Articles | Volume 19, issue 3
https://doi.org/10.5194/hess-19-1401-2015
https://doi.org/10.5194/hess-19-1401-2015
Research article
 | 
13 Mar 2015
Research article |  | 13 Mar 2015

Assessing downstream flood impacts due to a potential GLOF from Imja Tsho in Nepal

M. A. Somos-Valenzuela, D. C. McKinney, A. C. Byers, D. R. Rounce, C. Portocarrero, and D. Lamsal

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Cited articles

Alkema, D. and Middelkoop, H.: The Influence of Floodplain Compartmentalization on Flood Risk within the Rhine-Meuse Delta, Nat. Hazards, 36, 125–145, 2005.
Bajracharya, B. and Uddin, K.: Study of Land Cover Dynamics in Sagarmatha National Park and Buffer Zone, 10th Int. Symp. High Mt. Remote Sens. Cartogr. (Kathmandu, Nepal, 12–19 September 2008), 125–132, 2010.
Bajracharya, S. R., Mool, P. K., and Shrestha, B. R.: Impact of Climate Change on Himalayan Glaciers and Glacial Lakes Case Studies on GLOF and Associated Hazards in Nepal and Bhutan, International Centre for Integrated Mountain Development (ICIMOD), Kathmandu, 2007a.
Bajracharya, B., Shrestha, A. B., and Rajbhandari, L.: Glacial lake outburst floods in the Sagartmatha regions: hazard assessment using GIS and hydrological modeling, Mountain Res. Develop., 27, 336–344, 2007b.
Bolch, T., Buchroithner, M. F., Peters, J., Baessler, M., and Bajracharya, S.: Identification of glacier motion and potentially dangerous glacial lakes in the Mt. Everest region/Nepal using spaceborne imagery, Nat. Hazards Earth Syst. Sci., 8, 1329–1340, https://doi.org/10.5194/nhess-8-1329-2008, 2008.
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Short summary
The potential flooding impacts from Imja glacial lake in Nepal were studied using a two-dimensional debris-flow model 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 a minor benefits is achieved with modest (~3m) lowering and lowering of 20m almost eliminates all flood impact at Dingboche.