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Proceedings Paper

Dam-break flood modeling for Tangjiashan Quake Lake
Author(s): Juan Dai; Shihui Zhang; Chongsheng Xue
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Paper Abstract

On May 12th 2008, an 8.0 magnitude earthquake struck in Southwest China, triggered massive landslides and created many unstable and dangerous quake lakes. As a secondary disaster of earthquake, Quake Lake usually breaks after damming up a large amount of water and threatens cities and villages in the downstream area. This paper is devoted to modeling the dam break and analyzing the flow hydrograph coming out of the breach for quake lakes with the BREACH method. We simulate the formation of dam breach and the flood discharge with a case of the Tangjiashan Quake Lake, and analyze the hydraulic impacts of dam-break flood on the downstream areas. The results can facilitate the assessment on the flood risk of quake lake caused by earthquake, and also can be used to estimate the magnitude and extent of dambreak flood with Earth observations.

Paper Details

Date Published: 9 October 2009
PDF: 9 pages
Proc. SPIE 7471, Second International Conference on Earth Observation for Global Changes, 74711D (9 October 2009); doi: 10.1117/12.836313
Show Author Affiliations
Juan Dai, China Univ. of Geosciences (China)
Shihui Zhang, Wuhan Univ. (China)
Chongsheng Xue, China Univ. of Geosciences (China)

Published in SPIE Proceedings Vol. 7471:
Second International Conference on Earth Observation for Global Changes
Xianfeng Zhang; Jonathan Li; Guoxiang Liu; Xiaojun Yang, Editor(s)

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