Open AccessHydrogeology of Mangsri Cave, Gunungsewu Karst Area, Java Island, Indonesia
Author(s) -
Ahmad Cahyadi,
Hilary Reinhart,
Angga Wahyu Ristiawan,
Rakhmat Dwi Putra,
Mohammad Ainul Labib,
Muhammad Naufal,
Indra Riyanto,
Fajri Ramadhan,
Angga Dwi Laksono
Publication year - 2021
Publication title -
sjdgge (sumatra journal of disaster, geography and geography education)
Language(s) - English
Resource type - Journals
ISSN - 2580-4030
DOI - 10.24036/sjdgge.v5i1.356
Subject(s) - cave , karst , hydrogeology , groundwater recharge , geology , sinkhole , spring (device) , groundwater , aquifer , hydrology (agriculture) , structural basin , population , archaeology , geomorphology , geography , paleontology , mechanical engineering , demography , geotechnical engineering , engineering , sociology
The Gunungsewu karst area is not only known for its unique landscape but also its recurring drought events. To meet the water supply, the local population utilizes several water potentials, namely doline pond, spring, and underground river. This study was designed to analyze the hydrogeological conditions of Mbangsri Cave, following its accidental discovery by the community at the end of 2018. The hydrogeological analysis was conducted by geological surveys, which consisted of rocks collection and structural measurements, cave mapping, and recharge area delineation based on remote sensing images acquired by unmanned aerial vehicles. The results showed that Mbangsri Cave, in the hydrogeological perspective, had low water resources potential. It is believed to be the result of (1) relatively small catchment area, (2) a fault in the southern part of Mbangsri Cave, creating a small groundwater basin, and (3) the thin epikarst layer, limiting the water storage.