Research Article
Recent Changes in the Annual Mean Regional Hadley Circulation and Their Impacts on South America
Figure 18
Correlation between the HCSA annual poleward edge time series and the annual mean temperature (K) at 925 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. Here, the poleward edge is defined as the latitude where the OLR is equal to 240 W m−2. For clarity purposes, it should be noted that the HCSA annual poleward edge time series have been multiplied by (−1).
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| (b) |