A GRID-BASED GIS APPROACH TO REGIONAL FLOOD DAMAGE ASSESSMENT

摘要: Regional flood risk assessment is the base for a sound and comprehensive planning or management. The regional loss sum of damages in all flooded parcels. data involved this process are multifarious difficult to establish maintain especially developing countries that suffer most often from hazard. A grid-based GIS approach damage proposed paper. Aggregated census relatively available were used instead at parcel level. An algorithm was disaggregated these aggregated into spatially uniform grid cells as being hazard simulation models. Land use zoning information disaggregation capture realistic spatial distribution economic activities. exceedance probability curve integrate assessments individual event full range presentation risk. framework also developed coupling with management through annual average concepts. Shih-Jr City northern Taiwan study area demonstration algorithm.