Flood hazard assessment with multiparameter approach derived from coupled 1D and 2D hydrodynamic flow model

Pankaj Mani, Chandranath Chatterjee () and Rakesh Kumar

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2014, vol. 70, issue 2, 1553-1574

Abstract: Hydrodynamic flow modeling is carried out using a coupled 1D and 2D hydrodynamic flow model in northern India where an industrial plant is proposed. Two flooding scenarios, one considering the flooding source at regional/catchment level and another considering all flooding sources at local level have been simulated. For simulating flooding scenario due to flooding of the upstream catchment, the probable maximum flood (PMF) in the main river is routed and its flooding impact at the plant site is studied, while at the local level flooding, in addition to PMF in the main river, the probable maximum precipitation at the plant site and breaches in the canals near the plant site have been considered. The flood extent, depth, level, duration and maximum flow velocity have been computed. Three parameters namely the flood depth, cross product of flood depth and velocity and flood duration have been used for assessing the flood hazard, and a flood hazard classification scheme has been proposed. Flood hazard assessment for flooding due to upstream catchment and study on local scale facilitates determination of plinth level for the plant site and helps in identifying the flood protection measures. Copyright Springer Science+Business Media Dordrecht 2014

Keywords: Canal breach; Flood depth; Flood velocity; Flood duration; Flood hazard; Hazard classification scheme; Coupled 1D and 2D hydrodynamic flow model (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11069-013-0891-8

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