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http://dx.doi.org/10.3741/JKWRA.2007.40.3.223

GIS-based Urban Flood Inundation Analysis Model Considering Building Effect  

Lee, Chang-Hee (Dept. of Digital City, Seoul Development Institute)
Han, Kun-Yeun (Dept. of Civil Engrg., Kyungpook National Univ.)
Publication Information
Journal of Korea Water Resources Association / v.40, no.3, 2007 , pp. 223-236 More about this Journal
Abstract
Recently in urban area flood damages increase due to local concentrated heavy rainfall. Even in the cities where stormwater drainage systems are relatively well established flood damage still occurs because of the capacity limitations of the existing stormwater drainage systems. When the flood exceeds the capacity limitation of the urban storm sewer system, it yields huge property losses of public facilities involving roadway inundation to paralyze industrial and transportation system of the city. To prevent such flood damages in urban area, it is necessary to develop adequate inundation analysis model which can consider complicated geometry of urban area and artificial drainage system simultaneously. The Dual-Drainage model used in this study is the urban inundation analysis model which combines SWMM with DEM based 2-dimensional surface flood inundation model. In this study, the dual drainage model has been modified to consider the effect of complex buildings in urban area. Through the simulation of time variable inundation process, it is possible to identify inundation alert locations as well as to establish emergency action plan for the residencial area vulnerable to flood inundation.
Keywords
Inundation analysis model; Urban area flood; Effect of complex buildings; SWMM;
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Times Cited By KSCI : 1  (Citation Analysis)
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