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Observations of Tide- and Wave-Driven Groundwater Dynamics in Meso-Tidal Sandy Beach
| dc.rights.license | open | en_US |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | WOUSSEN, Emilie | |
| hal.structure.identifier | Institut méditerranéen d'océanologie [MIO] | |
| dc.contributor.author | SOUS, Damien | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | SENECHAL, Nadia
IDREF: 077248430 | |
| dc.date.accessioned | 2025-03-25T11:18:47Z | |
| dc.date.available | 2025-03-25T11:18:47Z | |
| dc.date.issued | 2024-07-05 | |
| dc.identifier.issn | 2073-4441 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/205659 | |
| dc.description.abstractEn | This study focuses on the non-hydrostatic groundwater dynamics of a meso-tidal sandy beach under the influence of tides and waves. A field campaign was conducted at Lacanau Beach, France, during four consecutive tide cycles in March 2022. Groundwater dynamics was monitored based on a network of buried pressure sensors. The data analysis revealed the combined influences of waves and tides on the groundwater circulation. Tidal-scale groundwater flows are predominantly seaward, primarily controlled by the head gradient resulting from a high coastal aquifer. A circulation cell develops under the swash zone and moves across the beachface following the tidal oscillations. On a daily scale per alongshore and vertical units, the observed flow is 2.5 m$^3$ .m$^{-2}$ .day$^{-1}$, i.e., 912.5 m$^3$.m$^{-2}$.year$^{-1}$. Extrapolating the present dataset, it may be expected that combined events, such as drought-induced aquifer depletion with high tides, could lead to beach-scale gradient reversal, potentially causing salinisation of the continental aquifer. | |
| dc.language.iso | EN | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by/ | |
| dc.subject.en | groundwater | |
| dc.subject.en | field data | |
| dc.subject.en | meso-tidal sandy beach | |
| dc.subject.en | waves and tidal dynamics | |
| dc.subject.en | nonhydrostatic approach | |
| dc.title.en | Observations of Tide- and Wave-Driven Groundwater Dynamics in Meso-Tidal Sandy Beach | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.3390/w16131924 | en_US |
| dc.subject.hal | Planète et Univers [physics]/Sciences de la Terre/Océanographie | en_US |
| dc.subject.hal | Planète et Univers [physics]/Sciences de la Terre/Hydrologie | en_US |
| bordeaux.journal | Water | en_US |
| bordeaux.volume | 16 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | METHYS | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-04734741 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | CC BY | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Water&rft.date=2024-07-05&rft.volume=16&rft.eissn=2073-4441&rft.issn=2073-4441&rft.au=WOUSSEN,%20Emilie&SOUS,%20Damien&SENECHAL,%20Nadia&rft.genre=article |