• 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 / Antarctic Oscillation (“AAO”) Oscillation Antarctique

Antarctic Oscillation (“AAO”) Oscillation Antarctique

28 Nov 2004 by group

Measure of the pressure gradient between the polar and subpolar regions of the Southern Hemisphere. Term was introduced by Thompson and Wallace (2000). More information on the AAO can be found here. See also Arctic Oscillation (“AO”).

Mesure du gradient de pression entre les régions pôlaires et sub-pôlaires de l’Hémisphère Sud. Ce terme a été employé pour la première fois par Thompson et Wallace (2000). Plus d’informations sur l’Oscillation Antarctique peuvent être trouvées ici. Voir également Oscillation Arctique.

Filed Under: Glossary

Primary Sidebar

Search

Search for:

Email Notification

get new posts sent to you automatically (free)
Loading

Recent Posts

  • AI/ML climate magic?
  • Unforced variations: Jan 2026
  • 1.5ºC and all that
  • Unforced Variations: Dec 2025
  • Who should pay?
  • Site updates etc.

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

  • Data on AI/ML climate magic?
  • Barton Paul Levenson on 1.5ºC and all that
  • Paul Pukite (@whut) on AI/ML climate magic?
  • Nigelj on AI/ML climate magic?
  • zebra on AI/ML climate magic?
  • Susan Anderson on Unforced variations: Jan 2026
  • Adam Lea on AI/ML climate magic?
  • Susan Anderson on AI/ML climate magic?
  • Ron R. on AI/ML climate magic?
  • Ken Fabian on 1.5ºC and all that
  • Data on 1.5ºC and all that
  • Data on Unforced variations: Jan 2026
  • Atomsk's Sanakan on Unforced variations: Jan 2026
  • Atomsk's Sanakan on 1.5ºC and all that
  • Piotr on Unforced variations: Jan 2026
  • Piotr on Unforced variations: Jan 2026
  • Atomsk’s Sanakan on Unforced variations: Jan 2026
  • Nigelj on Unforced variations: Jan 2026
  • Susan Anderson on 1.5ºC and all that
  • Nigelj on 1.5ºC and all that
  • Atomsk’s Sanakan on Unforced variations: Jan 2026
  • Atomsk’s Sanakan on Unforced variations: Jan 2026
  • Atomsk’s Sanakan on Unforced variations: Jan 2026
  • JCM on Unforced variations: Jan 2026
  • Ray Ladbury on AI/ML climate magic?
  • Data on Unforced variations: Jan 2026
  • Data on 1.5ºC and all that
  • Nigelj on AI/ML climate magic?
  • Susan Anderson on Unforced variations: Jan 2026
  • Data on 1.5ºC and all that

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

1,392 posts

15 pages

249,389 comments

Copyright © 2026 · RealClimate is a commentary site on climate science by working climate scientists for the interested public and journalists.