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HOME > Monitoring and Data > Monitoring Weather & Climate > Blocking > GFS Ensemble Forecasts: Southern Hemisphere Atmospheric Blocking

In the hovmoller plots below the 500 hPa height field was smoothed using a 5 day running mean prior to calculating the blocking index. The spatial correlation coefficient between the individual forecast blocking strength and the observed blocking strength for the last 90 days is shown.

GFS Ensemble Forecasts: Northern Hemisphere Atmospheric Blocking plots. Click on image to enlarge.
(Click on image to enlarge)

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