气候变化领域集成服务门户(CCPortal): Rapid changes to glaciers increased the outburst flood risk in Guangxieco Proglacial Lake in the Kangri Karpo Mountains, Southeast Qinghai-Tibetan Plateau

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DOI	10.1007/s11069-021-05029-5
	Rapid changes to glaciers increased the outburst flood risk in Guangxieco Proglacial Lake in the Kangri Karpo Mountains, Southeast Qinghai-Tibetan Plateau
	Che, Yanjun; Wang, Shijin; Wei, Yanqiang; Pu, Tao; Ma, Xinggang
通讯作者	Che, YJ ; Wang, SJ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Yulong Snow Mt Glacier & Environm Observat & Res, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China. ; Che, YJ (通讯作者)，Yichun Univ, Dept Geog Sci, Yichun 336000, Peoples R China. ; Che, YJ (通讯作者)，Nanchang Base Int Ctr Space Technol Nat & Cultura, Nanchang 330000, Jiangxi, Peoples R China. ; Che, YJ (通讯作者)，Jiangxi Normal Univ, Key Lab Poyang Lake Wetland & Watershed Res, Minist Educ, Nanchang 330000, Jiangxi, Peoples R China.
发表日期	2020
ISSN	0921-030X
EISSN	1573-0840
英文摘要	The Kangri Karpo Mountain Range on the Qinghai-Tibet Plateau frequently experiences glacial lake outburst floods (GLOFs). This study assessed the risk of outburst floods for Guangxieco Proglacial Lake (GPL) in this Mountain Range as a typical case to reveal the effects of rapid glacial change. The area of Gongzo Glacier behind GPL decreased by 7.39 +/- 0.10% from 1987 to 2019, while this glacier advanced by 32.45 m from 5 June to 27 October in 1988. Guangxieco Proglacial Lake decreased from 0.42 +/- 0.03 km(2) in 1987 to 0.19 +/- 0.03 km(2) in 1988 and then continuously expanded to 0.43 +/- 0.04 km(2) in 2019. Heavy precipitation occurred before 15 July 1988, when no supraglacial lake existed. Meanwhile, sustained abnormally high air temperature caused accelerated glacier and snow melting. Since 1988, a larger volume of rainfall and meltwater impounded by the ice wall caused an increase in the basal water pressure in the glacier. A significant increase in winter mass balance has caused a further increase in the downward gravity component of glacier sliding. As a result, the glacier advanced rapidly while reopening previously blocked subglacial drainage systems. The accumulating subglacial water rapidly drained into the Proglacial Lake causing an elevated lake level and a GLOF event. However, the current area of the glacial lake has recovered to the scale present before the outburst in 1988. Therefore, local government agencies and the local community should improve early warning systems and take measures designed to prevent a new GLOF and to minimize the risk of a recurrence of a GPL outburst.
关键词	MORAINE-DAMMED LAKES CLIMATE-CHANGE MASS-BALANCE INVENTORY ELEVATION KARAKORAM BEHAVIOR REGION COVER ANDES
英文关键词	GLOF; Glacier surge; Guangxueco Proglacial Lake; Qinghai-Tibetan Plateau
语种	英语
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS记录号	WOS:000756600700001
来源期刊	NATURAL HAZARDS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254334
作者单位	[Che, Yanjun; Wang, Shijin; Wei, Yanqiang; Pu, Tao; Ma, Xinggang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Yulong Snow Mt Glacier & Environm Observat & Res, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Che, Yanjun] Yichun Univ, Dept Geog Sci, Yichun 336000, Peoples R China; [Che, Yanjun] Nanchang Base Int Ctr Space Technol Nat & Cultura, Nanchang 330000, Jiangxi, Peoples R China; [Che, Yanjun] Jiangxi Normal Univ, Key Lab Poyang Lake Wetland & Watershed Res, Minist Educ, Nanchang 330000, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Che, Yanjun,Wang, Shijin,Wei, Yanqiang,et al. Rapid changes to glaciers increased the outburst flood risk in Guangxieco Proglacial Lake in the Kangri Karpo Mountains, Southeast Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Che, Yanjun,Wang, Shijin,Wei, Yanqiang,Pu, Tao,&Ma, Xinggang.(2020).Rapid changes to glaciers increased the outburst flood risk in Guangxieco Proglacial Lake in the Kangri Karpo Mountains, Southeast Qinghai-Tibetan Plateau.NATURAL HAZARDS.
MLA	Che, Yanjun,et al."Rapid changes to glaciers increased the outburst flood risk in Guangxieco Proglacial Lake in the Kangri Karpo Mountains, Southeast Qinghai-Tibetan Plateau".NATURAL HAZARDS (2020).