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Relative Timing of Deglacial Climate Events in Antarctica and Greenland


Morgan, VI and Delmotte, M and van Ommen, TD and Jouzel, J and Chappellaz, J and Woon, S and Masson-Delmotte, V and Raynaud, D, Relative Timing of Deglacial Climate Events in Antarctica and Greenland, Science, 297, (5588) pp. 1862-1864. ISSN 0036-8075 (2002) [Refereed Article]

DOI: doi:10.1126/science.1074257


The last deglaciation was marked by large, hemispheric, millennial-scale climate variations: the Bølling-Allerød and Younger Dryas periods in the north, and the Antarctic Cold Reversal in the south. A chronology from the high-accumulation Law Dome East Antarctic ice core constrains the relative timing of these two events and provides strong evidence that the cooling at the start of the Antarctic Cold Reversal did not follow the abrupt warming during the northern Boiling transition around 14,500 years ago. This result suggests that southern changes are not a direct response to abrupt changes in North Atlantic thermohaline circulation, as is assumed in the conventional picture of a hemispheric temperature seesaw.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Morgan, VI (Mr Vincent Morgan)
UTAS Author:van Ommen, TD (Dr Tas van Ommen)
UTAS Author:Woon, S (Ms Suenor Woon)
ID Code:26206
Year Published:2002
Web of Science® Times Cited:73
Deposited By:CRC-Antarctic and Southern Ocean Environm
Deposited On:2003-05-21
Last Modified:2014-05-28

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