GIS AND SPELEOLOGY SURVEY FOR ESTIMATING UNDERGROUND RIVER SYSTEM IN KARST REGION (A Case Study in Pucung Village, Wonogiri, Central Java) Drs. Priyono, M. Si., dkk
Like most areas of karst, Pucung Village, Wonogiri, Central Java, that located in Gunung Sewu karst region, has difficulty to get fresh water for daily use. However, although dry on the surface, Pucung village has potential resources of underground water, This paper describes the use of Geographic Information System (GIS) and speleology survey for estimating underground river system ini Pucung Village. The primary data used is data from color infrared aerial photo interpretation scale of 1: 10,000 and field work (survey surface and subsurface). The method used is a color infrared aerial photo interpretation scale of 1: 10,000, the speleology survey for cave mapping, and GIS. Aerial photo interpretation to get geological map, landform map, morphology map, drainage patterns map, and the cave distribution map. GIS is used to predict the underground river system through maps overlay that have been produced. The results showed that in the Pucung Village there is an underground river system that the corridors found in the Suruh Cave. The most potential underground water is best found in the cave corridors branching and the mainstream of the underground river. The water discharge is 2 liters/sec. The flow is constant throughout the year. This underground river water resource could potentially be lifted to meet the needs of fresh water for Pucung villagers who often experience drought in the dry season
Keywords: GISAppication, Speleology Survey, Underground River, Karst.
Upload tanggal 4 Oktober 2016