气候变化领域集成服务门户(CCPortal): Ground Deformation and Permafrost Degradation in the Source Region of the Yellow River, in the Northeast of the Qinghai-Tibet Plateau

CCPortal

DOI	10.3390/rs15123153
	Ground Deformation and Permafrost Degradation in the Source Region of the Yellow River, in the Northeast of the Qinghai-Tibet Plateau
	Li, Chengye; Zhao, Lin; Wang, Lingxiao; Liu, Shibo; Zhou, Huayun; Li, Zhibin; Liu, Guangyue; Du, Erji; Zou, Defu; Hou, Yingxu
发表日期	2023
EISSN	2072-4292
卷号	15 期号:12
英文摘要	The source region of the Yellow River (SRYR) is situated on the permafrost boundary in the northeast of the Qinghai-Tibet Plateau (QTP), which is an area highly sensitive to climate change. As a result of increasing global temperatures, the permafrost in this region has undergone significant degradation. In this study, we utilized Sentinel-1 to obtain ground surface deformation data in the SRYR from June 2017 to January 2022. We then analyzed the differences in terrain deformation under various environmental conditions. Our findings indicated an overall subsidence trend in the SRYR, with a long-term deformation velocity of -4.2 mm/a and seasonal deformation of 8.85 mm. Furthermore, the results showed that terrain deformation varied considerably from region to region, and that the Huanghe' yan sub-basin with the highest permafrost coverage among all sub-basins significantly higher subsidence rates than other regions. Topography strongly influenced ground surface deformation, with flat slopes exhibiting much higher subsidence rates and seasonal deformation. Moreover, the ground temperature and ground ice richness played a certain role in the deformation pattern. This study also analyzed regional deformation details from eight boreholes and one profile line covering different surface conditions, revealing the potential for refining the permafrost boundary. Overall, the results of this study provide valuable insights into the evolution of permafrost in the SRYR region.
关键词	permafrost ground surface deformation SBAS-InSAR source region of the Yellow River (SRYR)
英文关键词	SAR INTERFEROMETRY; INSAR; DYNAMICS; PATTERNS; CLIMATE; MAP
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001016023100001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283112
作者单位	Nanjing University of Information Science & Technology; Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Li, Chengye,Zhao, Lin,Wang, Lingxiao,et al. Ground Deformation and Permafrost Degradation in the Source Region of the Yellow River, in the Northeast of the Qinghai-Tibet Plateau[J],2023,15(12).
APA	Li, Chengye.,Zhao, Lin.,Wang, Lingxiao.,Liu, Shibo.,Zhou, Huayun.,...&Hou, Yingxu.(2023).Ground Deformation and Permafrost Degradation in the Source Region of the Yellow River, in the Northeast of the Qinghai-Tibet Plateau.REMOTE SENSING,15(12).
MLA	Li, Chengye,et al."Ground Deformation and Permafrost Degradation in the Source Region of the Yellow River, in the Northeast of the Qinghai-Tibet Plateau".REMOTE SENSING 15.12(2023).