干旱区生态环境知识资源中心(Arid): Time-Series InSAR Monitoring of Permafrost Freeze-Thaw Seasonal Displacement over Qinghai-Tibetan Plateau Using Sentinel-1 Data

Arid

DOI	10.3390/rs11091000
	Time-Series InSAR Monitoring of Permafrost Freeze-Thaw Seasonal Displacement over Qinghai-Tibetan Plateau Using Sentinel-1 Data
	Zhang, Xuefei 1,2; Zhang, Hong 1; Wang, Chao 1,2; Tang, Yixian 1; Zhang, Bo 1; Wu, Fan 1; Wang, Jing 1,2; Zhang, Zhengjia 3
通讯作者	Zhang, Hong
来源期刊	REMOTE SENSING
ISSN	2072-4292
出版年	2019
卷号	11 期号:9
英文摘要	Permafrost is widely distributed in the Tibetan Plateau. Seasonal freeze-thaw cycles of permafrost result in upward and downward surface displacement. Multitemporal interferometric synthetic aperture radar (MT-InSAR) observations provide an effective method for monitoring permafrost displacement under difficult terrain and climatic conditions. In this study, a seasonal sinusoidal model-based new small baselines subset (NSBAS) chain was adopted to obtain a deformation time series. An experimental study was carried out using 33 scenes of Sentinel-1 data (S-1) from 28 November 2017 to 29 December 2018 with frequent revisit (12 days) observations. The spatial and temporal characteristics of the surface displacements variation combined with different types of surface land cover, elevation and surface temperature factors were analyzed. The results revealed that the seasonal changes observed in the time series of ground movements, induced by freeze-thaw cycles were observed on flat surfaces of sedimentary basins and mountainous areas with gentle slopes. The estimated seasonal oscillations ranged from 2 mm to 30 mm, which were smaller in Alpine deserts than in Alpine meadows. In particular, there were significant systematic differences in seasonal surface deformation between areas near mountains and sedimentary basins. It was also found that the time series of deformation was consistent with the variation of surface temperature. Based on soil moisture active/passive (SMAP) L4 surface and root zone soil moisture data, the deformation analysis influenced by soil moisture factors was also carried out. The comprehensive analysis of deformation results and auxiliary data (elevation, soil moisture and surface temperature et al.) provides important insights for the monitoring of the seasonal freeze-thaw cycles in the Tibetan Plateau.
英文关键词	Tibetan Plateau MT-InSAR NSBAS seasonal displacements
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000469763600008
WOS关键词	TERRASAR-X ; GROUND DISPLACEMENT ; SAR INTERFEROMETRY ; DEFORMATION ; RADARSAT-2 ; SITE ; SCATTERERS ; REGIONS ; ISLAND
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218365
作者单位	1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.China Univ Geosci, Fac Informat Engn, 388 Lumo Rd, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xuefei,Zhang, Hong,Wang, Chao,et al. Time-Series InSAR Monitoring of Permafrost Freeze-Thaw Seasonal Displacement over Qinghai-Tibetan Plateau Using Sentinel-1 Data[J],2019,11(9).
APA	Zhang, Xuefei.,Zhang, Hong.,Wang, Chao.,Tang, Yixian.,Zhang, Bo.,...&Zhang, Zhengjia.(2019).Time-Series InSAR Monitoring of Permafrost Freeze-Thaw Seasonal Displacement over Qinghai-Tibetan Plateau Using Sentinel-1 Data.REMOTE SENSING,11(9).
MLA	Zhang, Xuefei,et al."Time-Series InSAR Monitoring of Permafrost Freeze-Thaw Seasonal Displacement over Qinghai-Tibetan Plateau Using Sentinel-1 Data".REMOTE SENSING 11.9(2019).