Articles | Volume 24, issue 4
Hydrol. Earth Syst. Sci., 24, 2121–2139, 2020
https://doi.org/10.5194/hess-24-2121-2020
Hydrol. Earth Syst. Sci., 24, 2121–2139, 2020
https://doi.org/10.5194/hess-24-2121-2020

Research article 30 Apr 2020

Research article | 30 Apr 2020

Time-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquifer

Andrea Palacios et al.

Data sets

[Dataset] Time-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquifer A. Palacios, J. Ledo, N. Linde, L. Luquot, F. Bellmunt, A. Folch, L. del Val, D. Bosch, P. A. Pezard, A. Marcuello, L. Martínez-Pérez, P. Queralt, and J. Carrera https://doi.org/10.20350/digitalCSIC/12500

Time-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquifer A. Palacios, J. Ledo, N. Linde, L. Luquot, F. Bellmunt, A. Folch, L. del Val, D. Bosch, P. A. Pezard, A. Marcuello, L. Martínez-Pérez, P. Queralt, and J. Carrera http://hplus.ore.fr/en/palacios-et-al-2020-hess-data

Model code and software

[Dataset] Time-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquifer A. Palacios, J. Ledo, N. Linde, L. Luquot, F. Bellmunt, A. Folch, L. del Val, D. Bosch, P. A. Pezard, A. Marcuello, L. Martínez-Pérez, P. Queralt, and J. Carrera https://doi.org/10.20350/digitalCSIC/12500

Video supplement

[Dataset] Time-lapse cross-hole electrical resistivity tomography (CHERT) for monitoring seawater intrusion dynamics in a Mediterranean aquifer A. Palacios, J. Ledo, N. Linde, L. Luquot, F. Bellmunt, A. Folch, L. del Val, D. Bosch, P. A. Pezard, A. Marcuello, L. Martínez-Pérez, P. Queralt, and J. Carrera https://doi.org/10.20350/digitalCSIC/12500

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Short summary
Coastal areas are highly populated and seawater intrusion endangers the already scarce freshwater resources. We use, for the first time, a geophysical experiment called cross-hole electrical resistivity tomography to monitor seawater intrusion dynamics. The technique relies on readings of rock and water electrical conductivity to detect salt in the aquifer. Two years of experiment allowed us to reveal variations in aquifer salinity due to natural seasonality, heavy-rain events and droughts.