Observed correlations between winter-mean tropospheric and stratospheric circulation anomalies
Article first published online: 7 DEC 2012
Copyright 1994 by the American Geophysical Union.
Geophysical Research Letters
Volume 21, Issue 12, pages 1141–1144, 15 June 1994
How to Cite
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 18 APR 1994
- Manuscript Received: 14 FEB 1994
It is shown that interannual variability of the northern winter stratospheric flow in 1964-1993 was closely linked to large-scale circulation anomalies in the middle troposphere. Of the known tropospheric teleconnection patterns, the one having the strongest relation to the DJF zonal-mean stratospheric flow was the North Atlantic Oscillation (NAO). Singular value decomposition between the 500 and 50-hPa geopotential heights produced a 500-hPa structure containing elements of the NAO pattern, but including an anomaly in eastern Siberia. During this time period, the correlation of NAO-related modes to the polar lower stratosphere exceeded that of the equatorial quasi-biennial oscillation.