Fig. 1: Lead-lag relationship between the TWP and SWP.
From: Cross-hemispheric SST propagation enhances the predictability of tropical western Pacific climate
The correlations of the SON TWP (green box in the figure, 5°S–15°N, 115°E–155°E) SST index with the preceding (a) MAM and (c) DJF SST. b and d are the corresponding time series of Southwest Pacific SST index and Indian Ocean SST index for the period 1979–2019. They are defined as the weighted average of SSTs in the regions of (35°S–15°S, 150°E–170°E) and (5°S–10°N, 50°E–90°E), respectively. The dotted shading indicates the correlation is significant at the 95% confidence level.
