Analysis of aquifers, humidity levels with geoelectric resistivity value, and NDW Index in the geothermal area of North Langowan

Abstract

This research was conducted to examine the condition (location, depth, and thickness) of the aquifer, to assess the humidity level using the NDW index, and to determine the relationship between aquifer conditions and the sustainability of the geothermal system using the geoelectrical method of resistivity in the North Langowan geothermal area. The comparison between rock layer resistivity data and spectral values based on geological-hydrogeological maps was carried out to determine the relationship between aquifer conditions and humidity levels in the geothermal area to the continuity of the geothermal system in the Tompaso region. The data was processed using IP2WIN and ILWIS programs. The results showed that at the research site there were semi-confined aquifers and free aquifers, which were indicated by low resistivity values. It can be concluded that the aquifer in the North Langowan geothermal area was at a depth ranging from 0 m to 16 m with a thickness ranging from 3.98 to 12 m, moderate wetness, and has a good relationship in supporting the continuity of the Tompaso geothermal system.Indonesian title: Analisis akuifer, tingkat kelembaban dengan nilai resistivitas geolistrik, dan Index NDW di daerah panas bumi Langowan Utara

Analysis of S-Wave Propagation and Resistivity Value in Porous Medium for Conjecture Potential of Groundwater in Lempuing Village, Bengkulu City

“…Sihotang et al (2018) classify the type of aquifer not potential because it is influenced by rock conditions in the region research dominated by claystone and siltstone. The condition of the aquifer has a classification of humidity levels including moderate wetness which indicates good continuity of the geothermal system (Wowor et al, 2021). Maemuna et al (2017) conducted research using the Schlumberger configuration found the presence of an aquifer at a depth of 7.57 -23.8 m with sand type.…”