GIS -Based Risk Zoning of Flood Disaster in Dongying City
Fan Yanguo
Lei Jiexia
Abstract：Using meteorological data,land use data,TM image,basic geographic information data of Dongying City,the flood disaster risk assessment model was established from four aspects of hazard factor,dis-aster bodies,hazard inducing environment and disaster prevention and mitigation capacity.By expert scoring and AHP method,the weights of each index were calculated.Using GIS spatial analysis technique,each index was rasterized and the zoning map of the flood risk was obtained with 1 00 m ×1 00 m grid as the basic evalua-tion unit.Which divided Dongying flood risk into five levels,including the highest,the second highest,mid-dle,sub -low and low risk area.The results showed that the eastern and western Hekou District,the western Lijin County,the central Dongying District and the southern Guangrao County were at higher risk,and the central Hekou District,the eastern Kenli County and the most area of Dongying City were at lower risk.Over-all,the risk of Hekou District was relatively high and that of Kenli County was relatively low.
Keywords：Flood disasterGISRisk zoningDongying City
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 89-93 )