Identification of potential surface water sources using digital elevation model in district of North Buton

Abstract

District of North Buton is a dry area with low rainfall and the region is immeasurable. Therefore, the use of spatial data from scientific research institutions (NASA and BIG) can be done as an alternative to analyze the potential of surface water sources in North Buton District. The purpose of this research is to identify the location of surface water resource in the District of North Buton, so that it can be known whether the location of the catchment area and the amount of discharge. The method used in this study is simulated using open source software-based Geographic Information System (GIS). Based on the catchment area, rainfall distribution value and runoff coefficient value, the mean annual discharge can be determine which is a potential source of surface water. This research resulted in the potential for surface water sources North Buton is a potential point 1 to point potential Catchment 32 with the highest discharge value is 15.1222 m³ / sec (Catchment potential point 10) and the lowest discharge value is 0.525 m³ / sec (Catchment potential point 29).