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es ack n, eoscie 3; acc he L lanti Th depe ptur ar, a Eve present-day circulation can settle into a stable ‘off ’ mode, whereas the glacial THC was mono-stable. Mono-stability may serve as an Clark et al., 2002). The concept of THC fluctuations results suggest that the THC is highly sensitive to cha...

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Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.491.5810
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Summary:es ack n, eoscie 3; acc he L lanti Th depe ptur ar, a Eve present-day circulation can settle into a stable ‘off ’ mode, whereas the glacial THC was mono-stable. Mono-stability may serve as an Clark et al., 2002). The concept of THC fluctuations results suggest that the THC is highly sensitive to changes in the North Atlantic freshwater budget, such that anomalous freshwater inputs can trigger a collapse state for the spatial pattern of sea surface temperature tempo-spatial signature in the Atlantic Ocean can only be simulated by perturbing a glacial state of the ocean. ARTICLE IN PRESSof the circulation, thereby causing an abrupt tempera-2. Glacial climate simulations with an AGCM We employ three different SST reconstructions for the