Effect of summer mean SST anomalies on the interannual variability of the 10–25-day zonal oscillation of the Western Pacific Subtropical High
This study demonstrates that summer mean sea surface temperature anomalies, specifically tropical central-eastern Pacific warming during El Niño development and tropical Indian Ocean cooling during La Niña decay, enhance the interannual variability of the 10–25-day zonal oscillation of the Western Pacific Subtropical High by increasing lower-tropospheric humidity and strengthening downward dry advection, with the Indian Ocean cooling mechanism causing a distinct northward shift in the oscillation's movement.