Figure 4

Inter-model relationship between future projections with present-day simulations. Inter-model variations in the present-day IOD-ISMR correlation versus variations in (a) future ISMR change (units: % per °C of global warming), and in (b) grid-point future rainfall change (units: % per °C of global warming) vs grid-point rainfall correlation with the IOD. In (a), the solid black line denotes the linear regression, and symbols for models are the same as in Fig. 3, and the red vertical line represents the observed IOD-ISMR correlation in present-day climate. Areas within green contours in (b) denote regions where the correlation is statistically significant above the 95% confidence level. The statistical significance is calculated using a two-tailed Student’s t-test. The plot and map were generated by NCL version 6.3.0 (http://dx.doi.org/10.5065/D6WD3XH5).