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<publisher>HAL CCSD</publisher>
<title lang=en>Hydrodynamics in the Gulf of Aigues-Mortes, NW Mediterranean Sea : In situ and modelling data.</title>
<creator>Leredde, Y.</creator>
<creator>Denamiel, C.</creator>
<creator>Brambilla, E.</creator>
<creator>Lauer-Leredde, C.</creator>
<creator>Bouchette, F.</creator>
<creator>Marsaleix, P.</creator>
<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>Laboratoire d'aérologie - LA (LA) ; Université Paul Sabatier - Toulouse 3 (UPS) - Institut national des sciences de l'Univers (INSU - CNRS) - Observatoire Midi-Pyrénées (OMP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<source>ISSN: 0278-4343</source>
<source>Continental Shelf Research</source>
<publisher>Elsevier</publisher>
<identifier>hal-00196620</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00196620</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00196620</source>
<source>Continental Shelf Research, Elsevier, 2007, 27, pp.2389-2406. 〈10.1016/j.csr.2007.06.006〉</source>
<identifier>DOI : 10.1016/j.csr.2007.06.006</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2007.06.006</relation>
<language>en</language>
<subject lang=en>Current data</subject>
<subject lang=en>Modelling</subject>
<subject lang=en>Shelf dynamics</subject>
<subject lang=en>Wind-induced currents</subject>
<subject lang=en>Sewage dispersion</subject>
<subject>[PHYS.PHYS.PHYS-AO-PH] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The Gulf of Aigues-Mortes (NW Mediterranean Sea) is a midshelf zone whose scale is an intermediate between the nearshore scale (0–10 m depth) and the coastal scale (including the whole continental shelf). Its hydrodynamics is investigated for the first time. ADCP, CTD and thermosalinograph data were collected during three short cruises (HYGAM; March 6–7, 20–21, April 5–6, 2005). They were scheduled approximately every 15 days to sample the gulf circulation under different weather conditions. Moreover, the cruise data were used to validate the Symphonie model, a 3D primitive equations circulation model. The circulation features displayed by in situ data were well reproduced by Symphonie. A downscaling modelling approach was implemented, the largest scale being obtained by the replay of the MFSTEP regional model of the North-Western Mediterranean Sea. The analysis, closely coupling in situ measurements and model results, provides information that would not have been obtained using data separately. The great variability of the oceanic circulation at this scale is well evidenced. Winds are the main forces, not only locally but also at a larger scale. North winds generate coherent structures interacting with the general Mediterranean circulation. The explanation of the induced currents is then not straightforward, some of them being, for example, northward. South and southeast winds reinforce the sloping surface, the latter allowing the geostrophic equilibrium with longshore currents. This study, focused on the end of winter 2004–2005, also enhances the heat fluxes from offshore to nearshore, as well as the initiation of shelf dense waters. The knowledge of the midshelf oceanic circulation is then applied to run a numerical experiment which describes both the dispersion of a fictive contaminant from a point S (at the centre of the GAM), and evaluates the risk of contamination of the beaches along the GAM shores.</description>
<date>2007</date>
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