Ocean tides and Heinrich events

Brian K. Arbic (), Douglas R. MacAyeal, Jerry X. Mitrovica and Glenn A. Milne
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Brian K. Arbic: Program in Atmospheric and Oceanic Sciences, Princeton University
Douglas R. MacAyeal: University of Chicago
Jerry X. Mitrovica: University of Toronto
Glenn A. Milne: University of Durham, Science Laboratories

Nature, 2004, vol. 432, issue 7016, 460-460

Abstract: Abstract Climate varied enormously over the most recent ice age1 — for example, large pulses of ice-rafted debris2, originating mainly from the Labrador Sea3, were deposited into the North Atlantic at roughly 7,000-year intervals, with global climatic implications3. Here we show that ocean tides within the Labrador Sea were exceptionally large over the period spanning these huge, abrupt ice movements, which are known as Heinrich events. We propose that tides played a catalytic role in liberating iceberg armadas during that time.

Date: 2004
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DOI: 10.1038/432460a

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