Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China
Reclamation is an effective strategy for alleviating land scarcity in coastal areas, thereby providing additional arable land and opportunities for marine ranching. Monitoring the safety of artificial reclamation embankments is crucial for protecting these reclaimed areas. This study employed synthe...
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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/2072-4292/16/22/4320 |
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| author | Jinhua Huang Baohang Wang Xiaohe Cai Bojie Yan Guangrong Li Wenhong Li Chaoying Zhao Liye Yang Shouzhu Zheng Linjie Cui |
| author_facet | Jinhua Huang Baohang Wang Xiaohe Cai Bojie Yan Guangrong Li Wenhong Li Chaoying Zhao Liye Yang Shouzhu Zheng Linjie Cui |
| author_sort | Jinhua Huang |
| collection | DOAJ |
| description | Reclamation is an effective strategy for alleviating land scarcity in coastal areas, thereby providing additional arable land and opportunities for marine ranching. Monitoring the safety of artificial reclamation embankments is crucial for protecting these reclaimed areas. This study employed synthetic aperture radar interferometry (InSAR) using 224 Sentinel-1A data, spanning from 9 January 2016 to 8 April 2024, to investigate the deformation characteristics of the coastal reclamation embankment in Funing Bay, China. We optimized the phase-unwrapping network by employing ambiguity-detection and redundant-observation methods to facilitate the multitemporal InSAR phase-unwrapping process. The deformation results indicated that the maximum observed land subsidence rate exceeded 50 mm per year. The Funing Bay embankment exhibited a higher level of internal deformation than areas closer to the sea. Time-series analysis revealed a gradual deceleration in the deformation rate. Furthermore, a geotechnical model was utilized to predict future deformation trends. Understanding the spatial dynamics of deformation characteristics in the Funing Bay reclamation embankment will be beneficial for ensuring the safe operation of future coastal reclamation projects. |
| format | Article |
| id | doaj-art-2b9624065e4b4095933543f534e4bada |
| institution | OA Journals |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-2b9624065e4b4095933543f534e4bada2025-08-20T02:27:38ZengMDPI AGRemote Sensing2072-42922024-11-011622432010.3390/rs16224320Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, ChinaJinhua Huang0Baohang Wang1Xiaohe Cai2Bojie Yan3Guangrong Li4Wenhong Li5Chaoying Zhao6Liye Yang7Shouzhu Zheng8Linjie Cui9School of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaSchool of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaSchool of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaSchool of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaSchool of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaXi’an Center of Geological Survey, China Geological Survey, Xi’an 710054, ChinaSchool of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaCollege of Civil Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaSchool of Geography and Oceanography, Minjiang University, Fuzhou 350108, ChinaReclamation is an effective strategy for alleviating land scarcity in coastal areas, thereby providing additional arable land and opportunities for marine ranching. Monitoring the safety of artificial reclamation embankments is crucial for protecting these reclaimed areas. This study employed synthetic aperture radar interferometry (InSAR) using 224 Sentinel-1A data, spanning from 9 January 2016 to 8 April 2024, to investigate the deformation characteristics of the coastal reclamation embankment in Funing Bay, China. We optimized the phase-unwrapping network by employing ambiguity-detection and redundant-observation methods to facilitate the multitemporal InSAR phase-unwrapping process. The deformation results indicated that the maximum observed land subsidence rate exceeded 50 mm per year. The Funing Bay embankment exhibited a higher level of internal deformation than areas closer to the sea. Time-series analysis revealed a gradual deceleration in the deformation rate. Furthermore, a geotechnical model was utilized to predict future deformation trends. Understanding the spatial dynamics of deformation characteristics in the Funing Bay reclamation embankment will be beneficial for ensuring the safe operation of future coastal reclamation projects.https://www.mdpi.com/2072-4292/16/22/4320InSARFuning Bayreclamation embankmentsfuture trends |
| spellingShingle | Jinhua Huang Baohang Wang Xiaohe Cai Bojie Yan Guangrong Li Wenhong Li Chaoying Zhao Liye Yang Shouzhu Zheng Linjie Cui Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China Remote Sensing InSAR Funing Bay reclamation embankments future trends |
| title | Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China |
| title_full | Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China |
| title_fullStr | Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China |
| title_full_unstemmed | Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China |
| title_short | Coastal Reclamation Embankment Deformation: Dynamic Monitoring and Future Trend Prediction Using Multi-Temporal InSAR Technology in Funing Bay, China |
| title_sort | coastal reclamation embankment deformation dynamic monitoring and future trend prediction using multi temporal insar technology in funing bay china |
| topic | InSAR Funing Bay reclamation embankments future trends |
| url | https://www.mdpi.com/2072-4292/16/22/4320 |
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