Articles | Volume 25, issue 4
Hydrol. Earth Syst. Sci., 25, 1785–1812, 2021
https://doi.org/10.5194/hess-25-1785-2021
Hydrol. Earth Syst. Sci., 25, 1785–1812, 2021
https://doi.org/10.5194/hess-25-1785-2021
Research article
07 Apr 2021
Research article | 07 Apr 2021

Exploring the regolith with electrical resistivity tomography in large-scale surveys: electrode spacing-related issues and possibility

Laurent Gourdol et al.

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Latest update: 20 May 2022
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Short summary
Electrical resistivity tomography (ERT) is a remarkable tool for characterizing the regolith, but its use over large areas remains cumbersome due to the requirement of small electrode spacing (ES). In this study we document the issues of using oversized ESs and propose a new approach to overcome this limitation. We demonstrate that our protocol significantly improves the accuracy of ERT profiles using large ES and offers a cost-effective means for carrying out large-scale surveys.