Eight glacial cycles from an Antarctic ice core
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 p...
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London, Springer Science and Business Media LLC
2022
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ftinfoscience:oai:infoscience.epfl.ch:298313 2023-05-15T13:43:17+02:00 Eight glacial cycles from an Antarctic ice core Augustin, L. Barbante, C. Barnes, P. R. F. Barnola, J. M. Bigler, M. Castellano, E. Cattani, O. Chappellaz, J. DahlJensen, D. Delmonte, B. Dreyfus, G. Durand, G. Falourd, S. Fischer, H. Fluckiger, J. Hansson, M. E. Huybrechts, P. Jugie, R. Johnsen, S. J. Jouzel, J. Kaufmann, P. Kipfstuhl, J. Lambert, F. Lipenkov, V. Y. Littot, G. V. 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. 2022-11-23T16:11:19Z https://doi.org/10.1038/nature02599 http://infoscience.epfl.ch/record/298313 unknown London, Springer Science and Business Media LLC doi:10.1038/nature02599 isi:000221912600031 http://infoscience.epfl.ch/record/298313 http://infoscience.epfl.ch/record/298313 Text 2022 ftinfoscience https://doi.org/10.1038/nature02599 2023-02-13T23:12:29Z 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. Text Antarc* Antarctic Antarctica ice core EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Antarctic The Antarctic Nature 429 6992 623 628 |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
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unknown |
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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. |
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Augustin, L. Barbante, C. Barnes, P. R. F. Barnola, J. M. Bigler, M. Castellano, E. Cattani, O. Chappellaz, J. DahlJensen, D. Delmonte, B. Dreyfus, G. Durand, G. Falourd, S. Fischer, H. Fluckiger, J. Hansson, M. E. Huybrechts, P. Jugie, R. Johnsen, S. J. Jouzel, J. Kaufmann, P. Kipfstuhl, J. Lambert, F. Lipenkov, V. Y. Littot, G. V. 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. |
spellingShingle |
Augustin, L. Barbante, C. Barnes, P. R. F. Barnola, J. M. Bigler, M. Castellano, E. Cattani, O. Chappellaz, J. DahlJensen, D. Delmonte, B. Dreyfus, G. Durand, G. Falourd, S. Fischer, H. Fluckiger, J. Hansson, M. E. Huybrechts, P. Jugie, R. Johnsen, S. J. Jouzel, J. Kaufmann, P. Kipfstuhl, J. Lambert, F. Lipenkov, V. Y. Littot, G. V. 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. Eight glacial cycles from an Antarctic ice core |
author_facet |
Augustin, L. Barbante, C. Barnes, P. R. F. Barnola, J. M. Bigler, M. Castellano, E. Cattani, O. Chappellaz, J. DahlJensen, D. Delmonte, B. Dreyfus, G. Durand, G. Falourd, S. Fischer, H. Fluckiger, J. Hansson, M. E. Huybrechts, P. Jugie, R. Johnsen, S. J. Jouzel, J. Kaufmann, P. Kipfstuhl, J. Lambert, F. Lipenkov, V. Y. Littot, G. V. 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. |
author_sort |
Augustin, L. |
title |
Eight glacial cycles from an Antarctic ice core |
title_short |
Eight glacial cycles from an Antarctic ice core |
title_full |
Eight glacial cycles from an Antarctic ice core |
title_fullStr |
Eight glacial cycles from an Antarctic ice core |
title_full_unstemmed |
Eight glacial cycles from an Antarctic ice core |
title_sort |
eight glacial cycles from an antarctic ice core |
publisher |
London, Springer Science and Business Media LLC |
publishDate |
2022 |
url |
https://doi.org/10.1038/nature02599 http://infoscience.epfl.ch/record/298313 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica ice core |
op_source |
http://infoscience.epfl.ch/record/298313 |
op_relation |
doi:10.1038/nature02599 isi:000221912600031 http://infoscience.epfl.ch/record/298313 |
op_doi |
https://doi.org/10.1038/nature02599 |
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Nature |
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429 |
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6992 |
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623 |
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628 |
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1766186809900924928 |