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Geomagnetic Activity Forcing of the Northern Annular Mode Via the Stratosphere : Volume 22, Issue 3 (19/03/2004)

By Palamara, D. R.

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Book Id: WPLBN0003976053
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Geomagnetic Activity Forcing of the Northern Annular Mode Via the Stratosphere : Volume 22, Issue 3 (19/03/2004)  
Author: Palamara, D. R.
Volume: Vol. 22, Issue 3
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2004
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Palamara, D. R., & Bryant, E. A. (2004). Geomagnetic Activity Forcing of the Northern Annular Mode Via the Stratosphere : Volume 22, Issue 3 (19/03/2004). Retrieved from http://worldlibrary.net/


Description
Description: University of Wollongong, School of Geosciences, NSW 2522, Australia. We consider various aspects of the link between solar-modulated geomagnetic activity and the Northern Annular Mode (NAM). Our results indicate that the geomagnetic forcing of atmospheric circulation in the Northern Hemisphere is temporally and seasonally restricted, modulated by the Quasi-Biennial Oscillation (QBO), and reliant on stratosphere-troposphere coupling. When the data are restricted to January values after 1965, for years in which the January QBO is eastwards, the correlation coefficient between the geomagnetic AA index and the NAM is 0.85. These results can account for many of the enigmatic features of Northern Hemisphere circulation.

Key words. Meterology and atmospheric dynamics (general circulation, climatology)


Summary
Geomagnetic activity forcing of the Northern Annular Mode via the stratosphere

 

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