气候变化领域集成服务门户(CCPortal): Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor

CCPortal

DOI	10.3390/rs16040725
	Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor
	Zhang, Sihui; Nie, Yong; Zhang, Huayu
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	4
卷号	16 期号:4
英文摘要	Glacial lake outburst floods (GLOFs) are one of the most severe disasters in alpine regions, releasing a large amount of water and sediment that can cause fatalities and economic loss as well as substantial damage to downstream infrastructures. The risk of GLOFs in the Himalayas is exacerbated by glacier retreat caused by global warming. Critical economic corridors, such as the Rongxer Watershed, are threatened by GLOFs, but the lack of risk assessment specific to the watershed hinders hazard prevention. In this study, we propose a novel model to evaluate the risk of GLOF using a combination of remote sensing observations, GIS, and hydrological models and apply this model to the GLOF risk assessment in the Rongxer Watershed. The results show that (1) the area of glacial lakes in the Rongxer Watershed increased by 31.19% from 11.35 km2 in 1990 to 14.89 km2 in 2020, and (2) 18 lakes were identified as potentially dangerous glacial lakes (PDGLs) that need to be assessed for the GLOF risk, and two of them were categorized as very high risk (Niangzongmajue and Tsho Rolpa). The proposed model was robust in a GLOF risk evaluation by historical GLOFs in the Himalayas. The glacial lake data and GLOF risk assessment model of this study have the potential to be widely used in research on the relationships between glacial lakes and climate change, as well as in disaster mitigation of GLOFs.
英文关键词	remote sensing; glacial lake outburst floods (GLOFs); potentially dangerous glacial lakes (PDGLs); GLOF risk assessment; Central Himalayas
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001172251500001
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/289657
作者单位	Chinese Academy of Sciences; Institute of Mountain Hazards & Environment, CAS; Sichuan Normal University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zhang, Sihui,Nie, Yong,Zhang, Huayu. Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor[J],2024,16(4).
APA	Zhang, Sihui,Nie, Yong,&Zhang, Huayu.(2024).Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor.REMOTE SENSING,16(4).
MLA	Zhang, Sihui,et al."Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor".REMOTE SENSING 16.4(2024).