Fig. 5: Examining the role of the North Atlantic in controlling global SST trends over recent decades. | npj Climate and Atmospheric Science

Fig. 5: Examining the role of the North Atlantic in controlling global SST trends over recent decades.

From: Challenges with interpreting the impact of Atlantic Multidecadal Variability using SST-restoring experiments

Fig. 5

SST trend over the period 1979-2012 in (a) observed SSTs from HadISST; (b) Historical IPSL ensemble mean; (c) North Atlantic IPSL pacemaker ensemble mean; (d) Tropical Pacific pacemaker ensemble mean; (e) Scaled IPSL SST-relaxation difference (i.e. scaled version of Fig. 1a). (f) Subtropical SST anomaly evolution from the SST-restoring toy model discussed in the text (examining the trend and effective trend shown in panels (c) & (e)), shown for an idealised AMV SST-relaxation simulation, North Atlantic pacemaker, along with the ensemble mean subtropical SST anomaly from the IPSL historical simulation. (g) Restoring heat-flux evolution for the toy model simulations shown in (f); the dashed line shows the toy model pacemaker trend.

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