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<title lang=en>Groundwater fluxes within sandy beaches: swash-driven flow vs cross-barrier gradients</title>
<creator>Sous, Damien</creator>
<creator>PETITJEAN, Lise</creator>
<creator>Bouchette, Frederic</creator>
<creator>Rey, Vincent</creator>
<creator>Meulé, Samuel</creator>
<creator>Sabatier, François</creator>
<contributor>Institut méditerranéen d'océanologie (MIO) ; Institut de Recherche pour le Développement (IRD) - Aix Marseille Université (AMU) - Institut de recherche pour le développement [IRD] : UMR235 - Université de Toulon (UTLN) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Centre européen de recherche et d'enseignement de géosciences de l'environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD) - Aix Marseille Université (AMU) - Collège de France (CdF) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>Coastal Dynamics 2017</source>
<coverage>Helsingor, Denmark</coverage>
<identifier>hal-01562908</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01562908</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01562908</source>
<source>Coastal Dynamics 2017, Jun 2017, Helsingor, Denmark. Proceedings of Coastal Dynamics 2017</source>
<language>en</language>
<subject lang=en> swash zone</subject>
<subject lang=en> groundwater dynamics</subject>
<subject lang=en> watertable gradients</subject>
<subject lang=en> seasonal survey</subject>
<subject lang=en> field experiment</subject>
<subject>[SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere</subject>
<type>info:eu-repo/semantics/conferenceObject</type>
<type>Conference papers</type>
<description lang=en>This communication reports on a field experiment carried out on a microtidal beach in Camargue, France. The analysis is built on the initial work presented by Sous et al. (2016) on swash-groundwater dynamics. The analysis of a cross-shore network of buried pressure sensors allows to monitor the watertable dynamics over the full 2013-2014 winter season. The pressure head gradients are observed to be primarily seaward, forced by a higher level at the landward boundary. The groundwater flux is driven by the relative fluctuations of Still Water Level and inland elevations. Rain and tides have a little effect. A nearly isolated groundwater circulation is driven by wave activity below the swash zone whatever the overall watertable gradient. Estimations of beach groundwater discharge over the Gulf of Beauduc reveal the importance of beach groundwater in the exchanges between coastal aquifer and open sea.</description>
<date>2017-06-12</date>
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