Fig. 1
From: A positive atmospheric feedback on the North Atlantic warming hole

Direct DJF surface response comparison between Karnauskas et al. using the (a) ECHAM4.6 model (2.8\(^\circ\)) and the (b) CESM2 model (1\(^\circ\)). Also included are (c) the ERA5 observed DJF in units per 83Â years with (b) the positive SST trends omitted. Sea level pressure (contoured every 0.25Â mb, zero omitted, negative dashed) and surface wind vector anomalies are shown (>Â 0.5Â m/s) and scaled by 5, as well as the SST forcing (\(^\circ\)C) used in each experiment (colors).