The Highs and Lows of the NAO		Air is pushed away from a high pressure system. The winds rotate clockwise (in the Northern Hemisphere, counter-clockwise in the Southern Hemisphere) and away from the system's center. (Animation by Robert Simmon)

	Subscribe to the Earth Observatory About the Earth Observatory Please send comments or questions to: eo-contact@eodomo.gsfc.nasa.gov Program Manager: David Herring Responsible NASA official: Yoram Kaufman NASA/GSFC Security and Privacy Statement