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Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe

dc.rights.licenseopenen_US
dc.contributor.authorNAUGHTON, F.
dc.contributor.authorCOSTAS, S.
dc.contributor.authorGOMES, S. D.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDESPRAT, Stephanie
IDREF: 088638960
dc.contributor.authorRODRIGUES, T.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSANCHEZ GONI, Maria
IDREF: 057015627
dc.contributor.authorRENSSEN, H.
dc.contributor.authorTRIGO, R.
dc.contributor.authorBRONK-RAMSEY, C.
dc.contributor.authorOLIVEIRA, D.
dc.contributor.authorSALGUEIRO, E.
dc.contributor.authorVOELKER, A. H. L.
dc.contributor.authorABRANTES, F.
dc.date.accessioned2024-06-06T08:45:35Z
dc.date.available2024-06-06T08:45:35Z
dc.date.issued2019-05-01
dc.identifier.issn0277-3791en_US
dc.identifier.urioai:crossref.org:10.1016/j.quascirev.2019.03.033
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200299
dc.description.abstractEnPaleoclimate reconstructions suggest that the complex variability within the Greenland stadial 1 (GS-1) over western Europe was governed by coupled ocean and atmospheric changes. However, few works from the North Atlantic mid-latitudes document both the GS-1 onset and its termination, which are often considered as single abrupt transition events. Here, we present a direct comparison between marine (alkenone-based sea surface temperatures) and terrestrial (pollen) data, at very high resolution (28 years mean), from the southwestern Iberian shelf record D13882. Our results reveal a rather complex climatic period with internally changing conditions. The GS-1 onset (GS-1a: 12890-12720 yr BP) is marked by a progressive cooling and drying; GS-1b (12720-12390 yr BP) is the coldest and driest phase; GS-1c (12390-12030 yr BP) is marked by a progressive warming and increase in moisture conditions; GS-1 termination (GS-1d: 12030-11770 yr BP) is marked by rapid switches between cool wet, cold dry and cool wet conditions. Although hydroclimate response was very unsteady throughout the GS-1 and in particular during its termination phase, the persistence of an open temperate and Mediterranean forest in southwestern Iberia during the entire episode suggests that at least some moisture was delivered via the Westerlies. We propose coupled ocean and atmospheric mechanisms to reproduce these scenaria. Changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) as well as variations in the North Atlantic sea-ice growth have favoured the displacement of the polar jet stream's latitudinal position and contributed to a complex spatial pattern and strength of the Westerlies across western Europe.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enCoupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe
dc.title.alternativeQuat. sci. rev.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.quascirev.2019.03.033en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalQuaternary Science Reviewsen_US
bordeaux.page108-120en_US
bordeaux.volume212en_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.sourcedissemin
hal.identifierhal-04603088
hal.version1
hal.date.transferred2024-06-06T08:45:37Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Quaternary%20Science%20Reviews&rft.date=2019-05-01&rft.volume=212&rft.spage=108-120&rft.epage=108-120&rft.eissn=0277-3791&rft.issn=0277-3791&rft.au=NAUGHTON,%20F.&COSTAS,%20S.&GOMES,%20S.%20D.&DESPRAT,%20Stephanie&RODRIGUES,%20T.&rft.genre=article


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