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dc.rights.licenseopenen_US
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.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorSTEEN-LARSEN, H. C.
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
dc.contributor.authorORTEGA, P
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSWINGEDOUW, Didier
hal.structure.identifierCentre for Ice and Climate [Copenhagen]
dc.contributor.authorPOPP, T
hal.structure.identifierCentre for Ice and Climate [Copenhagen]
dc.contributor.authorVINTHER, B.M.
hal.structure.identifierAbteilung Klinische Sozialmedizin, Berufs- und Umweltdermatologie
dc.contributor.authorOERTER, H
hal.structure.identifierInstitute of Science, University of Reykjavik, Dunhaga 3, Reykjavik 107, Iceland
dc.contributor.authorSVEINBJÖRNSDOTTIR, A. E.
hal.structure.identifierGeological Survey of Denmark and Greenland [GEUS]
dc.contributor.authorGUDLAUGSDOTTIR, H
hal.structure.identifierGeological Survey of Denmark and Greenland [GEUS]
dc.contributor.authorBOX, J.E
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.authorFALOURD, S
hal.structure.identifierDépartement de Géographie
dc.contributor.authorFETTWEIS, X
hal.structure.identifierLaboratoire de glaciologie et géophysique de l'environnement [LGGE]
dc.contributor.authorGALLÉE, H
hal.structure.identifierLa Rochelle Université [ULR]
dc.contributor.authorGARNIER, E.
hal.structure.identifierCentre for Ice and Climate [Copenhagen]
dc.contributor.authorGKINIS, V
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.authorJOUZEL, J
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.authorLANDAIS, A.
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.authorMINSTER, B
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPARADIS, N
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.authorORSI, A
hal.structure.identifierLaboratoire de Météorologie Dynamique (UMR 8539) [LMD]
dc.contributor.authorRISI, C
hal.structure.identifierAlfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine [AWI]
dc.contributor.authorWERNER, M
hal.structure.identifierInstitute of Arctic Alpine Research [University of Colorado Boulder] [INSTAAR]
dc.contributor.authorWHITE, J.W.C.
dc.date.accessioned2024-05-29T13:15:00Z
dc.date.available2024-05-29T13:15:00Z
dc.date.issued2015-08-06
dc.identifier.issn1994-0424en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200145
dc.description.abstractEnCombined records of snow accumulation rate, δ 18 O and deuterium excess were produced from several shallow ice cores and snow pits at NEEM (North Greenland Eemian Ice Drilling), covering the period from 1724 to 2007. They are used to investigate recent climate variability and characterise the isotope–temperature relationship. We find that NEEM records are only weakly affected by inter-annual changes in the North Atlantic Oscillation. Decadal δ 18 O and accumulation variability is related to North Atlantic sea surface temperature and is enhanced at the beginning of the 19th century. No long-term trend is observed in the accumulation record. By contrast, NEEM δ 18 O shows multidecadal increasing trends in the late 19th century and since the 1980s. The strongest annual positive δ 18 O values are recorded at NEEM in 1928 and 2010, while maximum accumulation occurs in 1933. The last decade is the most enriched in δ 18 O (warmest), while the 11-year periods with the strongest depletion (coldest) are depicted at NEEM in 1815–1825 and 1836–1846, which are also the driest 11-year periods. The NEEM accumulation and δ 18 O records are strongly correlated with outputs from atmospheric models, nudged to atmospheric reanalyses. Best performance is observed for ERA reanalyses. Gridded temperature reconstructions, instrumental data and model outputs at NEEM are used to estimate the multidecadal accumulation–temperature and δ 18 O– temperature relationships for the strong warming period in 1979–2007. The accumulation sensitivity to temperature is estimated at 11 ± 2 % • C −1 and the δ 18 O–temperature slope at 1.1 ± 0.2 ‰ • C −1 , about twice as large as previously used to estimate last interglacial temperature change from the bottom part of the NEEM deep ice core. Published by Copernicus Publications on behalf of the European Geosciences Union. 1482 V. Masson-Delmotte et al.: Recent changes in northwest Greenland climate Figure 1. Map of Greenland showing the position of ice core records (red) and meteorological stations (green) used to establish a SW Greenland instrumental temperature record. The grey/white shading indicates elevation (source: NOAA/GLOBE, http://www. ngdc.noaa.gov/mgg/topo/globe.html).
dc.language.isoENen_US
dc.title.enRecent changes in north-west Greenland climate documented by NEEM shallow ice core data and simulations, and implications for past-temperature reconstructions
dc.typeArticle de revueen_US
dc.identifier.doi10.5194/tc-9-1481-2015en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalThe Cryosphereen_US
bordeaux.page1481-1504en_US
bordeaux.volume9en_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.identifierinsu-01275292
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccCC BYen_US
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