Articles | Volume 15, issue 2
Research article
22 Mar 2024
Research article |  | 22 Mar 2024

Diagnosing the causes of AMOC slowdown in a coupled model: a cautionary tale

Justin Gérard and Michel Crucifix

Data sets

The RCP Greenhouse Gas Concentrations and their Extension from 1765 to 2300 ( Malte Meinshausen et al.

Model code and software

derpycode/cgenie.muffin: v0.9.771dfd8 (v0.9.771dfd8) Andy Ridgwell et al.

Short summary
We used cGENIE, a climate model, to investigate the Atlantic Meridional Overturning Circulation (AMOC) slowdown under a warming scenario. We apply a diagnostic that was used in a previous study (Levang and Schmitt, 2020) to separate the temperature from salinity contribution to this slowdown. We find that, in our model, the initial slowdown of the AMOC was driven by temperature and that salinity takes the lead for the termination of the circulation.
Final-revised paper