Recent Changes in the Annual Mean Regional Hadley Circulation and Their Impacts on South America

Figure 10

Correlation between the HCSA annual intensity index and the annual mean temperature (K) at 850 hPa in the period 1996–2011 based on the (a) Era-Interim reanalysis and (b) RegCM4 simulation. Contour intervals are 0.2 and values above 0.5 are shaded and are statistically significant at 95% confidence level. For clarity purposes, it should be noted that the HCSA annual intensity index has been multiplied by (−1).

(a)

(b)