Electrical resistivity imaging data for hydrogeological and geological hazard investigations in Taiwan

Chang, Ping; Doyoro, Yonatan Garkebo; Lin, Ding-Jiun; Puntu, Jordi Mahardika; Amania, Haiyina Hasbia; Kassie, Lingerew Nebere

doi:10.1016/j.dib.2023.109377

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…[ 1 , 2 ]) in this environmentally valuable area which is to a certain extend a scientific terra incognita, hydrogeological investigations of hydraulic conductivity and hydrodynamic field, identify geological structure, and characterize engineering properties of the organic soils. The ERI data can be used to monitor groundwater heads [ 3 ] (whether generally hydrogeological conditions; i.e. [ 4 ]) as well as terrain changes (subsidence) by comparing with future survey findings.…”

Section: Value Of the Datamentioning

confidence: 99%

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Electrical resistivity imaging data for hydrogeological and geological investigations of Szuszalewo peatland (North-East Poland)

Kaczmarek,

Sinicyn,

Kochanek

et al. 2024

Data in Brief

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Section: Value Of the Datamentioning

confidence: 99%

“…The ERI data can be used to monitor groundwater heads [ 3 ] (whether generally hydrogeological conditions; i.e. [ 4 ]) as well as terrain changes (subsidence) by comparing with future survey findings.…”

Section: Value Of the Datamentioning

confidence: 99%

Electrical resistivity imaging data for hydrogeological and geological investigations of Szuszalewo peatland (North-East Poland)

Kaczmarek,

Sinicyn,

Kochanek

et al. 2024

Data in Brief

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“…This method entails measuring the electrical resistivity of various materials and structures beneath the surface by transmitting a direct current through the ground and assessing the resulting potential differences. Due to their environmentally friendly nature and cost-effectiveness, direct-current measurements have found extensive application in diverse fields, including engineering studies [1-4], hydro-geological work [5][6][7], mineral resource exploration [8,9], and humanitarian geophysics [10]. In these geophysical explorations, the topography is typically non-flat, and the presence of the terrain will lead to false anomalies in apparent resistivity [11].…”

Section: Introductionmentioning

confidence: 99%

A Legendre Spectral-Element Method to Incorporate Topography for 2.5D Direct-Current-Resistivity Forward Modeling

Xie,

Zhu,

Tong

et al. 2024

Mathematics

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An effective and accurate solver for the direct-current-resistivity forward-modeling problem has become a cutting-edge research topic. However, computational limitations arise due to the substantial amount of data involved, hindering the widespread use of three-dimensional forward modeling, which is otherwise considered the most effective approach for identifying geo-electrical anomalies. An efficient compromise, or potentially an alternative, is found in two-and-a-half-dimensional (2.5D) modeling, which employs a three-dimensional current source within a two-dimensional subsurface medium. Consequently, a Legendre spectral-element algorithm is developed specifically for 2.5D direct-current-resistivity forward modeling, taking into account the presence of topography. This numerical algorithm can combine the complex geometric flexibility of the finite-element method with the high precision of the spectral method. To solve the wavenumber-domain electrical potential variational problem, which is converted into the two-dimensional Helmholtz equation with mixed boundary conditions, the Gauss–Lobatto–Legendre (GLL) quadrature is employed in all discrete quadrilateral spectral elements, ensuring identical Legendre polynomial interpolation and quadrature points. The Legendre spectral-element method is applied to solve a two-dimensional Helmholtz equation and a resistivity half-space model. Numerical experiments demonstrate that the proposed approach yields highly accurate numerical results, even with a coarse mesh. Additionally, the Legendre spectral-element algorithm is employed to simulate the apparent resistivity distortions caused by surface topographical variations in the direct-current resistivity Wenner-alpha array. These numerical results affirm the substantial impact of topographical variations on the apparent resistivity data obtained in the field. Consequently, when interpreting field data, it is crucial to consider topographic effects to the extent they can be simulated. Moreover, our numerical method can be extended and implemented for a more accurate computation of three-dimensional direct-current-resistivity forward modeling.

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Application of electrical resistivity tomography for groundwater evaluation in Yirgacheffe Town and its environs, Main Ethiopian Rift

Takele,

Husein,

Diriba

et al. 2025

HydroResearch

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Electrical resistivity imaging data for hydrogeological and geological hazard investigations in Taiwan

Cited by 6 publications

References 16 publications

Electrical resistivity imaging data for hydrogeological and geological investigations of Szuszalewo peatland (North-East Poland)

Electrical resistivity imaging data for hydrogeological and geological investigations of Szuszalewo peatland (North-East Poland)

A Legendre Spectral-Element Method to Incorporate Topography for 2.5D Direct-Current-Resistivity Forward Modeling

Application of electrical resistivity tomography for groundwater evaluation in Yirgacheffe Town and its environs, Main Ethiopian Rift

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