气候变化领域集成服务门户(CCPortal): Intra-Annual Ground Surface Deformation Detected by Site Observation, Simulation and InSAR Monitoring in Permafrost Site of Xidatan, Qinghai-Tibet Plateau

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DOI	10.1029/2021GL095029
	Intra-Annual Ground Surface Deformation Detected by Site Observation, Simulation and InSAR Monitoring in Permafrost Site of Xidatan, Qinghai-Tibet Plateau
	Liu, Shibo; Zhao, Lin; Wang, Lingxiao; Zhou, Huayun; Zou, Defu; Sun, Zhe; Xie, Changwei; Qiao, Yongping
通讯作者	Zhao, L (通讯作者)，Univ Chinese Acad Sci, Beijing, Peoples R China. ; Zhao, L ; Wang, LX (通讯作者)，Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China.
发表日期	2022
ISSN	0094-8276
EISSN	1944-8007
卷号	49 期号:3
英文摘要	The permafrost degradation can cause long-term ground surface subsidence, and the surface undergoes frost heave and thaw settlement due to the ice-water phase change in the active layer. The multi-year surveys by leveling observations and Interferometric Synthetic Aperture Radar monitoring (InSAR) are helpful to understand the characteristics of seasonal deformation and to model the permafrost terrain surface deformation. In this paper, we studied the characteristics of seasonal deformation over permafrost terrain in Xidatan, obtained by leveling measurements from 2010 to 2018, Sentinel-1 data from 2014 to 2020, and hydrothermal-data-based simulation. The results consistently showed a four-stage pattern of seasonal deformation characteristics: Summer thaw subsiding, warm-season stable-standing, winter freeze heaving and stable-standing. The leveling measurements proved that spatial heterogeneity also exists on a small spatial scale (400 m(2)). The deformation amplitude obtained by leveling data is the largest, and the InSAR data is the smallest.
关键词	WESTERN-ARCTIC-COAST ACTIVE-LAYER THAW SUBSIDENCE INTERFEROMETRY ISLAND ENVIRONMENTS RADARSAT-2 PINGOS
英文关键词	permafrost; intra-annual deformation; InSAR; leveling measurement; active layer; simulation
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000759485200013
来源期刊	GEOPHYSICAL RESEARCH LETTERS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254799
作者单位	[Liu, Shibo; Zhou, Huayun; Zou, Defu; Xie, Changwei; Qiao, Yongping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou, Peoples R China; [Liu, Shibo; Zhao, Lin; Zhou, Huayun] Univ Chinese Acad Sci, Beijing, Peoples R China; [Zhao, Lin; Wang, Lingxiao] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China; [Sun, Zhe] Nanning Normal Univ, Key Lab Environm Change & Resources Use Beibu Gul, Minist Educ, Nanning, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shibo,Zhao, Lin,Wang, Lingxiao,et al. Intra-Annual Ground Surface Deformation Detected by Site Observation, Simulation and InSAR Monitoring in Permafrost Site of Xidatan, Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2022,49(3).
APA	Liu, Shibo.,Zhao, Lin.,Wang, Lingxiao.,Zhou, Huayun.,Zou, Defu.,...&Qiao, Yongping.(2022).Intra-Annual Ground Surface Deformation Detected by Site Observation, Simulation and InSAR Monitoring in Permafrost Site of Xidatan, Qinghai-Tibet Plateau.GEOPHYSICAL RESEARCH LETTERS,49(3).
MLA	Liu, Shibo,et al."Intra-Annual Ground Surface Deformation Detected by Site Observation, Simulation and InSAR Monitoring in Permafrost Site of Xidatan, Qinghai-Tibet Plateau".GEOPHYSICAL RESEARCH LETTERS 49.3(2022).