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	Quick Release of Internal Water Storage in a Glacier Leads to Underestimation of the Hazard Potential of Glacial Lake Outburst Floods From Lake Merzbacher in Central Tian Shan Mountains
	Shangguan, Donghui1,2; Ding, Yongjian1,3; Liu, Shiyin4; Xie, Zunyi5; Pieczonka, Tino6; Xu, Junli1,7; Moldobekov, Bolot8
刊名	GEOPHYSICAL RESEARCH LETTERS
	2017-10-16
卷号	44期号:19页码:9786-9795
关键词	Lake Merzbacher glacial lake outburst flood water supply Tian Shan Mountains jokulhlaup
ISSN号	0094-8276
DOI	10.1002/2017GL074443
通讯作者	Ding, Yongjian(dyj@lzb.ac.cn)
英文摘要	Glacial meltwater and ice calving contribute to the flood volume of glacial lakes such as Lake Merzbacher in the Tian Shan Mountains of central Asia. In this study, we simulated the lake's volume by constructing an empirical relationship between the area of Lake Merzbacher, determined from satellite images, and the lake's water storage, derived from digital elevation models. Results showed that the lake water supply rate before Glacial Lake Outburst Floods (GLOFs) generally agreed well with those during the GLOFs from 2009 to 2012 but not in 2008 and 2015. Furthermore, we found that the combination of glacial meltwater and ice calving is not enough to fully explain the supply rate during GLOFs in 1996 and 1999, suggesting other factors affect the supply rate during GLOFs as well. To examine this further, we compared the water supply rate before and during GLOF events in 1999 and 2008. We inferred that quickly released short-term and intermediate-term water storage by glaciers have likely contributed to both flood events in those years. This study highlights the need to improve our understanding of the supply component of outburst floods, such as irregularly released stored water may lead to GLOF events with generally three different types: case I (singular event-triggered englacial water release), case II (glacier melt due to temperature changes), and case III (englacial water release mixed with glacier melt). Plain Language Summary Glacial lake outburst is one of natural hazards related to glaciers. The glacier lake outburst flood (GLOF) of Merzbacher which almost occurs every year threatens lives, livelihoods, and infrastructure both in the mountains and downstream, posing myriad challenges for the communities. The regional warming leads to the increasing to supply for the Lake Merzbacher from Inylchek glacier. Importantly, quickly released intermediate- and short-term water storage by glaciers probably contributed to floods, which increase flood volume and lead to severe risk on the downstream socioeconomy.
收录类别	SCI
WOS关键词	CENTRAL TIEN-SHAN ; NORTHERN INYLCHEK GLACIER ; RIVER-BASIN ; CENTRAL-ASIA ; KYRGYZSTAN ; VOLUME ; DISCHARGE ; PREDICTABILITY ; JOKULHLAUPS ; PREDICTION
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000413921300031
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558022
专题	寒区旱区环境与工程研究所
通讯作者	Ding, Yongjian
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China 2.Univ Zurich, Dept Geog, Zurich, Switzerland 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming, Yunnan, Peoples R China 5.Univ Queensland, Sch Earth & Environm Sci, Ctr Biodivers & Conservat Sci, St Lucia, Qld, Australia 6.Tech Univ Dresden, Inst Cartog, Dresden, Germany 7.Yancheng Teachers Univ, Surveying & Mapping Dept, Yancheng, Peoples R China 8.Cent Asia Inst Appl Geosci, Bishkek, Kyrgyzstan
推荐引用方式 GB/T 7714	Shangguan, Donghui,Ding, Yongjian,Liu, Shiyin,et al. Quick Release of Internal Water Storage in a Glacier Leads to Underestimation of the Hazard Potential of Glacial Lake Outburst Floods From Lake Merzbacher in Central Tian Shan Mountains[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19):9786-9795.
APA	Shangguan, Donghui.,Ding, Yongjian.,Liu, Shiyin.,Xie, Zunyi.,Pieczonka, Tino.,...&Moldobekov, Bolot.(2017).Quick Release of Internal Water Storage in a Glacier Leads to Underestimation of the Hazard Potential of Glacial Lake Outburst Floods From Lake Merzbacher in Central Tian Shan Mountains.GEOPHYSICAL RESEARCH LETTERS,44(19),9786-9795.
MLA	Shangguan, Donghui,et al."Quick Release of Internal Water Storage in a Glacier Leads to Underestimation of the Hazard Potential of Glacial Lake Outburst Floods From Lake Merzbacher in Central Tian Shan Mountains".GEOPHYSICAL RESEARCH LETTERS 44.19(2017):9786-9795.

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