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

Pétré, Marie-Amélie; Ladouche, Bernard; Seidel, Jean-Luc; Hemelsdaël, Romain; de Montety, Véronique; Batiot-Guilhe, Christelle; Lamotte, Claudine

doi:https://doi.org/10.5194/hess-24-5655-2020

Articles | Volume 24, issue 11

Hydrol. Earth Syst. Sci., 24, 5655–5672, 2020

https://doi.org/10.5194/hess-24-5655-2020

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

Hydrol. Earth Syst. Sci., 24, 5655–5672, 2020

https://doi.org/10.5194/hess-24-5655-2020

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

Articles | Volume 24, issue 11

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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Cumulative views and downloads (calculated since 09 Jul 2020)

Month	HTML	PDF	XML	Total
Jul 2020	106	36	9	151
Aug 2020	13	5	2	20
Sep 2020	15	8	0	23
Oct 2020	11	4	2	17
Nov 2020	184	39	4	227
Dec 2020	4,573	4,401	3	8,977
Jan 2021	4,992	4,932	0	9,924
Feb 2021	4,410	4,379	1	8,790
Mar 2021	4,619	4,599	1	9,219
Apr 2021	5,004	4,999	0	10,003
May 2021	5,731	5,718	0	11,449
Jun 2021	5,891	5,883	0	11,774
Jul 2021	5,846	5,827	0	11,673
Aug 2021	5,964	5,833	0	11,797
Sep 2021	5,167	5,013	0	10,180
Oct 2021	4,471	4,377	0	8,848
Nov 2021	4,890	4,760	0	9,650
Dec 2021	5,384	5,321	0	10,705
Jan 2022	4,546	4,438	0	8,984
Feb 2022	3,756	3,735	0	7,491
Mar 2022	3,795	3,748	3	7,546
Apr 2022	2,011	1,963	3	3,977
May 2022	4,187	4,108	2	8,297
Jun 2022	2,423	2,344	1	4,768
Jul 2022	4,541	4,507	0	9,048
Aug 2022	1,337	1,280	0	2,617
Sep 2022	4,863	4,860	0	9,723
Oct 2022	3,216	3,144	3	6,363
Nov 2022	23	6	0	29
Dec 2022	1,258	1,223	0	2,481
Jan 2023	2,869	2,861	2	5,732
Feb 2023	108	108	0	216

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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.

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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)

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