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    Numerical Modeling of Flood Vulnerability in Urban Catchments for Flood Forecasting

    Access Status
    Fulltext not available
    Authors
    Basnayaka, Amila
    Sarukkalige, Priyantha Ranjan
    Werellagama, I.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Abstract

    This study uses two of numerical modeling approaches to represent the urban catchment, and assess the flood risk of an urban catchment; hydrological surface routing approach and hydraulic 2D surface routing approach. Both approaches were combined with 1D hydraulic stormwater drainage network. XPSWMM was used as the modeling tool. This comparison leads to select most suitable approach to assess the possible flood inundations in the study area. Comparison of results of two approaches shows that the both approaches are suitable to represent urban catchment’s hydrological behavior, but the results of hydrological surface routing are more close to observation data. Model was calibrated to one sub catchment and used to generate flood vulnerability maps for whole catchment. These maps will be used as water sensitive urban design guide lines in the future developments of the area, while structural and non structural measures are to be implemented.

    Citation
    Basnayaka, Amila P. and Sarukkalige, Ranjan and Werellagama, Induka. 2011. Numerical Modeling of Flood Vulnerability in Urban Catchments for Flood Forecasting. International Journal of Environmental Science and Development. 2 (5): pp. 383-387.
    Source Title
    International Journal of Environmental Science and Development
    Additional URLs
    http://www.ijesd.org/show-33-396-1.html
    ISSN
    2010-0264
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/20195
    Collection
    • Curtin Research Publications

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