Fig. 1: Mid-summer Tibetan Plateau (TP) precipitation and its relationship with Siberian wildfires.
From: Arctic wildfire carbon emissions strongly influenced by midsummer Tibetan Plateau precipitation
a Leading empirical orthogonal function mode (EOF1) of TP precipitation in mid-summer from 2001 to 2023 for the CRU dataset. b Annually averaged Active wildfire frequency (AFF, in unit of ignition point numbers) over East Asia in mid-summer from 2001 to 2023. c Percentage of AFF in mid-summer compared with the annual AFF. d Linear regression of mid-summer AFF onto the first principal component (PC1) of TP precipitation. The dotted areas are significant at the 95% confidence level. e Regional averaged AFF in central Siberia (CSB, black line) and eastern Siberia (ESB, red line). f Difference in AFF between CSB and ESB (AFDI, shown as red line) and PC1 of TP precipitation (black line). Black boxes denote the CSB and ESB domains respectively.
