Climate Prediction Center - Monitoring & Data: Atmospheric Blocking

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HOME > Monitoring and Data > Monitoring Weather & Climate > Blocking > Background > Southern Hemisphere Blocking Climatology

Using the blocking index of Tibaldi and Molteni (1990) we can consider the frequency of "blocked days" for each of the four traditional seasons (DJF, MAM, JJA, SON) for the southern hemisphere for the period 1979 to 2000. The results come from the NCEP/NCAR reanalysis.


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