STUDY ON PERMEABLE AREA RATIO OF 10m-MESH LAND USE CLASSIFICATION USING ADVANCED GIS DELINEATION IN THE UPPER KANDA RIVER BASIN

Abstract

The authors have been developing Advanced GIS Delineation Data of the upper Kanda river basin by detailed land use recognition. When using distributed water circulation model, grid land use data of 100m or 10m-mesh division is typically used. However there has been no study conducted to verify the permeable area set by the 100m or 10m-mesh land use classification. In this study, we estimated the true permeable area ratio of 10m-mesh land use classification using the advanced GIS delineation. As a result, it was identified that the frequency distribution of permeable area ratio and the characteristic of spatial distribution of permeable area ratio by 10m-mesh.