Geoelectrical survey over perched aquifers in the northern part of Upper Sakarya River Basin, Turkiye
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Groundwater Science & Engineering Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, a groundwater exploration survey was conducted using the DC Resistivity (DCR) method in a hydrogeological setting containing a perched aquifer. DCR data were gathered and an electrical tomography section was recovered using conventional four-electrode instruments with a Schlumberger array and a two-dimensional (2D) inversion scheme. The proposed scheme was tested over a synthetic three-dimensional (3D) subsurface model before deploying it in a field situation. The proposed method indicated that gathering data with simple four-electrode instruments at stations along a line and 2D inversion of datasets at multiple stations can recover depth intervals of the studied aquifer in the hydrogeological setting even if it has a 3D structure. In this study, 2D inversion of parallel profiles formed a pseudo-3D volume of the subsurface resistivity structures and mapped out multiple resistive (>25 ohm center dot m) bodies at shallow (between 50-100 m) and deep sections (>150 m). In general, the proposed method is convenient to encounter geological units that have limited vertical and spatial extensions in any direction and presents resistivity contrast from groundwater-bearing geologic materials.
Açıklama
Anahtar Kelimeler
Groundwater, Perched Aquifer, DC Resistivity, Inversion, Sakarya River, T?rkiye
Kaynak
Journal of Groundwater Science and Engineering
WoS Q Değeri
N/A
Scopus Q Değeri
Q2
Cilt
10
Sayı
4
