Extended Data Fig. 3: Trends of the 10 m-level zonal wind velocity and vertical velocity anomalies at 500 hPa Pacific Walker circulation indices for 1980-2020.
From: Walker circulation strengthening driven by sea surface temperature changes outside the tropics
Trend of the 10 m-level zonal wind velocity (u10) and the vertical velocity anomalies at 500 hPa (ω500) Pacific Walker circulation index for 1980-2020 in the series of experiments (a) and in the CMIP6 multi-model ensemble (b). Boxes and whiskers respectively indicate ±0.65σ and ±1.645σ ranges (where σ denotes one s.d.), corresponding to 50% and 90% ranges of a normal distribution. The model experiments include 20 members for all scenarios except HIST, AMIP, and POGA, which have 40 members, 10 members, and 10 members, respectively.
