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Article

Modelling of Flood Inundation due to Levee Breaches: Sensitivity of Flood Inundation against Breach Process Parameters

Institute of River and Coastal Engineering, Hamburg University of Technology, 21073 Hamburg, Germany
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Water 2020, 12(12), 3566; https://doi.org/10.3390/w12123566
Received: 11 November 2020 / Revised: 11 December 2020 / Accepted: 15 December 2020 / Published: 18 December 2020
(This article belongs to the Section Hydraulics and Hydrodynamics)
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. View Full-Text
Keywords: levee breach; levee breach model parameters; flood modelling; Telemac-2D levee breach; levee breach model parameters; flood modelling; Telemac-2D
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MDPI and ACS Style

Tadesse, Y.B.; Fröhle, P. Modelling of Flood Inundation due to Levee Breaches: Sensitivity of Flood Inundation against Breach Process Parameters. Water 2020, 12, 3566. https://doi.org/10.3390/w12123566

AMA Style

Tadesse YB, Fröhle P. Modelling of Flood Inundation due to Levee Breaches: Sensitivity of Flood Inundation against Breach Process Parameters. Water. 2020; 12(12):3566. https://doi.org/10.3390/w12123566

Chicago/Turabian Style

Tadesse, Yohannis B., and Peter Fröhle. 2020. "Modelling of Flood Inundation due to Levee Breaches: Sensitivity of Flood Inundation against Breach Process Parameters" Water 12, no. 12: 3566. https://doi.org/10.3390/w12123566

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