GIS and Flood Inundation Model-based Flood Risk Assessment in Urbanized Floodplain

摘要

This paper presents the methodology and procedure for flood risk assessment using GIS and flood inundation model (FIM) based on the “micro-zonation concept” in which an entire floodplain considered is divided into numerous unit areas (meshes or grids). In this study, Shinkawa-river floodplain around Nagoya City of Aichi Prefecture in Japan - an urbanized lowland area, which was greatly damaged by heavy rainfall on September 11 to 12, 2000 is chosen as the study area