Fig. 1: The spatial distribution of the onset times of EASM and aerosol-induced anomalies in march of EASM averaged over 1979–2014.
From: Influence of aerosol forcing on the seasonal march of East Asia summer monsoon

EASM onset times based on (a) ERA5 reanalysis, (b) Historical simulations and (c) Hist-GHG simulations, (d) differences in mean onset times between Historical and Hist-GHG simulations using the W_EASM index. The numbers in (a–c) represent the specific onset time. The numbers in the subgraph (d) indicate the specific lag time of the outbreak time due to aerosols.