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 APRIL 2012
 
 FIGURE E15.
                   Southern Hemisphere mean
                 and anomalous 500-hPa geopotential height (CDAS/Reanalysis). Mean
                 heights are denoted by solid contours drawn at an interval of 8 dam.
                 Anomaly contour interval is indicated by shading. Anomalies are
                 calculated as departures from the 1981-2010 base period monthly means.
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