气候变化领域集成服务门户(CCPortal): Evaluation of Glacial Lake Outburst Flood Susceptibility Using Multi-Criteria Assessment Framework in Mahalangur Himalaya

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DOI	10.3389/feart.2020.601288
	Evaluation of Glacial Lake Outburst Flood Susceptibility Using Multi-Criteria Assessment Framework in Mahalangur Himalaya
	Khadka, Nitesh; Chen, Xiaoqing; Nie, Yong; Thakuri, Sudeep; Zheng, Guoxiong; Zhang, Guoqing
通讯作者	Chen, XQ (通讯作者)
发表日期	2021
EISSN	2296-6463
卷号	8
英文摘要	Ongoing recession of glaciers in the Himalaya in response to global climate change has far-reaching impacts on the formation and expansion of glacial lakes. The subsequent glacial lake outburst floods (GLOFs) are a significant threat to lives and livelihoods as they can cause catastrophic damage up to hundreds of kilometres downstream. Previous studies have reported the rapid expansion of glacial lakes and several notable destructive past GLOF events in the Mahalangur Himalaya, suggesting a necessity of timely and updated GLOF susceptibility assessment. Here, an updated inventory of glacial lakes across the Mahalangur Himalaya is developed based on 10-m Sentinel-2 satellite data from 2018. Additionally, the GLOF susceptibilities of glacial lakes (>= 0.045 km(2)) are evaluated using a multi-criteria-based assessment framework where six key factors are selected and analyzed. Weight for each factor was assigned from the analytical hierarchy process. Glacial lakes are classified into very low, low, medium, high, and very high GLOF susceptibility classes depending upon their susceptibility index based on analysis of three historical GLOF events in the study area. The result shows the existence of 345 glacial lakes (>0.001 km(2)) with a total area of 18.80 +/- 1.35 km(2) across the region in 2018. Furthermore, out of the 64 glacial lakes (>= 0.045 km(2)) assessed, seven were identified with very high GLOF susceptibility. We underline that pronounced glacier-lake interaction will likely increase the GLOF susceptibility. Regular monitoring and more detailed fieldworks for these highly susceptible glacial lakes are necessary. This will benefit in early warning and disaster risk reduction of downstream communities.
关键词	MORAINE-DAMMED LAKES INVENTORY REGION
英文关键词	glacial lake outburst flood; susceptibility; analytical hierarchy process; Sentinel-2; Mahalangur Himalaya
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000617168800001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260308
推荐引用方式 GB/T 7714	Khadka, Nitesh,Chen, Xiaoqing,Nie, Yong,et al. Evaluation of Glacial Lake Outburst Flood Susceptibility Using Multi-Criteria Assessment Framework in Mahalangur Himalaya[J]. 中国科学院青藏高原研究所,2021,8.
APA	Khadka, Nitesh,Chen, Xiaoqing,Nie, Yong,Thakuri, Sudeep,Zheng, Guoxiong,&Zhang, Guoqing.(2021).Evaluation of Glacial Lake Outburst Flood Susceptibility Using Multi-Criteria Assessment Framework in Mahalangur Himalaya.FRONTIERS IN EARTH SCIENCE,8.
MLA	Khadka, Nitesh,et al."Evaluation of Glacial Lake Outburst Flood Susceptibility Using Multi-Criteria Assessment Framework in Mahalangur Himalaya".FRONTIERS IN EARTH SCIENCE 8(2021).