Rapid expansion of glacial lakes caused by climate and glacier retreat in the Central Himalayas

	Rapid expansion of glacial lakes caused by climate and glacier retreat in the Central Himalayas
	Wang, Weicai 1; Xiang, Yang 1; Gao, Yang 1; Lu, Anxin 1; Yao, Tandong 1
刊名	HYDROLOGICAL PROCESSES
	2015
卷号	29 期号:6 页码:33-43
关键词	glacial lake glacial lake outburst flood Poiqu River basin Landsat natural hazards
通讯作者	Wang, WC (reprint author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, 16 Lincui Rd, Beijing 100101, Peoples R China.
英文摘要	Glacial lake outburst floods are among the most serious natural hazards in the Himalayas. Such floods are of high scientific and political importance because they exert trans-boundary impacts on bordering countries. The preparation of an updated inventory of glacial lakes and the analysis of their evolution are an important first step in assessment of hazards from glacial lake outbursts. Here, we report the spatiotemporal developments of the glacial lakes in the Poiqu River basin, a trans-boundary basin in the Central Himalayas, from 1976 to 2010 based on multi-temporal Landsat images. Studied glacial lakes are classified as glacier-fed lakes and non-glacier-fed lakes according to their hydrologic connection to glacial watersheds. A total of 119 glacial lakes larger than 0.01km(2) with an overall surface area of 20.22km(2) (+/- 10.8%) were mapped in 2010, with glacier-fed lakes being predominant in both number (69, 58.0%) and area (16.22km(2), 80.2%). We found that lakes connected to glacial watersheds (glacier-fed lakes) significantly expanded (122.1%) from 1976 to 2010, whereas lakes not connected to glacial watersheds (non-glacier-fed lakes) remained stable (+2.8%) during the same period. This contrast can be attributed to the impact of glaciers. Retreating glaciers not only supply meltwater to lakes but also leave space for them to expand. Compared with other regions of the Hindu Kush Himalayas (HKH), the lake area per glacier area in the Poiqu River basin was the highest. This observation might be attributed to the different climate regimes and glacier status along the HKH. The results presented in this study confirm the significant role of glacier retreat on the evolution of glacial lakes. Copyright (c) 2014 John Wiley & Sons, Ltd.
研究领域[WOS]	Water Resources
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000350548100004
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38464]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Wang, Weicai 2.Xiang, Yang 3.Gao, Yang 4.Yao, Tandong] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 5.[Lu, Anxin] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China 6.[Xiang, Yang] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Weicai,Xiang, Yang,Gao, Yang,et al. Rapid expansion of glacial lakes caused by climate and glacier retreat in the Central Himalayas[J]. HYDROLOGICAL PROCESSES,2015,29(6):33-43.
APA	Wang, Weicai,Xiang, Yang,Gao, Yang,Lu, Anxin,&Yao, Tandong.(2015).Rapid expansion of glacial lakes caused by climate and glacier retreat in the Central Himalayas.HYDROLOGICAL PROCESSES,29(6),33-43.
MLA	Wang, Weicai,et al."Rapid expansion of glacial lakes caused by climate and glacier retreat in the Central Himalayas".HYDROLOGICAL PROCESSES 29.6(2015):33-43.