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Bidecadal North Atlantic ocean circulation variability controlled by timing of volcanic eruptions

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSWINGEDOUW, Didier
hal.structure.identifierLaboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques [LOCEAN]
dc.contributor.authorORTEGA, Pablo
hal.structure.identifierProcessus de la variabilité climatique tropicale et impacts [PARVATI]
dc.contributor.authorMIGNOT, Juliette
hal.structure.identifierProcessus de la variabilité climatique tropicale et impacts [PARVATI]
dc.contributor.authorGUILYARDI, Éric
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierGlaces et Continents, Climats et Isotopes Stables [GLACCIOS]
dc.contributor.authorMASSON-DELMOTTE, Valérie
hal.structure.identifierSchool of Ocean Sciences [Menai Bridge]
dc.contributor.authorBUTLER, Paul G.
hal.structure.identifierProcessus de la variabilité climatique tropicale et impacts [PARVATI]
dc.contributor.authorKHODRI, Myriam
hal.structure.identifierCentre national de recherches météorologiques [CNRM]
dc.contributor.authorSÉFÉRIAN, Roland
dc.date.accessioned2024-06-17T12:20:35Z
dc.date.available2024-06-17T12:20:35Z
dc.date.issued2015-03-30
dc.identifier.issn2041-1723en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200502
dc.description.abstractEnWhile bidecadal climate variability has been evidenced in several North Atlantic paleoclimaterecords, its drivers remain poorly understood. Here we show that the subset of CMIP5historical climate simulations that produce such bidecadal variability exhibits a robustsynchronization, with a maximum in Atlantic Meridional Overturning Circulation (AMOC) 15years after the 1963 Agung eruption. The mechanisms at play involve salinity advection fromthe Arctic and explain the timing of Great Salinity Anomalies observed in the 1970s and the1990s. Simulations, as well as Greenland and Iceland paleoclimate records, indicate thatcoherent bidecadal cycles were excited following five Agung-like volcanic eruptions of the lastmillennium. Climate simulations and a conceptual model reveal that destructive interferencecaused by the Pinatubo 1991 eruption may have damped the observed decreasing trend of theAMOC in the 2000s. Our results imply a long-lasting climatic impact and predictabilityfollowing the next Agung-like eruption.
dc.description.sponsorshipLabEx Institut Pierre Simon Laplace (IPSL): Understand climate and anticipate future changes - ANR-10-LABX-0018en_US
dc.language.isoENen_US
dc.title.enBidecadal North Atlantic ocean circulation variability controlled by timing of volcanic eruptions
dc.typeArticle de revueen_US
dc.identifier.doi10.1038/ncomms7545en_US
dc.subject.halPhysique [physics]/Physique [physics]/Géophysique [physics.geo-ph]en_US
bordeaux.journalNature Communicationsen_US
bordeaux.page6545en_US
bordeaux.volume6en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamPALEOen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-01176410
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Communications&rft.date=2015-03-30&rft.volume=6&rft.spage=6545&rft.epage=6545&rft.eissn=2041-1723&rft.issn=2041-1723&rft.au=SWINGEDOUW,%20Didier&ORTEGA,%20Pablo&MIGNOT,%20Juliette&GUILYARDI,%20%C3%89ric&MASSON-DELMOTTE,%20Val%C3%A9rie&rft.genre=article


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