Atlantic Multi-Decadal Oscillation Covaries with Agulhas Leakage

TitleAtlantic Multi-Decadal Oscillation Covaries with Agulhas Leakage
Publication TypeJournal Article
Year of Publication2015
JournalNature Communications
Volume6
Pages10082
Date Published12/2015
Abstract / Summary

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. 

DOI10.1038/ncomms10082
Journal: Nature Communications
Year of Publication: 2015
Volume: 6
Pages: 10082
Date Published: 12/2015

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. 

DOI: 10.1038/ncomms10082
Citation:
2015.  "Atlantic Multi-Decadal Oscillation Covaries with Agulhas Leakage."  Nature Communications 6: 10082.  https://doi.org/10.1038/ncomms10082.