FIGURE E14. Southern Hemisphere mean
          and anomalous sea level pressure(CDAS/Reanalysis). Mean values are
          denoted by solid contours drawn at an interval of 4 hPa. Anomaly
          contour interval is 2 hPa with values less (greater) than -2 hPa (2
          hPa) indicated by dark (light) shading. Anomalies are calculated as
          departures from the 1979-95 base period monthly means.