The terrain classification of earth surface into Mountains, Hills and Plains has an important meaning in land using. Therefore it is necessary to establish systematic earth surface and standard for the it. In this study, we analyzed the Terrain Elemen...
The terrain classification of earth surface into Mountains, Hills and Plains has an important meaning in land using. Therefore it is necessary to establish systematic earth surface and standard for the it. In this study, we analyzed the Terrain Element by using GIS Based upon this, we attempted land classification. First of all, the focal function which is an internal function of the ArcView was utilized as a method to determine a proper cell size that is necessary for the analysis of local relief energy. In order to calculate the local relief energy in 1000m×1000m grid the Avenue Script for the required altitude information has been implemented and enclosed. The analyzed local relief energy and land classification method applied to the gradient are as follows. First, terrain unit is classified into three groups based upon the analyzed local relief energy in 1000m×1000m grid units: plaints land which is less or equal to 30m, hills which is 30-300m, and mountains which is greater than 30m. Second, gradients are analyzed by micro dissecting the 1000m×1000m of local relief energy results to 100m×100m units. And the units are divided into two areas: more than and less than 50% of gentle slope in total. Third, by applying the analysis results of gradient to every single terrain unit whose are classified by local relief energy, it has been classified into Mountains, Hills, and Plains. After applying this standard to Chunahn city, it turns out that Mountains, Hills and Plains are 25.8%, 57.2%, and 17.0% respectively.