GISを用いた氾濫解析データの作成と飯塚市を中心とした都市域の氾濫解析

抄録

A method of mesh generation for inundation flow analysis based on geographic information system (GIS) was examined and a dynamic flood simulation in the Iiduka-city area, which suffered the greatest damage in the Onga basin, was conducted. The data such as digital elevation and surface model, which are the data of the surface of ground, density and arrangement of buildings and houses, streets etc., was adjusted on a flood simulation using GIS. In the flood simulation, the dynamic flood simulation model was used. The computed results compared with the flood process examined in the field study and observed floodmarks. It shows that the model is a useful tool for examining the behavior of the inundation flows.