Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4141-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4141-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Brief communication: Use of lightweight and low-cost steel net electrodes for electrical resistivity tomography (ERT) surveys performed on coarse-blocky surface environments
Department of Geosciences, Università degli Studi di Padova, Padova, Italy
Luca Peruzzo
Department of Geosciences, Università degli Studi di Padova, Padova, Italy
Jacopo Boaga
Department of Geosciences, Università degli Studi di Padova, Padova, Italy
Alberto Carrera
Department of Geosciences, Università degli Studi di Padova, Padova, Italy
Ilaria Barone
Department of Geosciences, Università degli Studi di Padova, Padova, Italy
Alexander Bast
WSL Institute for Snow and Avalanche Research SLF, Permafrost Research Group, Davos Dorf, Switzerland
Climate Change, Extremes and Natural Hazards in Alpine Regions Research Center CERC, Davos Dorf, Switzerland
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A new combination of temperature, water pressure and cross-borehole electrical resistivity data is used to investigate ice/water contents in an ice-rich rock glacier. The landform is close to 0°C and has locally heterogeneous characteristics, ice/water contents and temperatures. The techniques presented continuously monitor temporal and spatial phase changes to a depth of 12 m and provide the basis for a better understanding of accelerating rock glacier movements and future water availability.
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In the last decades, geochemical investigations at the springs of rock glaciers have been used to estimate their drainage processes, and the frozen layer is typically considered to act as an aquiclude or aquitard. In this work, we evaluated the hydraulic behavior of a mountain permafrost site by executing a geophysical monitoring experiment. Several hundred liters of salt water have been injected into the subsurface, and geoelectrical measurements have been performed to define the water flow.
Marcia Phillips, Chasper Buchli, Samuel Weber, Jacopo Boaga, Mirko Pavoni, and Alexander Bast
The Cryosphere, 17, 753–760, https://doi.org/10.5194/tc-17-753-2023, https://doi.org/10.5194/tc-17-753-2023, 2023
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A new combination of temperature, water pressure and cross-borehole electrical resistivity data is used to investigate ice/water contents in an ice-rich rock glacier. The landform is close to 0°C and has locally heterogeneous characteristics, ice/water contents and temperatures. The techniques presented continuously monitor temporal and spatial phase changes to a depth of 12 m and provide the basis for a better understanding of accelerating rock glacier movements and future water availability.
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The Cryosphere Discuss., https://doi.org/10.5194/tc-2022-190, https://doi.org/10.5194/tc-2022-190, 2022
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The Ice Memory project aims to extract, analyze, and store ice cores from worldwide retreating glaciers. One of the selected sites is the last remaining ice body in the Apennines, the Calderone Glacier. To assess the most suitable drilling position, geophysical surveys were performed. Reliable ground penetrating radar measurements have been positively combined with a geophysical technique rarely applied in glacier environments, the Frequency Domain Electro-Magnetic prospection.
Cited articles
Bast, A., Pavoni, M., Lichtenegger, M., Buckel, J., and Boaga, J.: The Use of Textile Electrodes for Electrical Resistivity Tomography in Periglacial, Coarse Blocky Terrain: A Comparison With Conventional Steel Electrodes, Permafrost Periglac. Process., 36, 110–122, https://doi.org/10.1002/ppp.2257, 2024.
Binley, A.: Tools and Techniques: Electrical Methods, Treatise on Geophysics, 2nd edn., Elsevier B.V., https://doi.org/10.1016/B978-0-444-53802-4.00192-5, 2015.
Binley, A. and Slater, L.: Resistivity and induced polarization: Theory and applications to the near-surface earth, Cambridge University Press, https://doi.org/10.1017/9781108685955, 2020.
Blanchy, G., Saneiyan, S., Boyd, J., McLachlan, P., and Binley, A.: ResIPy, an intuitive open source software for complex geoelectrical inversion/modeling, Comput. Geosci., 137, 104423, https://doi.org/10.1016/j.cageo.2020.104423, 2020.
Boaga, J., Pavoni, M., Bast, A., and Weber, S.: Brief communication: On the potential of seismic polarity reversal to identify a thin low-velocity layer above a high-velocity layer in ice-rich rock glaciers, The Cryosphere, 18, 3231–3236, https://doi.org/10.5194/tc-18-3231-2024, 2024.
Boaga, J., Ghinassi, M., D'Alpaos, A., Deidda, G. P., Rodriguez, G., and Cassiani, G.: Geophysical investigations unravel the vestiges of ancient meandering channels and their dynamics in tidal landscapes, Sci. Rep., 8, 1708, https://doi.org/10.1038/s41598-018-20061-5, 2018.
