Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts
| العنوان: | Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
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| المؤلفون: | Amaelle Landais, Valérie Masson-Delmotte, Alexandre Cauquoin, Jean Jouzel, Bénédicte Minster, A. Grisart, Elise Fourré, Françoise Vimeux, I. Crotti, Thomas Extier, Ryu Uemura, Barbara Stenni, E. Selmo, Martin Werner |
| المساهمون: | Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), ANR-19-CE27-0011,NEANDROOTS,450-350 ka : un seuil dans l'évolution humaine ? Comprendre les racines du monde néandertalien(2019), Glaces et Continents, Climats et Isotopes Stables (GLACCIOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Department of Environmental Sciences, Informatics and Statistics [Venezia], University of Ca’ Foscari [Venice, Italy], Institute of Industrial Science (IIS), The University of Tokyo (UTokyo), Department of Chemistry, Life Sciences and Environmental Sustainability [Parma], Università degli studi di Parma = University of Parma (UNIPR), Environnements et Paléoenvironnements OCéaniques (EPOC), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Alfred Wegener Institute for Polar and Marine Research (AWI), Hydrosciences Montpellier (HSM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Graduate School of Environmental Studies [Nagoya], Nagoya University, This work is a contribution to EPICA, a joint European Science Foundation/European Commission (EU) scientific programme, funded by the European Union and by national contributions from Belgium, Denmark, France, Germany, Italy, the Netherlands, Norway, Sweden, Switzerland and the United Kingdom. The main logistic support was provided by Institut Polaire Français Paul-Emile Victor and Programma Nazionale Ricerche in Antartide (at Dome C) and Alfred Wegener Institute (at Dronning Maud Land). We thank the Dome C logistics teams and the drilling team that made the science possible., European Project: 0817493(2008) |
| المصدر: | Nature Geoscience Nature Geoscience, Nature Publishing Group, 2021, 18 p. ⟨10.1038/s41561-021-00856-4⟩ Nature Geoscience, 2021, 14, pp.918-923. ⟨10.1038/s41561-021-00856-4⟩ Nature Geosciences |
| بيانات النشر: | HAL CCSD, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Cryospheric science, geography, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, Oceanic climate, 010502 geochemistry & geophysics, Atmospheric sciences, Palaeoclimate, 01 natural sciences, Sea surface temperature, Ice core, 13. Climate action, Settore GEO/08 - Geochimica e Vulcanologia, [SDU]Sciences of the Universe [physics], Interglacial, Sea ice, General Earth and Planetary Sciences, 14. Life underwater, Glacial period, Quaternary, Global cooling, Geology, 0105 earth and related environmental sciences |
| الوصف: | Succession of cold glacials and warm interglacials during the Quaternary results from large global climate responses to variable orbital configurations, accompanied by fluctuating greenhouse gas concentrations. Despite the influences of sea ice and atmospheric and ocean circulations in the Southern Ocean on atmospheric CO2 concentrations and climate, past changes in this region remain poorly documented. Here, we present the 800 ka deuterium excess record from the East Antarctica EPICA Dome C ice core, tracking sea surface temperature in evaporative regions of the Indian sector of the Southern Ocean from which moisture precipitated in East Antarctica is derived. We find that low obliquity leads to surface warming in evaporative moisture source regions during each glacial inception, although this relative temperature increase is counterbalanced by global cooling during glacial maxima. Links between the two regions during interglacials depends on the existence of a temperature maximum at the interglacial onset. In its absence, temperature maxima in the evaporative moisture source regions and in East Antarctica were synchronous. For the other interglacials, temperature maxima in the source areas lag early local temperature maxima by several thousand years, probably because of a change in the position of the evaporative source areas. Interglacial temperature coupling between East Antarctica and the Southern Ocean was set by the position of moisture source regions, according to an 800,000-year-long deuterium-excess ice-core record from East Antarctica. |
| وصف الملف: | text |
| اللغة: | English |
| تدمد: | 1752-0894 |
| DOI: | 10.1038/s41561-021-00856-4⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3880114dae88722ed4682097e5f6b9 https://hal-insu.archives-ouvertes.fr/insu-03462703 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....cc3880114dae88722ed4682097e5f6b9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17520894 |
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| DOI: | 10.1038/s41561-021-00856-4⟩ |