Fig. 4 | npj Climate and Atmospheric Science

Fig. 4

From: Evidence for a volcanic underpinning of the Atlantic multidecadal oscillation

Fig. 4

Mean annual circulation metrics and SST across the subpolar North Atlantic. a Difference in mean sea level pressure (MSLP) between Azores (30°N-40°N, 40°W-25°W) and Iceland (60°N-65°N, 45°W-30°W). b Wind speed at 850 hPa over the Labrador Sea (50°N-65°N, 60°W-40°W). c SST across the subpolar gyre region south of Greenland (50°N-60°N, 55°W-25°W). Bold lines represent 5-year averages. Note that y-axes are reversed in a and b, reflecting that pressure difference and wind speed increase as SST decreases. Observed SST from NOAA ERSST V3b. Wind and pressure from NCEP/NCAR Reanalysis

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