• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

RealClimate

Climate science from climate scientists...

  • Start here
  • Model-Observation Comparisons
  • Miscellaneous Climate Graphics
  • Surface temperature graphics
You are here: Home / Extras / Glossary / North Atlantic Oscillation (“NAO”)

North Atlantic Oscillation (“NAO”)

28 Nov 2004 by group

Translations: (Français)
Français

Measure of the strength of the westerlies across the North Atlantic. Originally defined by Sir Gilbert Walker in 1932 as the difference in pressure between Ponta Delgada on the Azores and Stykkisholmur in Iceland. More information on the NAO can be found here. See also Arctic Oscillation (“AO”).

Filed Under: Glossary

Primary Sidebar

Search

Search for:

Email Notification

get new posts sent to you automatically (free)
Loading

Recent Posts

  • National Climate Assessment links
  • Ocean circulation going South?
  • Melange à Trois
  • Unforced variations: July 2025
  • Unforced variations: Jun 2025
  • Predicted Arctic sea ice trends over time

Our Books

Book covers
This list of books since 2005 (in reverse chronological order) that we have been involved in, accompanied by the publisher’s official description, and some comments of independent reviewers of the work.
All Books >>

Recent Comments

  • MA Rodger on Unforced variations: July 2025
  • jgnfld on Unforced variations: July 2025
  • David on Unforced variations: July 2025
  • Paul Pukite (@whut) on Unforced variations: July 2025
  • Victor on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • Mr. Know It All on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • The Prieto Principle on Unforced variations: July 2025
  • jgnfld on Unforced variations: July 2025
  • Kevin McKinney on Unforced variations: July 2025
  • John Pollack on Unforced variations: July 2025

Footer

ABOUT

  • About
  • Translations
  • Privacy Policy
  • Contact Page
  • Login

DATA AND GRAPHICS

  • Data Sources
  • Model-Observation Comparisons
  • Surface temperature graphics
  • Miscellaneous Climate Graphics

INDEX

  • Acronym index
  • Index
  • Archives
  • Contributors

Realclimate Stats

1,371 posts

11 pages

244,834 comments

Copyright © 2025 · RealClimate is a commentary site on climate science by working climate scientists for the interested public and journalists.