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A global probabilistic study of the ocean heat content low-frequency variability: Atmospheric forcing versus oceanic chaos

hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorSÉRAZIN, Guillaume
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorJAYMOND, Alexandre
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorLEROUX, Stephanie
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorPENDUFF, Thierry
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorBESSIÈRES, Laurent
hal.structure.identifierLaboratoire d'études en Géophysique et océanographie spatiales [LEGOS]
dc.contributor.authorLLOVEL, W.
hal.structure.identifierP.P. Shirshov Institute of Oceanology [SIO]
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorBARNIER, Bernard
hal.structure.identifierInstitut des Géosciences de l’Environnement [IGE]
dc.contributor.authorMOLINES, Jean-Marc
hal.structure.identifierCentre Européen de Recherche et de Formation Avancée en Calcul Scientifique [CERFACS]
dc.contributor.authorTERRAY, Laurent
dc.date.accessioned2024-04-04T02:46:45Z
dc.date.available2024-04-04T02:46:45Z
dc.date.issued2017-06-16
dc.identifier.issn0094-8276
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/191583
dc.description.abstractEnA global 1/4 ∘ ocean/sea ice 50-member ensemble simulation is used to disentangle the low-frequency imprints of the atmospherically forced oceanic variability and of the chaotic intrinsic oceanic variability (IOV) on the large-scale (10 ∘ × 10 ∘) ocean heat content (OHC) between 1980 and 2010. The IOV explains most of the interannual-to-decadal large-scale OHC variance over substantial fractions of the global ocean area that increase with depth: 9%, 22%, and 31% in the 0-700 m, 700-2000 m and 2000 m bottom layers, respectively. Such areas concern principally eddy-active regions, mostly found in the Southern Ocean and in western boundary current extensions, and also concern the subtropical gyres at intermediate and deep levels. The oceanic chaos may also induce random multidecadal fluctuations so that large-scale regional OHC trends computed on the 1980-2010 period cannot be unambiguously attributed to the atmospheric forcing in several oceanic basins at various depths. These results are likely to raise detection and attribution issues from real observations.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.title.enA global probabilistic study of the ocean heat content low-frequency variability: Atmospheric forcing versus oceanic chaos
dc.typeArticle de revue
dc.identifier.doi10.1002/2017GL073026
dc.subject.halPlanète et Univers [physics]/Océan, Atmosphère
bordeaux.journalGeophysical Research Letters
bordeaux.page5580-5589
bordeaux.volume44
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue11
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-03003527
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03003527v1
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