ACADSTAFF UGM
| Title | : | Pendugaan Aliran Sungai Bawah Tanah Dalam Pemenuhan Kebutuhan Air Masyarakat Desa Hargosari Gunungkidul Berdasarkan Data VLF-EM Terkoreksi Topografi |
| Author | : |
Rahmat Faizal (1) Prof. Dr. Sismanto, M.Si. (2) Rosmalia Handayani (3) Asta Asta (4) |
| Date | : | 2017 |
| Keyword | : | Sungai Bawah Tanah Bribin, VLF-EM, filter Karous-Hjelt, Filter fraser, Rapat arus ekivalen Sungai Bawah Tanah Bribin, VLF-EM, filter Karous-Hjelt, Filter fraser, Rapat arus ekivalen |
| Abstract | : | Hargosari region is located in the Gunungsewu karst area known as an infertile area and less water especially during dry season. Geologically, it is composed by limestones that potentially cause underground river as a result of dissolving process. VLF-EM method is used to know the pattern of underground river associated with the contrast of conductive physical parameter caused by the existance of water in the hole of limestones. The purpose of this study are to determine Bribin underground river trace and pattern as well as its modelling using the lnv2DVLF software. The qualitative interpretation was done based on the data processing that has been topography corrected using a moving average filter and Karous-Hjelt filter, while the quantitative interpretation using lnv2DVLF program and visualised using Surfer 12. Based on the qualitative and quantitative interpretations, it can be concluded that Bribin underground river flows from the east to the west direction through Hargosari region, and it consists of two underground river streams which are interconnected. The width of conductive area was (255) m at the depth range about 148-184 m. |
| Group of Knowledge | : | Geofisika |
| Original Language | : | Bahasa Indonesia |
| Level | : | Nasional |
| Status | : |
Published
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