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

Figure 7

Annual mean geopotential height (m) anomaly for HCSA strong cases at 500 hPa in the period 1996–2011 based on the (a) Era-Interim reanalysis and (b) RegCM4 simulation. Contour intervals are 2 m and significant values above 90% confidence level from two-tailed Student’s -test are shaded.

(a)

(b)