Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018
After the bursting of the Zhuonai Lake in Hoh Xil, Qinghai-Tibet Plateau, in 2011, the water area and level of the Salt Lake increased rapidly. The lake area expanding would accelerate the melting of permafrost and contribute to many severe environmental issues, including the surface deformation aro...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9229192/ |
| _version_ | 1819137255478919168 |
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| author | Zhengjia Zhang Mengmeng Wang Xiuguo Liu Chao Wang Hong Zhang |
| author_facet | Zhengjia Zhang Mengmeng Wang Xiuguo Liu Chao Wang Hong Zhang |
| author_sort | Zhengjia Zhang |
| collection | DOAJ |
| description | After the bursting of the Zhuonai Lake in Hoh Xil, Qinghai-Tibet Plateau, in 2011, the water area and level of the Salt Lake increased rapidly. The lake area expanding would accelerate the melting of permafrost and contribute to many severe environmental issues, including the surface deformation around the lake. In this article, we retrieve the deformation of the permafrost area around the Salt lake using the time-series synthetic aperture radar (SAR) interferometry (InSAR) method with ENVISAT and Sentinel-1A images from October 2006 to December 2018. In order to get more measurement points, the distributed scatterers were utilized. Moreover, a deformation model combining two components, long-term linear deformation related with temperature, was adopted in the InSAR processing. The experimental results show that before the outburst of the Zhuonai Lake, the ground deformation was not obvious with the mean deformation rate of -5 to 5 mm/year from the ENVISAT results. From 2014 to 2018, the ground deformation around the Salt Lake gradually increased with the maximum deformation rate over -25 mm/year. The water area and the water level of Salt Lake were extracted based on the SAR amplitude images and Cryosat-2 radar altimeter data, showing a rapid increasing trend after 2017. The time-series displacement in the south of lake shows a high correlation with the lake level history. This study clearly illustrate that time-series InSAR could provide valuable information for monitoring potential hazards in permafrost region. |
| first_indexed | 2024-12-22T10:47:58Z |
| format | Article |
| id | doaj.art-2df9065b16844163b24ae5d68ef01afd |
| institution | Directory Open Access Journal |
| issn | 2151-1535 |
| language | English |
| last_indexed | 2024-12-22T10:47:58Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-2df9065b16844163b24ae5d68ef01afd2022-12-21T18:28:53ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352021-01-011485886910.1109/JSTARS.2020.30318939229192Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018Zhengjia Zhang0https://orcid.org/0000-0003-0930-6914Mengmeng Wang1https://orcid.org/0000-0001-5379-5773Xiuguo Liu2Chao Wang3Hong Zhang4School of Geography and Information Engineering, China University of Geosciences, Wuhan, ChinaSchool of Geography and Information Engineering, China University of Geosciences, Wuhan, ChinaSchool of Geography and Information Engineering, China University of Geosciences, Wuhan, ChinaKey Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, ChinaInstitute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, ChinaAfter the bursting of the Zhuonai Lake in Hoh Xil, Qinghai-Tibet Plateau, in 2011, the water area and level of the Salt Lake increased rapidly. The lake area expanding would accelerate the melting of permafrost and contribute to many severe environmental issues, including the surface deformation around the lake. In this article, we retrieve the deformation of the permafrost area around the Salt lake using the time-series synthetic aperture radar (SAR) interferometry (InSAR) method with ENVISAT and Sentinel-1A images from October 2006 to December 2018. In order to get more measurement points, the distributed scatterers were utilized. Moreover, a deformation model combining two components, long-term linear deformation related with temperature, was adopted in the InSAR processing. The experimental results show that before the outburst of the Zhuonai Lake, the ground deformation was not obvious with the mean deformation rate of -5 to 5 mm/year from the ENVISAT results. From 2014 to 2018, the ground deformation around the Salt Lake gradually increased with the maximum deformation rate over -25 mm/year. The water area and the water level of Salt Lake were extracted based on the SAR amplitude images and Cryosat-2 radar altimeter data, showing a rapid increasing trend after 2017. The time-series displacement in the south of lake shows a high correlation with the lake level history. This study clearly illustrate that time-series InSAR could provide valuable information for monitoring potential hazards in permafrost region.https://ieeexplore.ieee.org/document/9229192/Deformationdistributed scatterer (DS)Qinghai-Tibet plateau (QTP)salt lakesynthetic aperture radar interferometry (InSAR) |
| spellingShingle | Zhengjia Zhang Mengmeng Wang Xiuguo Liu Chao Wang Hong Zhang Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Deformation distributed scatterer (DS) Qinghai-Tibet plateau (QTP) salt lake synthetic aperture radar interferometry (InSAR) |
| title | Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 |
| title_full | Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 |
| title_fullStr | Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 |
| title_full_unstemmed | Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 |
| title_short | Map and Quantify the Ground Deformation Around Salt Lake in Hoh Xil, Qinghai-Tibet Plateau Using Time-Series InSAR From 2006 to 2018 |
| title_sort | map and quantify the ground deformation around salt lake in hoh xil qinghai tibet plateau using time series insar from 2006 to 2018 |
| topic | Deformation distributed scatterer (DS) Qinghai-Tibet plateau (QTP) salt lake synthetic aperture radar interferometry (InSAR) |
| url | https://ieeexplore.ieee.org/document/9229192/ |
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