surface deformation poses a threat to the preservation and utilization of the Beichuan National Earthquake Ruins Museum (BNERM), as well as to the safety of urban residents’ lives. However, the evolutionary characteristics of surface deformation in these areas remain largely unexplored. Here, we focused on the BNERM control zone and employed the small-baseline subset interferometric synthetic aperture radar (SBAS-InSAR) technique to accurately measure land surface deformation and its spatiotemporal changes. Subsequently, we integrated this data with land cover types and precipitation to investigate the driving factors of deformation. The results indicate a slight overall elevation increase in the study area from June 2015 to May 2023, with deformation rates varying between −35.2 mm/year and 22.9 mm/year. Additionally, four unstable slopes were identified within the BNERM control zone. Our analysis indicates that surface deformation in the study area is closely linked to changes in land cover types and precipitation, exhibiting a seasonal cumulative pattern, and active geological activity may also be a cause of deformation. This study provides invaluable insights into the surface deformation characteristics of the BNERM and can serve as a scientific foundation for the protection of earthquake ruins, risk assessment, early warning, and disaster prevention measures. |
| format | Article |
| id | doaj-art-10b9e4b69e244d27bccec3a91ba9cf15 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-10b9e4b69e244d27bccec3a91ba9cf152024-11-26T18:20:10ZengMDPI AGRemote Sensing2072-42922024-11-011622424910.3390/rs16224249Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR ProcessingJing Fan0Weihong Wang1Jialun Cai2Zhouhang Wu3Xiaomeng Wang4Hui Feng5Yitong Yao6Hongyao Xiang7Xinlong Luo8School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, ChinaSince the Wenchuan earthquake in 2008, Old Beichuan County-town has experienced significant subsidence due to the disruption of the geological environment and the concurrent increase in precipitation. The ongoing land surface deformation poses a threat to the preservation and utilization of the Beichuan National Earthquake Ruins Museum (BNERM), as well as to the safety of urban residents’ lives. However, the evolutionary characteristics of surface deformation in these areas remain largely unexplored. Here, we focused on the BNERM control zone and employed the small-baseline subset interferometric synthetic aperture radar (SBAS-InSAR) technique to accurately measure land surface deformation and its spatiotemporal changes. Subsequently, we integrated this data with land cover types and precipitation to investigate the driving factors of deformation. The results indicate a slight overall elevation increase in the study area from June 2015 to May 2023, with deformation rates varying between −35.2 mm/year and 22.9 mm/year. Additionally, four unstable slopes were identified within the BNERM control zone. Our analysis indicates that surface deformation in the study area is closely linked to changes in land cover types and precipitation, exhibiting a seasonal cumulative pattern, and active geological activity may also be a cause of deformation. This study provides invaluable insights into the surface deformation characteristics of the BNERM and can serve as a scientific foundation for the protection of earthquake ruins, risk assessment, early warning, and disaster prevention measures.https://www.mdpi.com/2072-4292/16/22/4249time series InSARdeformation monitoringunstable slopesearthquake ruins |
| spellingShingle | Jing Fan Weihong Wang Jialun Cai Zhouhang Wu Xiaomeng Wang Hui Feng Yitong Yao Hongyao Xiang Xinlong Luo Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing Remote Sensing time series InSAR deformation monitoring unstable slopes earthquake ruins |
| title | Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing |
| title_full | Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing |
| title_fullStr | Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing |
| title_full_unstemmed | Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing |
| title_short | Deformation Monitoring and Analysis of Beichuan National Earthquake Ruins Museum Based on Time Series InSAR Processing |
| title_sort | deformation monitoring and analysis of beichuan national earthquake ruins museum based on time series insar processing |
| topic | time series InSAR deformation monitoring unstable slopes earthquake ruins |
| url | https://www.mdpi.com/2072-4292/16/22/4249 |
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