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Science. 1998 May 1;280(5364):728-30.

Local orbital forcing of antarctic climate change during the last interglacial

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Department of Oceanography, Texas A&M University, College Station, TX 77843, USA.


During the last interglacial, Antarctic climate changed before that of the Northern Hemisphere. Large local changes in precession forcing could have produced this pattern if there were a rectified response in sea ice cover. Results from a coupled sea ice-ocean general circulation model supported this hypothesis when it was tested for three intervals around the last interglacial. Such a mechanism may play an important role in contributing to phase offsets between Northern and Southern Hemisphere climate change for other time intervals.

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