DOI: 10.5194/hess-19-1401-2015
Scopus记录号: 2-s2.0-84924767286
论文题名: Assessing downstream flood impacts due to a potential GLOF from Imja Tsho in Nepal
作者: Somos-Valenzuela M ; A ; , McKinney D ; C ; , Byers A ; C ; , Rounce D ; R ; , Portocarrero C ; , Lamsal D
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 3 起始页码: 1401
结束页码: 1412
语种: 英语
Scopus关键词: Climate change
; Glacial geology
; Lakes
; Debris flows
; Economic system
; Glacial lake outburst flood (GLOFs)
; Glacial lakes
; Global climate changes
; Impact reduction
; Inundation modeling
; Lake levels
; Floods
; climate change
; debris flow
; flooding
; glacial lake
; global climate
; lake level
; outburst
; Imja Tsho
; Nepal
英文摘要: Glacial-dominated areas pose unique challenges to downstream communities in adapting to recent and continuing global climate change, including increased threats of glacial lake outburst floods (GLOFs) that can increase risk due to flooding of downstream communities and cause substantial impacts on regional social, environmental and economic systems. The Imja glacial lake (or Imja Tsho) in Nepal, which has the potential to generate a GLOF, was studied using a two-dimensional debris-flow inundation model in order to evaluate the effectiveness of proposed measures to reduce possible flooding impacts to downstream communities by lowering the lake level. The results indicate that only minor flood impact reduction is achieved in the downstream community of Dingboche with modest (∼3 m) lake lowering. Lowering the lake by 10 m shows a significant reduction in inundated area. However, lowering the lake by 20 m almost eliminates all flood impact at Dingboche. Further downstream at Phakding, the impact of the GLOF is significant and similar reductions in inundation are likely as a result of lake lowering. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78573
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Research in Water Resources, University of Texas at Austin, Austin, TX, United States; Mountain Institute, Washington, DC, United States; Independent Consultant, Huaraz, Peru; Graduate School of Environmental Studies, Nagoya University, Japan
Recommended Citation:
Somos-Valenzuela M,A,, McKinney D,et al. Assessing downstream flood impacts due to a potential GLOF from Imja Tsho in Nepal[J]. Hydrology and Earth System Sciences,2015-01-01,19(3)