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Budhi Setiawan
University of Sriwijaya
Earth & Planetary Sciences Energy Engineering

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LINEAMENT EXTRACTION AND THE CORRELATION TO VEGETATION AND MOISTURE INDICES FOR GROUNDWATER PREDICTION IN BENGKULU SELATAN REGENCY, INDONESIA Budhi Setiawan; FADHELLATUL KAMIL
Bulletin of Geology Vol 6 No 2 (2022): Bulletin of Geology Special Issue: International Seminar on Earth Sciences and Te
Publisher : Fakultas Ilmu dan Teknologi Kebumian (FITB), Institut Teknologi Bandung (ITB)

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Abstract

Lineament is an actual representation of the geological features in response to a weak zone that might manifest groundwater potential. The research aims to determine the relationship between the lineament extraction and vegetation and surface moisture indices. The study was conducted in Bengkulu Selatan Regency, Bengkulu, based on Shaded Relief images at azimuth 0o, 45o, 90o, and 135o from Digital Elevation Model (DEM) image processing through DEMNAS (8 meters). Then, analysis of vegetation and moisture indices using Normalized Difference Vegetation Index (NDVI), Normalized Difference Moisture Index (NDMI), and Moisture Stress Index (MSI) from Landsat 8 OLI/TIRS extraction image. The Pearson Linear correlation method is used for correlation analysis. Based on the analysis of the lineament data, there are 12,206 lineament patterns, dominantly trending in NW-SE, N-S, and NE-SW. The lineament density parameters show the density level 0 km/km2 -10.44 km/km2. The results of the correlation of data on lineament density to the image index have positive and negative trend values, namely: NDVI (0.16), NDMI (0.37), and MSI (-0.43). From the results, the highest density is straight to the vegetation and high surface moisture. Therefore, the analysis can be used as an initial indicator of the potential presence of groundwater
Co-Authors FADHELLATUL KAMIL