Articles | Volume 24, issue 11
Hydrol. Earth Syst. Sci., 24, 5655–5672, 2020
https://doi.org/10.5194/hess-24-5655-2020
Hydrol. Earth Syst. Sci., 24, 5655–5672, 2020
https://doi.org/10.5194/hess-24-5655-2020

Research article 27 Nov 2020

Research article | 27 Nov 2020

Hydraulic and geochemical impact of occasional saltwater intrusions through a submarine spring in a karst and thermal aquifer (Balaruc peninsula near Montpellier, France)

Marie-Amélie Pétré et al.

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Hydraulic and geochemical impact of occasional saltwater intrusions through a submarine spring in a karst and thermal aquifer (Balaruc peninsula near Montpellier, France) M.-A. Pétré, B. Ladouche, J.-L. Seidel, R. Hemelsdaël, V. de Montety, C. Batiot-Guilhe, and C. Lamotte https://doi.org/10.5281/zenodo.3893897

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Short summary
We studied the impact of occasional saltwater intrusions into the karst aquifer of the Balaruc peninsula (France). Using hydrogeological and geochemical data, this study shows that the hydraulic impact on the aquifer is rapid and of regional extent, whereas the geochemical impact is observed at the local scale and is temporally persistent. This research supports groundwater management by providing a better understanding of the hydrodynamics and recovery of the aquifer after saltwater intrusions.