数値地形モデルを用いた地形分類手法の開発

Abstract

Inclination of the trend surface, the frequency of ridges and valleys, and the frequency of the break of inclination were abstracted from the digital topographical map (DEM) to make an automated landform classification. It was found that current landform classification can be simulated with DEM using two criteria of inclination of the trend surface and the frequency of the ridges and valleys. It is also pointed out that the information other than the topography is needed for a complete landform classification.It is, however, emphasyzed that a computer-aided landform classification with DEM is useful for understanding outline of the interested areas and for reducing the labor and personal difference.