Extended Data Fig. 3: Composited weather patterns for T1–T7 during the DJFs of 2013–2019.
From: Winter particulate pollution severity in North China driven by atmospheric teleconnections
a-bb, Composite anomalies of (a-g) U200 (units: m s−1), (h-n) Z500 (units: m), (o-u) V850 (units: m s−1), and (v-bb) pressure-longitude cross sections of the relative humidity (shadings, units: %) and temperature (contour, unit: °C) for each weather type. The gray contours in a-g are the western jet streams calculated by the DJF means of U200 from 1979 to 2018. The cross sections in v-bb are averaged over 30–40°N, and areas between the two black dashed lines denote the BTH region.
