 |
| Titel |
Assessing downstream flood impacts due to a potential GLOF from Imja Tsho in Nepal |
| VerfasserIn |
M. A. Somos-Valenzuela, D. C. McKinney, A. C. Byers, D. R. Rounce, C. Portocarrero, D. Lamsal |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1027-5606
|
| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 19, no. 3 ; Nr. 19, no. 3 (2015-03-13), S.1401-1412 |
| Datensatznummer |
250120660
|
| Publikation (Nr.) |
 copernicus.org/hess-19-1401-2015.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|