Fig. 2: Circulation anomalies related to Tibetan Plateau (TP) precipitation and relationships between the East Asia jet stream and Arctic wildfires.
From: Arctic wildfire carbon emissions strongly influenced by midsummer Tibetan Plateau precipitation
a Linear regression of mid-summer horizontal winds (vectors, unit: m s−1) and geopotential height (shading, unit: gpm) at 200 hPa onto the first principal component (PC1) of TP precipitation. The dotted areas are significant at the 95% confidence level. Relationship between the “normalized difference of active fire frequency between central Siberia (CSB) and eastern Siberia (ESB)” and jet stream (b) northern edge (unit: degree), c width (unit: degree), d intensity (unit: m s−1), and e displacement (unit: degree). The shaded area in (b‒e) represents the uncertainty range, corresponding to one standard deviation.
