Research Article

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

Figure 1

Annual mean of the regional HC in the period 1996–2011 over (a) South America averaged between 80°W and 45°W (HCSA) and (b) Atlantic Ocean averaged between 38°W and 10°E (HCAO). Vertical circulations are described by the vertical velocities (Pa s−1) and the divergent meridional winds (m s−1) based on the Era-Interim reanalysis. The vertical velocity has been multiplied by −100. The color scale represents the vector’s magnitude.
(a)
(b)