ANALISIS SEBARAN AIR BAWAH TANAH SECARA HORIZONTAL MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI WENNER DI KELURAHAN SIMPANG BARU
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Date
2023-06
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Elfitra
Abstract
subsurface lithology, especially rocks containing groundwater using the
geoelectric method have been investigated. The geoelectric method is a
geophysical method used to determine the geological conditions of the subsurface of
the earth based on variations in the resistivity values of the rock types. The method
used in this study is the Wenner configuration geoelectric method. This method
has several advantages, such as good vertical resolution and high sensitivity to
lateral changes. Apart from knowing about the distribution and depth of
subsurface water, and subsurface conditions, data from research results in the
Simpang Baru Village area can be used regarding the need for clean water for the
community. Data obtained from measurements using the Wenner configuration
geoelectrical method are processed to obtain resistivity, while for interpretation
uses the software Res2Dinv. On a track with a length of 100 meters, it has a depth
of up to 9.56 meters below the surface with a resistivity value with a lowest one of
0.370 Ωm and the highest one is 33141 Ωm. The points of water distribution at
depths of 2.25 – 5.56 m have resistivity values of 0.37 – 1.89 Ωm corresponding
to the horizontal line at points 30 – 84 m.
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Keywords
Groundwater, geoelectric, Wenner, Res2Dinv
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