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<title lang=en>Extreme storms during the last 6500 years from lagoonal sedimentary archives in the Mar Menor (SE Spain)</title>
<creator>DEZILEAU, Laurent</creator>
<creator>Perez-ruzafa, Angel</creator>
<creator>Blanchemanche, Philippe</creator>
<creator>Degeai, Jean-Philippe</creator>
<creator>Raji, Otmane</creator>
<creator>Martinez, Philippe</creator>
<creator>Marcos, Concepcion</creator>
<creator>Von Grafenstein, Ulrich</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>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>Universidad de Murcia</contributor>
<contributor>Archéologie des Sociétés Méditerranéennes (ASM) ; Centre National de la Recherche Scientifique (CNRS) - Université Paul-Valéry - Montpellier 3 (UM3) - Ministère de la Culture et de la Communication (MCC)</contributor>
<contributor>Université MohammedV-Agdal, Rabat</contributor>
<contributor>UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (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: 1814-9324</source>
<source>EISSN: 1814-9332</source>
<source>Climate of the Past</source>
<publisher>European Geosciences Union (EGU)</publisher>
<identifier>hal-01357199</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01357199</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01357199v2/document</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01357199/file/cp-12-1389-2016.pdf</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01357199</source>
<source>Climate of the Past, European Geosciences Union (EGU), 2016, 12 (6), pp.1389-1400. 〈10.5194/cp-12-1389-2016〉</source>
<identifier>DOI : 10.5194/cp-12-1389-2016</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-12-1389-2016</relation>
<language>en</language>
<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>Storms and tsunamis, which may seriously endanger human society, are amongst the most devastating marine catastrophes that can occur in coastal areas. Many such events are known and have been reported for the Mediterranean, a region where high-frequency occurrences of these extreme events coincides with some of the most densely populated coastal areas in the world. In a sediment core from the Mar Menor (SE Spain), we discovered eight coarse-grained layers which document marine incursions during periods of intense storm activity or tsunami events. Based on radiocarbon dating, these extreme events occurred around 5250, 4000, 3600, 3010, 2300, 1350, 650, and 80 years cal BP. No comparable events have been observed during the 20th and 21st centuries. The results indicate little likelihood of a tsunami origin for these coarse-grained layers, although historical tsunami events are recorded in this region. These periods of surge events seem to coincide with the coldest periods in Europe during the late Holocene, suggesting a control by a climatic mechanism for periods of increased storm activity. Spectral analyses performed on the sand percentage revealed four major periodicities of 1228 ± 327, 732 ± 80, 562 ± 58, and 319 ± 16 years. Amongst the well-known proxies that have revealed a millennial-scale climate variability during the Holocene, the ice-rafted debris (IRD) indices in the North Atlantic developed by Bond et al. (1997, 2001) present a cyclicity of 1470 ± 500 years, which matches the 1228 ± 327-year periodicity evidenced in the Mar Menor, considering the respective uncertainties in the periodicities. Thus, an in-phase storm activity in the western Mediterranean is found with the coldest periods in Europe and with the North Atlantic thermohaline circulation. However, further investigations, such as additional coring and high-resolution coastal imagery, are needed to better constrain the main cause of these multiple events.</description>
<date>2016</date>
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