http://www.cnr.it/ontology/cnr/individuo/prodotto/ID20167
Eight glacial cycles from an Antarctic ice core (Articolo in rivista)
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- Eight glacial cycles from an Antarctic ice core (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
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- Augustin; L.; Barbante; C.; Barnes; P.R.F.; Barnola; J.M.; Bigler; M.; Castellano; E.; Cattani; O.; Chappellaz; J.; Dahl-Jensen; D.; Delmonte; B.; Dreyfus; G.; Durand; G.; Falourd; S.; Fischer; H.; Fluckiger; J.; Hansson; M.E.; Huybrechts; P.; Jugie; G.; Johnsen; S.J.; Jouzel; J.; Kaufmann; P.; Kipfstuhl; J.; Lambert; F.; Lipenkov; V.Y.; Littot; G.C.; Longinelli; A.; Lorrain; R.; Maggi; V.; Masson-Delmotte; V.; Miller; H.; Mulvaney; R.; Oerlemans; J.; Oerter; H.; Orombelli; G.; Parrenin; F.; Peel; D.A.; Petit; J.-R.; Raynaud; D.; Ritz; C.; Ruth; U.; Schwander; J.; Siegenthaler; U.; Souchez; R.; Stauffer; B.; Steffensen; J.P.; Stenni; B.; Stocker; T.F.; Tabacco; I.E.; Udisti; R.; van de Wal; R.S.W.; van den Broeke; M.; Weiss; J.; Wilhelms; F.; Winther; J.-G.; Wolff; E.W.; Zucchelli; (literal)
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- ISI Web of Science (WOS) (literal)
- Science direct - Elsevier (literal)
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- 1, Laboratoire de Glaciologie et G ?eophysique de l'Environnement (CNRS), BP 96, 38402 St Martin d'H`eres Cedex, France; 2, Environmental Sciences Department, University of Venice, Calle Larga S. Marta, 2137, I-30123 Venice, Italy; 3, British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK; 4, Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland; 5, Department of Chemistry--Analytical Chemistry Section, Scientific Pole--University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy; 6, Institut Pierre Simon Laplace/Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS 1572, CE Saclay, Orme des Merisiers, 91191 Gif-Sur-Yvette, France; 7, Niels Bohr Institute for Astronomy, Physics and Geophysics, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark; 8, University of Milano-Bicocca, Dipartimento di Scienze Ambiente e Territorio, Piazza della Scienza 1, I-20126 Milan, Italy; 9, Alfred-Wegener-Institute for Polar- und Marine Research (AWI), Postfach 120161, D-27515 Bremerhaven, Germany; 10, Department of Physical Geography and Quaternary Geology, Stockholm University, S-106 91 Stockholm, Sweden; 11, Institut Polaire Fran ?cais-Paul Emile Victor (IPEV), BP 75, 29280 Plouzane, France; 12, Arctic and Antarctic Research Institute, 38 Beringa Street, 199397 St Petersburg, Russia; 13, Department of Earth Sciences, University of Parma, Parco Area delle Scienze 157/A, I-43100 Parma, Italy; 14, De ?partement des Sciences de la Terre et de l'Environnement, Facult ?e des Sciences, CP 160/03, Universit ?e Libre de Bruxelles, 50 avenue FD Roosevelt, B1050 Brussels, Belgium; 15, Institute for Marine and Atmospheric Research Utrecht (IMAU), Princetonplein 5, 3584 CC Utrecht, The Netherlands; 16, Department of Geological, Environmental and Marine Sciences, University of Trieste, Via E. Weiss 2, I-34127 Trieste, Italy; 17, Earth Science Department, University of Milan, Via Cicognara 7, 20129 Milano, Italy; 18, Norwegian Polar Institute, N-9296 Tromsø, Norway; 19, ENEA, CRE Casaccia, PO Box 2400, Via Anguillarese 301, 00060 S. Maria di Galleria (RM), Italy. (literal)
- Titolo
- Eight glacial cycles from an Antarctic ice core (literal)
- Abstract
- The Antarctic Vostok ice core provided compelling evidence of the nature of climate, and of climate feedbacks, over the past 420,000 years. Marine records suggest that the amplitude of climate variability was smaller before that time, but such records are often poorly resolved. Moreover, it is not possible to infer the abundance of greenhouse gases in the atmosphere from marine records. Here we report the recovery of a deep ice core from Dome C, Antarctica, that provides a climate record for the past 740,000 years. For the four most recent glacial cycles, the data agree well with the record from Vostok. The earlier period, between 740,000 and 430,000 years ago, was characterized by less pronounced warmth in interglacial periods in Antarctica, but a higher proportion of each cycle was spent in the warm mode. The transition from glacial to interglacial conditions about 430,000 years ago (Termination V) resembles the transition into the present interglacial period in terms of the magnitude of change in temperatures and greenhouse gases, but there are significant differences in the patterns of change. The interglacial stage following Termination V was exceptionally long-28,000 years compared to, for example, the 12,000 years recorded so far in the present interglacial period. Given the similarities between this earlier warm period and today, our results may imply that without human intervention, a climate similar to the present one would extend well into the future. (literal)
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