Urban Flood Risk Assessment Using GIS Shirish Based Hydraulic Modelling
Published: 2010
Author(s) Name: S. Gokhale, A. Tamhankar, M. Pimputkar, S. Kenney, K. C Khare, S.N. Londhe
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Abstract
Amongst the various techniques available for assessing flood risk, the ones using Geographical Information
System (GIS) are most promising. GIS is used to construct and update hydraulic models which are capable of
predicting one dimensional and two dimensional flooding. The paper evaluates a flood risk tool which uses two
methods of risk assessment - backing up from connecting sewers and surface overland flow. Overland flows
can be assessed in two ways - using a rolling ball technique and using two dimensional surface flow data from
hydraulic simulation software. The paper concludes that Flood Risk Tool which uses both the above methods is useful in understanding flood risk.
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