Fig. 3: Contributions to the NAO mean response from each node.
From: More positive and less variable North Atlantic Oscillation at high CO2 forcing

The mean NAO index (gray) is decomposed to contributions from the southern ("high''; red) and northern ("low''; blue) nodes for (a) DJF and (b) JJA. The bars show the multi model means, and error bars are 95% range from bootstrapping the model mean. The maps show the multi-model mean SLP response for DJF and JJA.