Fig. 4: Spatial distributions of multi-year mean heatwave metrics from 2020 to 2100.
From: Unstable permafrost regions experience more severe heatwaves in a warming climate

The spatial distributions of a–h heatwave days (days), i–p average intensity (°C), and q–x cumulative intensity (°C day) during summer and winter season under SSP126, SSP245, SSP370, and SSP585 scenarios. Inset boxes represent the probability distributions of heatwave metrics during the summer (red) and winter (blue) seasons, the significance of the difference between them are indicated by the p-value. The dash lines represent the mean values of heatwave metrics which are shown on the spatial distribution maps (Mean ± SD).