Atlantic multi-decadal oscillation covaries with Agulhas leakage
Nature Communications2015Vol. 6(1), pp. 10082–10082
Citations Over TimeTop 10% of 2015 papers
Arne Biastoch, Jonathan V. Durgadoo, Adele K. Morrison, Erik van Sebille, Wilbert Weijer, Stephen M. Griffies
Abstract
The interoceanic transfer of seawater between the Indian Ocean and the Atlantic, 'Agulhas leakage', forms a choke point for the overturning circulation in the global ocean. Here, by combining output from a series of high-resolution ocean and climate models with in situ and satellite observations, we construct a time series of Agulhas leakage for the period 1870-2014. The time series demonstrates the impact of Southern Hemisphere westerlies on decadal timescales. Agulhas leakage shows a correlation with the Atlantic Multi-decadal Oscillation on multi-decadal timescales; the former leading by 15 years. This is relevant for climate in the North Atlantic.
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