Articles | Volume 22, issue 7
https://doi.org/10.5194/hess-22-3721-2018
https://doi.org/10.5194/hess-22-3721-2018
Research article
 | 
13 Jul 2018
Research article |  | 13 Jul 2018

Modeling the glacial lake outburst flood process chain in the Nepal Himalaya: reassessing Imja Tsho's hazard

Jonathan M. Lala, David R. Rounce, and Daene C. McKinney

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Cited articles

Alean, J.: Ice avalanches: Some empirical information about their formation and reach, J. Glaciol., 31, 324–333, 1985.
ASTM Standard D422, 2007e2: Standard test method for particle-size analysis of soils, ASTM International, West Conshohocken, PA, available at: www.astm.org (last access: 22 May 2017), 2007.
ASTM Standard D7263-09: Standard test methods for laboratory determination of density (unit weight) of soil specimens, ASTM International, West Conshohocken, PA, available at: www.astm.org (last access: 22 May 2017), 2009.
Bajracharya, B., Shrestha, A. B., and Rajbhandari, L.: Glacial lake outburst floods in the Sagarmatha region: Hazard assessment using GIS and hydrodynamic modelling, Mt. Res. Dev., 27, 336–344, 2007.
Bartelt, P., Buehler, Y., Christen, M., Deubelbeiss, Y., Graf, C., McArdell, B., Sals, M., and Schneider, M.: RAMMS: Rapid Mass Movement Simulation: A numerical model for debris flows in research and practice, User Manual v1.5 – Debris Flow, Swiss Institute for Snow and Avalanche Research SLF, Birmensdorf, 2013.
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Short summary
Many glacial lakes in the Himalayas are held in place by natural sediment dams, which are prone to collapse, causing a glacial lake outburst flood (GLOF). This study models a GLOF as a process chain, in which an avalanche enters the lake, creates a large wave that erodes the sediment dam, and produces a flood downstream. Results indicate that Imja Tsho presents little hazard for the next 30 years, but the model is replicable and should be used at other lakes that may present greater hazard.
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