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bobbutts

acronyms and abbreviations

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  • NAO : difference between pressure near Iceland and near Greenland.
  • +NAO : no Greenland block. Lower pressure in Greenland than Iceland. Loading pattern: http://www.cpc.ncep....o.loading.shtml
  • -NAO : Greenland block, higher pressure in Greenland than Iceland.
  • PNA : ridge vs trough in the East vs the West
  • +PNA : trough East, ridge West. Loading pattern: http://www.cpc.ncep....a.loading.shtml
  • -PNA : ridge East, trough West
  • +AO : loading pattern: http://www.cpc.ncep....o.loading.shtml
  • +EPO : favors a trough over Alaska and a ridge over the Great Lakes and Ontario. This can precede and/or accompany warmer temps in the Midwest and Northeast.
  • -EPO : Ridge over Alaska and trough over the Great Lakes and Ontario.
  • Another link that shows the 500mb and surface temp anomalies for the NAO, PNA, EPO and WPO in North America:
    http://www.esrl.noaa...casts/teleconn/

More detailed links to learning resources from NW CONNECTICUT) resources here: Post

Just a few I had for reference.I will attemt to maintain this OP with corrections and additions unless someone more qualified wants to take over

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+EPO favors a trough over Alaska and a ridge over the Great Lakes and Ontario. This can precede and/or accompany warmer temps in the Midwest and Northeast. Flip it for -EPO.

500mb anomaly correlation links... invert the temperature anomalies for the negative phase of each teleconnection:

+NAO loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.loading.shtml

+AO loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.loading.shtml

+PNA loading pattern: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/pna.loading.shtml

Another link that shows the 500mb and surface temp anomalies for the NAO, PNA, EPO and WPO in North America:

http://www.esrl.noaa.gov/psd/forecasts/teleconn/

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