Ocean Science
Ocean Science
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Articles | Volume 22, issue 3
Articles | Volume 22, issue 3
https://doi.org/10.5194/os-22-1965-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-22-1965-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 3
Research article
 | 
23 Jun 2026
Research article |  | 23 Jun 2026

Interaction of AMOC and intrinsic multidecadal Southern Ocean variability

Emma J. V. Smolders, René M. van Westen, and Henk A. Dijkstra

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Short summary
The Southern Ocean shows strong natural variability on multi-decadal time scales, known as the Southern Ocean Mode (SOM). Using high-resolution ocean simulations, we show that a collapse of the Atlantic Meridional Overturning Circulation (AMOC) strongly weakens the SOM. This weakening is linked to changes in ocean density, a slowdown of the Antarctic Circumpolar Current, and shifts in deep convection across the Southern Ocean.
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