Articles | Volume 12, issue 8
https://doi.org/10.5194/cp-12-1663-2016
https://doi.org/10.5194/cp-12-1663-2016
Research article
 | 
18 Aug 2016
Research article |  | 18 Aug 2016

Hosed vs. unhosed: interruptions of the Atlantic Meridional Overturning Circulation in a global coupled model, with and without freshwater forcing

Nicolas Brown and Eric D. Galbraith

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Short summary
An Earth system model is used to explore variability in the global impacts of AMOC disruptions. The model exhibits spontaneous AMOC oscillations under particular boundary conditions, which we compare with freshwater-forced disruptions. We find that the global impacts are similar whether the AMOC disruptions are spontaneous or forced. Freshwater forcing generally amplifies the global impacts, with tropical precipitation and the stability of polar haloclines showing particular sensitivity.