Sensitivity and Resolution Capacity of Electrode Configurations

This paper reviews the geological conditions, data density, and acquisition geometry that have direct influence on the sensitivity and resolution capacity of several electrode configurations. The parameters appreciate the effectiveness of automated multichannel system which has evolved several elect...

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Main Author: Cyril Chibueze Okpoli
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Geophysics
Online Access:http://dx.doi.org/10.1155/2013/608037
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author Cyril Chibueze Okpoli
author_facet Cyril Chibueze Okpoli
author_sort Cyril Chibueze Okpoli
collection DOAJ
description This paper reviews the geological conditions, data density, and acquisition geometry that have direct influence on the sensitivity and resolution capacity of several electrode configurations. The parameters appreciate the effectiveness of automated multichannel system which has evolved several electrode arrays that are cost effective, reduction in survey time, high sensitivity, and resolution capacity in 2D and 3D resistivity tomographies. The arrays are pole-pole, pole-dipole, pole-bipole, dipole-dipole, Wenner, Wenner-, , gradient, midpoint-potential-referred, Schlumberger, square, and Lee-partition arrays. The gradient array and midpoint-potential-referred are well suited for multichannel surveying and gradient array images are comparable to dipole-dipole and pole-dipole. 2D electrical resistivity surveys can produce out-of-plane anomaly of the subsurface which could be misleading in the interpretation of subsurface features. Hence, a 3D interpretation model should give more accurate results, because of the increase in the reliability of inversion images and complete elimination of spurious features. Therefore, the reduction of anomaly effects and damping factor due to signal to noise ratio result in better spatial resolution image, thus enhancing its usage in environmental and engineering research.
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institution Kabale University
issn 1687-885X
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spelling doaj-art-d4f22fca9ed74dfbace38c59e8d52e5a2025-02-03T01:10:43ZengWileyInternational Journal of Geophysics1687-885X1687-88682013-01-01201310.1155/2013/608037608037Sensitivity and Resolution Capacity of Electrode ConfigurationsCyril Chibueze Okpoli0Department of Geology and Applied Geophysics, Faculty of Science, Adekunle Ajasin University, PMB 001, Akungba-Akoko, Ondo State, NigeriaThis paper reviews the geological conditions, data density, and acquisition geometry that have direct influence on the sensitivity and resolution capacity of several electrode configurations. The parameters appreciate the effectiveness of automated multichannel system which has evolved several electrode arrays that are cost effective, reduction in survey time, high sensitivity, and resolution capacity in 2D and 3D resistivity tomographies. The arrays are pole-pole, pole-dipole, pole-bipole, dipole-dipole, Wenner, Wenner-, , gradient, midpoint-potential-referred, Schlumberger, square, and Lee-partition arrays. The gradient array and midpoint-potential-referred are well suited for multichannel surveying and gradient array images are comparable to dipole-dipole and pole-dipole. 2D electrical resistivity surveys can produce out-of-plane anomaly of the subsurface which could be misleading in the interpretation of subsurface features. Hence, a 3D interpretation model should give more accurate results, because of the increase in the reliability of inversion images and complete elimination of spurious features. Therefore, the reduction of anomaly effects and damping factor due to signal to noise ratio result in better spatial resolution image, thus enhancing its usage in environmental and engineering research.http://dx.doi.org/10.1155/2013/608037
spellingShingle Cyril Chibueze Okpoli
Sensitivity and Resolution Capacity of Electrode Configurations
International Journal of Geophysics
title Sensitivity and Resolution Capacity of Electrode Configurations
title_full Sensitivity and Resolution Capacity of Electrode Configurations
title_fullStr Sensitivity and Resolution Capacity of Electrode Configurations
title_full_unstemmed Sensitivity and Resolution Capacity of Electrode Configurations
title_short Sensitivity and Resolution Capacity of Electrode Configurations
title_sort sensitivity and resolution capacity of electrode configurations
url http://dx.doi.org/10.1155/2013/608037
work_keys_str_mv AT cyrilchibuezeokpoli sensitivityandresolutioncapacityofelectrodeconfigurations