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<datestamp>2018-01-11</datestamp>
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<title lang=en>Typology of nearshore bars in the Gulf of Lions (France) using LIDAR technology</title>
<creator>Aleman, N.</creator>
<creator>Robin, N.</creator>
<creator>Certain, R.</creator>
<creator>Vanroye, C.</creator>
<creator>Barusseau, J. -P.</creator>
<creator>Bouchette, Frederic</creator>
<contributor>Centre de formation et de recherche sur l'environnement marin (CEFREM) ; Université de Perpignan Via Domitia (UPVD) - Institut national des sciences de l'Univers (INSU - CNRS) - 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>
<source>ISSN: 0749-0208</source>
<source>EISSN: 1551-5036</source>
<source>Journal of Coastal Research</source>
<publisher>Coastal Education and Research Foundation</publisher>
<identifier>hal-00783187</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00783187</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00783187</source>
<source>Journal of Coastal Research, Coastal Education and Research Foundation, 2011, SI64, pp.721-725</source>
<language>en</language>
<subject lang=fr>LIDAR</subject>
<subject lang=fr>Crescentic bar</subject>
<subject lang=fr>straight bar Languedoc-Roussillon</subject>
<subject>[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Nearshore bars are generally present on sandy coasts and play a significant role in wave breaking and sediment exchange between beach and shoreface. The study area is located on the Languedoc-Roussillon coast in the Gulf of Lions (southern part of the French Mediterranean coast). This microtidal environment is classified as a wave-dominated coast. The sand coast displays different bar systems (single or multiple; straight or crescentic). The alongshore variability of bar morphology in the nearshore zone was investigated in August 2009 during one week, using a topo-bathymetric LIDAR data set (300 km(2)). LIDAR makes it possible to cover a large area in a very short time with a high resolution. The topo-bathymetric LIDAR offers the added benefit of morphological information about the beach-sea transition in very shallow water (below I in), data often difficult if not impossible to obtain with traditional techniques. The purpose of this paper is 1) to depict the distribution of bars and their characteristics along the 180 km coast of the Gulf of Lions; 2) to update the classifications of sand bars typologies in Languedoc-Roussillon; 3) to pay particular attention to the description of the intricate inner system. Globally, cross-shore distribution of subtidal morphologies is characterized by both an outer and an inner system. The outer system is crescent-shaped in the south and straight in the northern part with a distinctive regional delimitation. The inner system comprises an inner bar and, near the coast, a complex fluctuating bar called Low Bar Beach (LBB). Several intermediate states were identified and added to the new classification proposed in this paper. These results clearly emphasize the importance of LIDAR technology for a better understanding of bar behaviour and single and/or multi-bar beach organisation.</description>
<date>2011</date>
</dc>
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