期刊名称：European Journal of Business and Social Sciences
印刷版ISSN：2235-767X
出版年度：2017
卷号：6
期号：1
页码：57-76
出版社：European Society of Business and Social Sciences
摘要：Water resources are increasingly a constraint on economic and socialdevelopment in Egypt. Coping with the water scarcity in the NorthWestern Coastal zone Basins (NWCB) requires good management forthe flash floods. This requires an accurate estimation for the hazarddegrees and flood risk. Multi Criteria Analysis (MCA) describes anystructured approach used to determine overall preferences amongalternative options, where the options accomplish certain or severalobjectives. The maximizing of water use in arid zones, like NWCB, is ahighly important issue due to the damage, danger and other hazardsassociated to it to human life, properties, and environment. MCAtechniques were tested and evaluated for the purpose of flash floodrisk assessment, hydro-morphological parameters for samplecatchments in NWCB, were used in this analysis.Drainage network and watershed boundaries of NWCB shapefile was created using TOPAZ (Topographic Parameterization)technique from the 90 m Digital Elevation Model (DEMs). These dataare used in Watershed Modeling System (WMS) package toautomatically delineate basin boundaries and define stream networks.Thirty four basins in NWCB were delineated for the study of the riskassessment of flash floods. Cluster analysis, depending on 10 estimatedhydro-morphological parameters, classifies the NWCB into threegroups. Ten chosen hydro-morphological parameters have their directeffect on flash flooding were used for estimating hazard scaledepending on the MCA procedures. The proposed risk scale assumedcategory three for the high Weighted Standardized Risk Factor(WSRF) of five basins, while the category two (moderate WSRF)represents the middle sector of NWCB (19 basins). The class onerepresents 10 basins (low WSRF). Field measurements are highlyrecommended to verify the results of MCA procedure used in thispaper.
Loading...
