Fig. 4: Relationships between the Pacific Walker Circulation and the AMV. | npj Climate and Atmospheric Science

Fig. 4: Relationships between the Pacific Walker Circulation and the AMV.

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

Fig. 4

Decadal Pacific Walker circulation anomalies for SST+ and SST- ensembles for the SST-restoring simulations. Also shown are the equivalent for the SST+ and SST- periods from the free-running historical and piControl CMIP6 simulations. Each dot indicates a single decadal period from one simulation, the darker shading indicates the interquartile range of the distributions and the circles with the “plus" and “minus" signs show the ensemble mean anomalies for the SST+ and SST- ensemble simulations, respectively. The circles surrounding the “plus" and “minus" signs are black and emboldened when the difference in the ensemble mean are significantly different at the 95% level based on a t-test. The equivalent data points are also shown for two observational datasets, 20CR and HadSLP2, with each decade shown by a cross.

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