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

Figure 15

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)