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Application of an improved multi-temporal InSAR method and forward geophysical model to document subsidence and rebound of the Chinese Loess Plateau following land reclamation in the Yan'an New District

文献类型：期刊论文

作者Zhou, Chaodong5,6; Lan, Hengxing4,6; Burgmann, Roland3; Warner, Timothy A.2; Clague, John J.1; Li, Langping6; Wu, Yuming6; Zhao, Xiaoxia5,6; Zhang, Yixing5,6; Yao, Jiaming5,6
刊名REMOTE SENSING OF ENVIRONMENT
出版日期2022-09-15
卷号279期号:N/A页码:17
关键词InSAR MT-InSAR Land subsidence Rebound Land reclamation Yan?an New District China
ISSN号0034-4257
DOI10.1016/j.rse.2022.113102
英文摘要Land reclamation in the Yan'an New District (YND) on the Chinese Loess Plateau is one of the largest earthworks projects in the world, involving the excavation of loess from ridges and the deposition of the material in adjacent valleys, flattening an area of more than 78 km2. It can take multiple years for the landscape to adjust to the new topography after the earthworks are completed, with subsidence in the fill areas and uplift in the areas of excavation. Understanding the pattern and extent of this differential vertical movement has great importance for ensuring the structural integrity of any infrastructure built on the site. We therefore studied the spatial deformation field of the YND from January 2015 to December 2018 using satellite synthetic aperture radar interferometry (InSAR) technology. Persistent scatterers (PS) and distributed scatterers (DS) were combined in a twotier network to overcome problems with temporal decorrelation of the InSAR phase signals. The derived deformation field was validated with in-situ ground leveling and GNSS measurements, and interpreted using a forward geophysical model. The results indicate that our approach provides a more detailed understanding of the deformation than conventional PSI and SBAS methods. Subsidence of up to 87 mm/yr occurred over about 4.4 km2 of the fill region, and uplift of up to 26 mm/yr in the excavated areas. There is a strong linear relationship between these displacements and prior topographic elevation change. The primary cause of subsidence in fill areas is compaction of remoulded loess. Instantaneous elastic and gradual poroelastic deformation are the main causes of uplift in excavated areas.
WOS关键词SURFACE DEFORMATION ; EARTH ; CALIFORNIA ; COLLAPSIBILITY ; VALLEY
资助项目National Natural Science Foundation of China[42041006] ; National Natural Science Foundation of China[41790443] ; National Natural Science Foundation of China[41727806] ; National Natural Science Foundation of China[41941019] ; National Natural Science Foundation of China[41701458] ; National Natural Science Foundation of China[41807291] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA23090301] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA19040304] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences (CAS)[QYZDY-SSW-DQC019] ; Innovation Project of LREIS, CAS[O88RAA02YA] ; 111 Center, Program of the Ministry of Education of China[B18046] ; China Scholarship Council
WOS研究方向Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000810381300001
出版者ELSEVIER SCIENCE INC
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences (CAS) ; Innovation Project of LREIS, CAS ; 111 Center, Program of the Ministry of Education of China ; China Scholarship Council
源URL[http://ir.igsnrr.ac.cn/handle/311030/179670]  
专题中国科学院地理科学与资源研究所
作者单位1.Simon Fraser Univ, Dept Earth Sci, Burnaby, BC, Canada
2.West Virginia Univ, Dept Geol & Geog, Morgantown, WV USA
3.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA USA
4.Changan Univ, Sch Geol Engn & Geomatics, Xi'an 710064, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Syst, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Chaodong,Lan, Hengxing,Burgmann, Roland,et al. Application of an improved multi-temporal InSAR method and forward geophysical model to document subsidence and rebound of the Chinese Loess Plateau following land reclamation in the Yan'an New District[J]. REMOTE SENSING OF ENVIRONMENT,2022,279(N/A):17.
APA Zhou, Chaodong.,Lan, Hengxing.,Burgmann, Roland.,Warner, Timothy A..,Clague, John J..,...&Yao, Jiaming.(2022).Application of an improved multi-temporal InSAR method and forward geophysical model to document subsidence and rebound of the Chinese Loess Plateau following land reclamation in the Yan'an New District.REMOTE SENSING OF ENVIRONMENT,279(N/A),17.
MLA Zhou, Chaodong,et al."Application of an improved multi-temporal InSAR method and forward geophysical model to document subsidence and rebound of the Chinese Loess Plateau following land reclamation in the Yan'an New District".REMOTE SENSING OF ENVIRONMENT 279.N/A(2022):17.

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来源：地理科学与资源研究所

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