空中三角測量による地形情報を用いた牛津川流域の内水氾濫解析
キーワード:
Ushizu River,
lowland,
aerial triangulation,
DEM,
photogrammetry,
topographic information,
inundation,
computational simulation
2004 年 10 巻 p. 233-236
詳細
2004 年 10 巻 p. 233-236
An aerial triangulation is applied to obtain very fine orthoimages and DEMs of the Ushizu River Basin. This information is hardly ever obtained by other measures. In this study, using the obtained topographic information by the aerial triangulation, a 2-D depth-averaged computational simulation of the overland flow is executed. Calculated results suggest the places where the inundation disasters had occurred frequently. It has been found the measure to obtain the topographic information by the digital photogrammetry functions effectively in the lowland.
