Research Article

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

Figure 19

Annual mean sea surface temperature (K) anomaly for HCSA poleward expansion cases in the period 1996–2011 based on the HADISST dataset. Contour intervals are 0.1 K with stippling indicating regions statistically significant above the 95% confidence level as determined by two-tailed Student’s -test.