Figure 3: Regional and remote wind forcing of HAI SST.

Detrended HAI coral SST (red) with two s.e. (grey shading) compared with (a) sea-level pressure off Western Australia (SLP WA, black), (b) meridional wind off Western Australia (MW WA, blue) and (c) Western Pacific zonal wind stress (WPZWS; light blue), all from twentieth century reanalysis²². Spatial correlation of HAI coral composite SST with (d) sea-level pressure with stippled black box off WA, (e) meridional wind with stippled black box off WA showing the location of meridional wind changes of importance for HAI SST and (f) zonal wind stress with stippled rectangular box, WPZWS, indicating the area where Western Pacific Zonal wind stress is highly correlated with HAI SST, all from twentieth century reanalysis for 1960–2010 averaged between January and December for 3d and e, and for July to June for 3f. Only correlations with P<0.05 are shown in colour. All time series were detrended and correlation maps computed at http://climexp.knmi.nl⁴¹.