Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor | |
Zhang, Sihui2,3; Nie, Yong1,3; Zhang, Huayu1,3 | |
刊名 | REMOTE SENSING |
2024-02-01 | |
卷号 | 16期号:4页码:19 |
关键词 | remote sensing glacial lake outburst floods (GLOFs) potentially dangerous glacial lakes (PDGLs) GLOF risk assessment Central Himalayas |
ISSN号 | 2072-4292 |
DOI | 10.3390/rs16040725 |
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. |
资助项目 | Science and Technology Department of Tibet[XZ202301ZY0016G] ; National Natural Science Foundation of China[41971153] ; National Natural Science Foundation of China[42171086] |
WOS关键词 | MORAINE-DAMMED LAKES ; OUTBURST FLOOD RISK ; HAZARD ASSESSMENT ; ASSESSMENT FRAMEWORK ; CLIMATE-CHANGE ; INVENTORY ; HIMALAYA ; REGION ; GIS ; EVOLUTION |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:001172251500001 |
资助机构 | Science and Technology Department of Tibet ; National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/57903] |
专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
通讯作者 | Nie, Yong |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 2.Sichuan Normal Univ, Fac Geog Resource Sci, Chengdu 610101, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Mt Sci Data Ctr, Chengdu 610299, Peoples R China |
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]. REMOTE SENSING,2024,16(4):19. |
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),19. |
MLA | Zhang, Sihui,et al."Glacial Lake Changes and Risk Assessment in Rongxer Watershed of China-Nepal Economic Corridor".REMOTE SENSING 16.4(2024):19. |
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