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

Palacios, Andrea; Ledo, Juan José; Linde, Niklas; Luquot, Linda; Bellmunt, Fabian; Folch, Albert; Marcuello, Alex; Queralt, Pilar; Pezard, Philippe A.; Martínez, Laura; del Val, Laura; Bosch, David; Carrera, Jesús

doi:https://doi.org/10.5194/hess-24-2121-2020

Articles | Volume 24, issue 4

https://doi.org/10.5194/hess-24-2121-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-24-2121-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 4

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, Juan José Ledo, Niklas Linde, Linda Luquot, Fabian Bellmunt, Albert Folch, Alex Marcuello, Pilar Queralt, Philippe A. Pezard, Laura Martínez, Laura del Val, David Bosch, and Jesús Carrera

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

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.