Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021
The combined effects of global warming and human activities have intensified land subsidence (LS), limiting the sustainable development of economy in delta regions. Despite the potential of interferometric synthetic aperture radar (InSAR) for monitoring LS, its application across vast delta regions...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10836200/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832576757723561984 |
|---|---|
| author | Hongbo Jiang Guangcai Feng Yuexin Wang Zhiqiang Xiong Hesheng Chen Ning Li Zeng Lin |
| author_facet | Hongbo Jiang Guangcai Feng Yuexin Wang Zhiqiang Xiong Hesheng Chen Ning Li Zeng Lin |
| author_sort | Hongbo Jiang |
| collection | DOAJ |
| description | The combined effects of global warming and human activities have intensified land subsidence (LS), limiting the sustainable development of economy in delta regions. Despite the potential of interferometric synthetic aperture radar (InSAR) for monitoring LS, its application across vast delta regions may be hindered by complex data processing, high computational demands, and the need for standardized results. To overcome these challenges, we adopted the multitemporal InSAR technique, integrating a frame data parallel processing strategy and an overall adjustment correction method, to obtain the temporal deformation sequences of the entire Yangtze River Delta (YRD) region in China from January 2019 to December 2021. We calculated the annual average deformation rate and identified deformation areas, with 73.5% concentrated along the Yangtze River, along the coastline, and within the northern Anhui mining area. A significant correlation was observed between LS and anthropogenic activities, such as economic development and land reclamation activities. Further analysis reveals that the increase in GDP growth rate may contribute to LS. Approximately, 38% of the reclaimed area in the YRD is at risk of LS. Land reclamation activities present a dichotomy, with Hangzhou Bay as the dividing line. This study provides a new perspective and scientific basis for understanding and analyzing LS in deltaic environments, contributing to sustainable development and advancing wide-area InSAR deformation monitoring. |
| format | Article |
| id | doaj-art-5c62abd4d7534c4190bfdbdcc6cadeaa |
| institution | Kabale University |
| issn | 1939-1404 2151-1535 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj-art-5c62abd4d7534c4190bfdbdcc6cadeaa2025-01-31T00:00:25ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-01184174418710.1109/JSTARS.2025.352774810836200Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021Hongbo Jiang0https://orcid.org/0009-0003-4515-4863Guangcai Feng1https://orcid.org/0000-0003-4815-495XYuexin Wang2Zhiqiang Xiong3https://orcid.org/0009-0007-9582-0544Hesheng Chen4https://orcid.org/0009-0009-5894-5318Ning Li5Zeng Lin6School of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaWuhan Geomatics Institute, Wuhan, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Mathematics and Physics, University of South China, Hengyang, ChinaThe combined effects of global warming and human activities have intensified land subsidence (LS), limiting the sustainable development of economy in delta regions. Despite the potential of interferometric synthetic aperture radar (InSAR) for monitoring LS, its application across vast delta regions may be hindered by complex data processing, high computational demands, and the need for standardized results. To overcome these challenges, we adopted the multitemporal InSAR technique, integrating a frame data parallel processing strategy and an overall adjustment correction method, to obtain the temporal deformation sequences of the entire Yangtze River Delta (YRD) region in China from January 2019 to December 2021. We calculated the annual average deformation rate and identified deformation areas, with 73.5% concentrated along the Yangtze River, along the coastline, and within the northern Anhui mining area. A significant correlation was observed between LS and anthropogenic activities, such as economic development and land reclamation activities. Further analysis reveals that the increase in GDP growth rate may contribute to LS. Approximately, 38% of the reclaimed area in the YRD is at risk of LS. Land reclamation activities present a dichotomy, with Hangzhou Bay as the dividing line. This study provides a new perspective and scientific basis for understanding and analyzing LS in deltaic environments, contributing to sustainable development and advancing wide-area InSAR deformation monitoring.https://ieeexplore.ieee.org/document/10836200/Interferometric synthetic aperture radar (InSAR)land subsidence (LS)Yangtze river delta (YRD) |
| spellingShingle | Hongbo Jiang Guangcai Feng Yuexin Wang Zhiqiang Xiong Hesheng Chen Ning Li Zeng Lin Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Interferometric synthetic aperture radar (InSAR) land subsidence (LS) Yangtze river delta (YRD) |
| title | Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 |
| title_full | Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 |
| title_fullStr | Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 |
| title_full_unstemmed | Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 |
| title_short | Land Subsidence in the Yangtze River Delta, China Explored Using InSAR Technique From 2019 to 2021 |
| title_sort | land subsidence in the yangtze river delta china explored using insar technique from 2019 to 2021 |
| topic | Interferometric synthetic aperture radar (InSAR) land subsidence (LS) Yangtze river delta (YRD) |
| url | https://ieeexplore.ieee.org/document/10836200/ |
| work_keys_str_mv | AT hongbojiang landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT guangcaifeng landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT yuexinwang landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT zhiqiangxiong landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT heshengchen landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT ningli landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 AT zenglin landsubsidenceintheyangtzeriverdeltachinaexploredusinginsartechniquefrom2019to2021 |