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HOME > Monitoring and Data > Monitoring Weather & Climate > Blocking > Background > North Pacific
 
 
Atmospheric Blocking Illustration
Characteristics of Atmospheric Blocking

  • Splitting of westerly flow into two separate branches over a considerable longitudinal extent
  • Easterly flow to the south of the blocking ridge
  • Pronounced meridional flow both upstream and downstream of blocking ridge
  • Presence of deep troughs both upstream and downstream of blocking ridge

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Page last modified: January 3, 2006
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