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Publisher DOI: 10.3390/w12123566
Title: Modelling of flood inundation due to levee breaches : sensitivity of flood inundation against breach process parameters
Language: English
Authors: Birhanu Tadesse, Yohannis 
Fröhle, Peter 
Keywords: levee breach;levee breach model parameters;flood modelling;Telemac-2D
Issue Date: 18-Dec-2020
Publisher: Multidisciplinary Digital Publishing Institute
Source: Water 12 (12): 3566 (2020)
Journal or Series Name: Water 
Abstract (english): 
This paper analyses the sensitivity of flood inundation due to river levee breach against breach process parameters using the 1996 Awash River levee breach case at Wonji, Ethiopia. A parametric levee breach model integrated into the 2D hydrodynamic numerical model Telemac-2D is used to simulate a levee breach flood event at Wonji, Ethiopia. Levee breach process parameters are systemically varied to find out their effect on the flood inundation. The analysis of the model results shows that the flood inundation is sensitive to the final breach dimensions and breach location. However, the parameters describing the levee breach development have negligible influence on the flood inundation. This implies that final breach dimension and breach location in an event of levee breach are the most important and decisive parameters affecting the resulting inundation of the flood plain, and as such should be given due consideration when creating flood inundation maps due to levee breach.
DOI: 10.15480/882.3227
ISSN: 2073-4441
Other Identifiers: doi: 10.3390/w12123566
Institute: Wasserbau B-10 
Document Type: Article
Funded by: Deutschland, Bundesministerium für Bildung und Forschung
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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