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<title lang=en>Intense storm activity during the Little Ice Age on the French Mediterranean coast</title>
<creator>Dezileau, Laurent</creator>
<creator>Sabatier, Pierre</creator>
<creator>Blanchemanche, P.</creator>
<creator>Joly, Baptiste</creator>
<creator>Swingedouw, D.</creator>
<creator>Cassou, C.</creator>
<creator>Castaings, Jérôme</creator>
<creator>Martinez, P.</creator>
<creator>Von Grafenstein, U.</creator>
<contributor>Risques ; 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) - 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>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>Environnements, Dynamiques et Territoires de la Montagne (EDYTEM) ; Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Archéologie des Sociétés Méditerranéennes (ASM) ; Université Paul-Valéry - Montpellier 3 (UM3) - Ministère de la Culture et de la Communication (MCC) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) ; CERFACS</contributor>
<contributor>Environnements et Paléoenvironnements OCéaniques (EPOC) ; Observatoire aquitain des sciences de l'univers (OASU) ; Université Sciences et Technologies - Bordeaux 1 - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Université Sciences et Technologies - Bordeaux 1 - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE) ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) - Commissariat à l'énergie atomique et aux énergies alternatives (CEA) - Université Paris-Saclay - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0031-0182</source>
<source>Palaeogeography, Palaeoclimatology, Palaeoecology</source>
<publisher>Elsevier</publisher>
<identifier>hal-00617525</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00617525</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00617525</source>
<source>Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2011, 299 (1-2), pp.289-297. 〈10.1016/j.palaeo.2010.11.009〉</source>
<identifier>DOI : 10.1016/j.palaeo.2010.11.009</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2010.11.009</relation>
<language>en</language>
<subject lang=en>Lagoon</subject>
<subject lang=en>Storm</subject>
<subject lang=en>Little Ice Age</subject>
<subject lang=en>North Atlantic Oscillation</subject>
<subject lang=en>Mediterranean Sea</subject>
<subject lang=en>Risk assessments</subject>
<subject>[SDU.STU.CL] Sciences of the Universe [physics]/Earth Sciences/Climatology</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Understanding long-term variability in the frequency of intense storm activity is important for assessing whether changes are controlled by climate evolution. Understanding this variability is also important for predicting present and future community vulnerability and economic loss. Our ability to make these assessments has been limited by the short (less than 50 years) instrument record of storm activity. Storm-induced deposits preserved in the sediments of coastal lagoons offer the opportunity to study the links between climatic conditions and storm activity on longer timescales. In this study, we present a record of these extreme climatic events that have occurred in the French Mediterrannean coast over the past 1500 years. The identification of these extreme events is based on the analysis of sediment cores from Gulf of Aigues-Mortes lagoons that contain a specific sedimentary and geochemical signature associated with intense storms.;Overwash deposits do not show any evidence of intense storm landfalls in the region for several hundred years prior to the late 17th century A.D. The apparent increase in intense storms around 250 years ago occurs during the latter half of the Little Ice Age, a time of lower continental surface temperatures. Comparison of the sediment record with palaeoclimate records indicates that this variability was probably modulated by atmospheric dynamics. The apparent increase of the superstorm activity during the latter half of the Little Ice Age was probably due to the thermal gradient increase leading to enhanced lower tropospheric baroclinicity over a large Central Atlantic/European domain and leading to a modification of the occurrence of extreme wind events along the French Mediterranean coast. A complete understanding of the relationship between climate fluctuations, storm activity, and the coastal response will be crucial to predicting the impacts of future climate change.</description>
<date>2011</date>
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