Published Paper Details:

The research area is located on Sumedang Regency, West Java Province. This research aims to determine the landforms in the Sumedang Regency based on drainage pattern analysis. This research was carried out through studio analysis and field observation. Stream network and topography data were obtained from Indonesia Topographic Maps and Digital Elevation Model (DEM). Compilation of data from these media becomes the basis for determining the landforms. Based on the results, the research area has varied slopes and different landform. The very steep to steep slopes can be identified in the central, west, and south of the research area whereas the gentle slope to flat area can be identified in the north, east, and some parts of the research area. The research area consists of various types of landform, namely volcanic, fluvial, and tectonic landform. Volcanic cones and hills are part of volcanic landform that can be identified by very steep to steep slope area which has some elongate topographic features and relatively hard-resistant rocks in the west, central, and south of the research area. It can be proven from radial, subradial, parallel, and subparallel drainage patterns. Fluvial landform can be identified by gentle slope to flat area which has erosion and sedimentation process in central, north, east, and northeast of the research area. It can be proven from dendritic and anastomotic drainage patterns. Tectonic landform can be identified by steep to gentle slope area which has tectonic process in the north, central, east and southeast of the research area. It can be proven from subdendritic, recurved trellis, and rectangular drainage patterns. The results of field observation also show that the geological structures developed in the north, east, and southeast of the research area. It can be concluded that the drainage pattern analysis is able to show the general geological characteristic, especially landforms of the research area. However, field observation is also necessary to find out the actual condition in the field.