Articles | Volume 25, issue 4
Hydrol. Earth Syst. Sci., 25, 1785–1812, 2021
Hydrol. Earth Syst. Sci., 25, 1785–1812, 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.

Related authors

Large-scale ERT surveys for investigating shallow regolith properties and architecture
Laurent Gourdol, Rémi Clément, Jérôme Juilleret, Laurent Pfister, and Christophe Hissler
Hydrol. Earth Syst. Sci. Discuss.,,, 2018
Revised manuscript not accepted
Short summary

Related subject area

Subject: Vadose Zone Hydrology | Techniques and Approaches: Instruments and observation techniques
Towards disentangling heterogeneous soil moisture patterns in cosmic-ray neutron sensor footprints
Daniel Rasche, Markus Köhli, Martin Schrön, Theresa Blume, and Andreas Güntner
Hydrol. Earth Syst. Sci., 25, 6547–6566,,, 2021
Short summary
The International Soil Moisture Network: serving Earth system science for over a decade
Wouter Dorigo, Irene Himmelbauer, Daniel Aberer, Lukas Schremmer, Ivana Petrakovic, Luca Zappa, Wolfgang Preimesberger, Angelika Xaver, Frank Annor, Jonas Ardö, Dennis Baldocchi, Marco Bitelli, Günter Blöschl, Heye Bogena, Luca Brocca, Jean-Christophe Calvet, J. Julio Camarero, Giorgio Capello, Minha Choi, Michael C. Cosh, Nick van de Giesen, Istvan Hajdu, Jaakko Ikonen, Karsten H. Jensen, Kasturi Devi Kanniah, Ileen de Kat, Gottfried Kirchengast, Pankaj Kumar Rai, Jenni Kyrouac, Kristine Larson, Suxia Liu, Alexander Loew, Mahta Moghaddam, José Martínez Fernández, Cristian Mattar Bader, Renato Morbidelli, Jan P. Musial, Elise Osenga, Michael A. Palecki, Thierry Pellarin, George P. Petropoulos, Isabella Pfeil, Jarrett Powers, Alan Robock, Christoph Rüdiger, Udo Rummel, Michael Strobel, Zhongbo Su, Ryan Sullivan, Torbern Tagesson, Andrej Varlagin, Mariette Vreugdenhil, Jeffrey Walker, Jun Wen, Fred Wenger, Jean Pierre Wigneron, Mel Woods, Kun Yang, Yijian Zeng, Xiang Zhang, Marek Zreda, Stephan Dietrich, Alexander Gruber, Peter van Oevelen, Wolfgang Wagner, Klaus Scipal, Matthias Drusch, and Roberto Sabia
Hydrol. Earth Syst. Sci., 25, 5749–5804,,, 2021
Short summary
Technical note: Evaporating water is different from bulk soil water in δ2H and δ18O and has implications for evaporation calculation
Hongxiu Wang, Jingjing Jin, Buli Cui, Bingcheng Si, Xiaojun Ma, and Mingyi Wen
Hydrol. Earth Syst. Sci., 25, 5399–5413,,, 2021
Short summary
Technical note: Unresolved aspects of the direct vapor equilibration method for stable isotope analysis (δ18O, δ2H) of matrix-bound water: unifying protocols through empirical and mathematical scrutiny
Benjamin Gralher, Barbara Herbstritt, and Markus Weiler
Hydrol. Earth Syst. Sci., 25, 5219–5235,,, 2021
Short summary
Spatio-temporal soil moisture retrieval at the catchment scale using a dense network of cosmic-ray neutron sensors
Maik Heistermann, Till Francke, Martin Schrön, and Sascha E. Oswald
Hydrol. Earth Syst. Sci., 25, 4807–4824,,, 2021
Short summary

Cited articles

Abdullah, F. M., Loke, M. H., Nawawi, M., and Abdullah, K.: Assessing the reliability and performance of optimized and conventional resistivity arrays for shallow subsurface investigations, J. Appl. Geophys., 155, 237–245, 2018. 
Ahrens, J., Geveci, B., and Law, C.: ParaView: An End-User Tool for Large Data Visualization, in: Visualization Handbook 2005, edited by: Hansen, C. D. and Johnson, C. R., Butterworth-Heinemann, 717–731,, 2005. 
Alamry, A. S., van der Meijde, M., Noomen, M., Addink, E. A., van Benthem, R., and de Jong, S. M.: Spatial and temporal monitoring of soil moisture using surface electrical resistivity tomography in Mediterranean soils, Catena, 157, 388–396, 2017. 
Allroggen, N., Beiter, D., and Tronicke, J.: Ground-penetrating radar monitoring of fast subsurface processes, Geophysics, 85, 19–23, 2020. 
Ameli, A. A., Amvrosiadi, N., Grabs, T., Laudon, H., Creed, I. F., McDonnell, J. J., and Bishop, K.: Hillslope permeability architecture controls on subsurface transit time distribution and flow paths, J. Hydrol., 543, 17–30, 2016. 
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.