Fig. 5: Sole effect of blocking decrease dominated by the change in heatwave–blocking relation. | npj Climate and Atmospheric Science

Fig. 5: Sole effect of blocking decrease dominated by the change in heatwave–blocking relation.

From: Heatwave–blocking relation change likely dominates over decrease in blocking frequency under global warming

Fig. 5

a Scatter plot of heatwave frequency versus optimized blocking index, both averaged over Europe (land points in 40°N–60°N, 10°W–30°E) for historical (1966–2005, yellow) and SSP585 (2060–2099, blue), in the NorESM2-LM model. Also shown are the mean blocking frequencies (vertical lines) and linear regression lines. Bold line segments show how heatwave changes are contributed by blocking changes (blue) and heatwave–blocking relation change (red). b, c As a, but for 13 CMIP6 models over Europe (b) and Greenland (c, land points in 60°N–84°N, 52°W–27°W). Individual plots for 13 models are in Supplementary Figs. 1 and 2.

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