干旱区生态环境知识资源中心(Arid): Small-Baseline Approach for Monitoring the Freezing and Thawing Deformation of Permafrost on the Beiluhe Basin, Tibetan Plateau Using TerraSAR-X and Sentinel-1 Data

Arid

DOI	10.3390/s20164464
	Small-Baseline Approach for Monitoring the Freezing and Thawing Deformation of Permafrost on the Beiluhe Basin, Tibetan Plateau Using TerraSAR-X and Sentinel-1 Data
	Wang, Jing; Wang, Chao; Zhang, Hong; Tang, Yixian; Zhang, Xuefei; Zhang, Zhengjia
通讯作者	Wang, C
来源期刊	SENSORS
EISSN	1424-8220
出版年	2020
卷号	20 期号:16
英文摘要	The dynamic changes of the thawing and freezing processes of the active layer cause seasonal subsidence and uplift over a large area on the Qinghai-Tibet Plateau due to ongoing climate warming. To analyze and investigate the seasonal freeze-thaw process of the active layer, we employ the new small baseline subset (NSBAS) technique based on a piecewise displacement model, including seasonal deformation, as well as linear and residual deformation trends, to retrieve the surface deformation of the Beiluhe basin. We collect 35 Sentinel-1 images with a 12 days revisit time and 9 TerraSAR-X images with less-than two month revisit time from 2018 to 2019 to analyze the type of the amplitude of seasonal oscillation of different ground targets on the Beiluhe basin in detail. The Sentinel-1 results show that the amplitude of seasonal deformation is between -62.50 mm and 11.50 mm, and the linear deformation rate ranges from -24.50 mm/yr to 5.00 mm/yr (2018-2019) in the study area. The deformation trends in the Qinghai-Tibet Railway (QTR) and Qinghai-Tibet Highway (QTH) regions are stable, ranging from -18.00 mm to 6 mm. The InSAR results of Sentinel-1 and TerraSAR-X data show that seasonal deformation trends are consistent, exhibiting good correlations 0.78 and 0.84, and the seasonal and linear deformation rates of different ground targets are clearly different on the Beiluhe basin. Additionally, there are different time lags between the maximum freezing uplift or thawing subsidence and the maximum or minimum temperature for the different ground target areas. The deformation values of the alpine meadow and floodplain areas are higher compared with the alpine desert and barren areas, and the time lags of the freezing and thawing periods based on the Sentinel-1 results are longest in the alpine desert area, that is, 86 days and 65 days, respectively. Our research has important reference significance for the seasonal dynamic monitoring of different types of seasonal deformation and the extensive investigations of permafrost in Qinghai Tibet Plateau.
英文关键词	Qinghai-Tibet the active layer NSBAS freeze-thaw cycles seasonal deformation
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000565530800001
WOS关键词	GROUND-PENETRATING RADAR ; ACTIVE-LAYER THICKNESS ; INTERFEROMETRY ; CLIMATE ; SCATTERERS ; RESOLUTION ; MAP
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326000
作者单位	[Wang, Jing; Wang, Chao; Zhang, Hong; Tang, Yixian; Zhang, Xuefei] Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China; [Wang, Jing; Wang, Chao; Zhang, Xuefei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhang, Zhengjia] China Univ Geosci, Fac Informat Engn, 388 Lumo Rd, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Wang, Chao,Zhang, Hong,et al. Small-Baseline Approach for Monitoring the Freezing and Thawing Deformation of Permafrost on the Beiluhe Basin, Tibetan Plateau Using TerraSAR-X and Sentinel-1 Data[J],2020,20(16).
APA	Wang, Jing,Wang, Chao,Zhang, Hong,Tang, Yixian,Zhang, Xuefei,&Zhang, Zhengjia.(2020).Small-Baseline Approach for Monitoring the Freezing and Thawing Deformation of Permafrost on the Beiluhe Basin, Tibetan Plateau Using TerraSAR-X and Sentinel-1 Data.SENSORS,20(16).
MLA	Wang, Jing,et al."Small-Baseline Approach for Monitoring the Freezing and Thawing Deformation of Permafrost on the Beiluhe Basin, Tibetan Plateau Using TerraSAR-X and Sentinel-1 Data".SENSORS 20.16(2020).