Floodplain Mapping Using Hydraulic Simulation Model in GIS

摘要: In this research, a methodology was applied to integrate hydraulic simulation model, HEC-RAS and GIS analysis for delineation of flood extents depths within selected reach Zaremroud River in Iran. Floodplain modeling is recently new method river engineering discipline essential prediction hazards. It necessary simulate complicated behavior the more simple way, purpose managing performing all training practices. steady flow simulated along 3 km end River, upstream Tajan North zonation maps were derived using integrating analysis. Delineation floodplain conducted different return periods. Critical flooding area distinguished based on grid layer depths. The results indicated that by with could be effective various kinds management scenarios practices mitigation planning.