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. 2022 Jul 4;13:3851. doi: 10.1038/s41467-022-31432-y

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© The Author(s) 2022, corrected publication 2023

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Fig. 5 — a Explained variance (R²) per grid point of heatwave cumulative intensity based on linear regression on double jet persistence. Statistically significant coefficients (p < 0.05) are marked with black dots. b Scatter plots of heatwave cumulative intensity anomalies aggregated over all land grid points of the extended European domain (as seen in panel a and in the red dashed box of Fig. 1a, b) and double jet persistence. A linear fit (in red) and its confidence interval (dashed lines for the 5th and 95th percentiles obtained from 1000 bootstraps), R² (with 5th and 95th interval percentiles obtained from 1000 bootstraps in brackets), and p-values are shown on the top left of each plot. c As for b but with heatwave cumulative intensity aggregated only over land grid points with statistically significant coefficients in western Europe (dotted points in panel a within the region included in the dashed red box: 37–55˚N and 9˚W–14˚E). The linear trend of the time series was removed before the regression was applied in all cases.