Buckel, J., Mudler, J., Gardeweg, R., Hauck, C., Hilbich, C., Frauenfelder, R., Kneisel, C., Buchelt, S., Blöthe, J. H., Hördt, A., and Bücker, M.: Identifying mountain permafrost degradation by repeating historical electrical resistivity tomography (ERT) measurements, The Cryosphere, 17, 2919–2940, https://doi.org/10.5194/tc-17-2919-2023, 2023.
Carrera, A.: AlbCa/BC_TCnet: v1.0 (1.0), Zenodo [data set], https://doi.org/10.5281/zenodo.14651003, 2025.
Carrera, A., Peruzzo, L., Longo, M., Cassiani, G., and Morari, F.: Uncovering soil compaction: performance of electrical and electromagnetic geophysical methods, SOIL, 10, 843–857, https://doi.org/10.5194/soil-10-843-2024, 2024.
Deiana, R., Deidda, G. P., Cusí, E. D., van Dommelen, P., and Stiglitz, A.: FDEM and ERT measurements for archaeological prospections at Nuraghe S'Urachi (West-Central Sardinia), Archaeological Prospection, 29, 69–86, https://doi.org/10.1002/arp.1838, 2022.
Duba, A., Piwinskii, A. J., Santor, M., and Weed, H. C.: The electrical conductivity of sandstone, limestone and granite, Geophys. J. Int., 53, 583–597, https://doi.org/10.1111/j.1365-246X.1978.tb03761.x, 1978.
Mudler, J., Buckel, J., Bücker, M., and Hördt, A.: Elektrode mit leitfähigem Textilmaterial zur elektrischen Widerstandsmessung des Untergrundes, Patent DE 10 2021 110 721, 2021.
Pavoni, M., Carrera, A., and Boaga, J.: Improving the galvanic contact resistance for geoelectrical measurements in debris areas: A case study, Near Surface Geophysics, 20, 178–191, https://doi.org/10.1002/nsg.12192, 2022.
Pavoni, M., Boaga, J., Carrera, A., Zuecco, G., Carturan, L., and Zumiani, M.: Brief communication: Mountain permafrost acts as an aquitard during an infiltration experiment monitored with electrical resistivity tomography time-lapse measurements, The Cryosphere, 17, 1601–1607, https://doi.org/10.5194/tc-17-1601-2023, 2023.
Pavoni, M., Boaga, J., Peruzzo, L., Barone, I., Mary, B., and Cassiani, G.: Characterization of a Contaminated Site Using Hydro-Geophysical Methods: From Large-Scale ERT Surface Investigations to Detailed ERT and GPR Cross-Hole Monitoring, Water, 16, 1280, https://doi.org/10.3390/w16091280, 2024.
Peruzzo, L., Chou, C., Hubbard, S., Brodie, E. L., Uhlemann, S., Dafflon, B., and Wu, Y.: Outdoor Mesoscale Fabricated Ecosystems: Rationale, Design, and Application to Evapotranspiration, Design, and Application to Evapotranspiration, Sci. Total Environ., 957, 177565, https://doi.org/10.1016/j.scitotenv.2024.177565, 2024.
Reynolds, J. M.: An introduction to applied and environmental geophysics. John Wiley & Sons, ISBN 9778-0-471-48535-3, 2011.
Rücker, C. and Günther, T.: The simulation of finite ERT electrodes using the complete electrode model, Geophysics, 76, F227–F238, https://doi.org/10.1190/1.3581356, 2011.
Rücker, C., Günther, T., and Wagner, F. M.: pyGIMLi: An open-source library for modelling and inversion in geophysics, Comput. Geosci., 109, 106–123, https://doi.org/10.1016/j.cageo.2017.07.011, 2017.
Tso, C. H. M., Kuras, O., Wilkinson, P. B., Uhlemann, S., Chambers, J. E., Meldrum, P. I., Graham, J., Sherlock, E. F., and Binley, A.: Improved characterisation and modelling of measurement errors in electrical resistivity tomography (ERT) surveys, J. Appl. Geophys., 146, 103–119, https://doi.org/10.1016/j.jappgeo.2017.09.009, 2017.
Weidinger, J. T., Korup, O., Munack, H., Altenberger, U., Dunning, S. A., Tippelt, G., and Lottermoser, W.: Giant rock slides from the inside, Earth Planet. Sc. Lett., 389, 62–73, https://doi.org/10.1016/j.epsl.2013.12.017, 2014.
Short summary
We propose an alternative electrode to perform Electrical Resistivity Tomography measurements in coarse blocky environments, such as rock glaciers. Compared to the traditional steel spike electrodes, which need to be hammered between the blocks, the proposed steel-net electrodes can be easily pushed between the builders by hand and then removed. Furthermore, the steel-net electrode weighs one-sixth of the steel spike, and is, therefore, easier to carry in challenging mountain environments.
We propose an alternative electrode to perform Electrical Resistivity Tomography measurements in...