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| Titel |
Direct north-south synchronization of abrupt climate change record in ice cores using Beryllium 10 |
| VerfasserIn |
G. M. Raisbeck, F. Yiou, J. Jouzel, T. F. Stocker |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 3, no. 3 ; Nr. 3, no. 3 (2007-09-07), S.541-547 |
| Datensatznummer |
250001080
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| Publikation (Nr.) |
 copernicus.org/cp-3-541-2007.pdf |
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| Zusammenfassung |
| 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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