20th Century Reanalysis

Plot shows the NAO pattern with the anomalous 850mb zonal wind dipole over the eastern NH Atlantic ocean.

Options to produce plot are using the Monthly/seasonal 20th Century Plotting page: Google Earth

  • variable=zonal wind
  • level=850mb
  • January
  • use timeseries
  • NAO
  • standardized values greater than 1 sigma

Screenshot: