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| HAL : hal-00330765, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Climate of the Past 3, 3 (2007) 541-547 |
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| Direct north-south synchronization of abrupt climate change record in ice cores using Beryllium 10 |
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| G. M. Raisbeck1F. Yiou1J. Jouzel2T. F. Stocker3 |
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| (07/09/2007) |
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| A new, decadally resolved record of the 10Be peak at 41 kyr from the EPICA Dome C ice core (Antarctica) is used to match it with the same peak in the GRIP ice core (Greenland). This permits a direct synchronisation of the climatic variations around this time period, independent of uncertainties related to the ice age-gas age difference in ice cores. Dansgaard-Oeschger event 10 is in the period of best synchronisation and is found to be coeval with an Antarctic temperature maximum. Simulations using a thermal bipolar seesaw model agree reasonably well with the observed relative climate chronology in these two cores. They also reproduce three Antarctic warming events observed between A1 and A2. |
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| 1 : | CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse |
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| 2 : | IPSL - Institut Pierre-Simon-Laplace |
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| 3 : | Climate and Environmental Physics [Bern] |
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| Domaine | : | Planète et Univers/Interfaces continentales, environnement Planète et Univers/Sciences de la Terre |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00330765, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00330765 | |
| oai:hal.archives-ouvertes.fr:hal-00330765 | |
| Contributeur : Publication EGU | |
| Soumis le : Vendredi 7 Septembre 2007, 08:00:00 | |
| Dernière modification le : Mercredi 15 Octobre 2008, 12:02:01 | |
