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Publication Date
10 December 2015

Atlantic Multi-Decadal Oscillation Covaries with Agulhas Leakage



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.

“Atlantic Multi-Decadal Oscillation Covaries With Agulhas Leakage”. 2015. Nature Communications 6: 10082. doi:10.1038/ncomms10082.
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