Sunspots, the QBO, and the stratospheric temperature in the north polar region
Article first published online: 7 DEC 2012
Copyright 1987 by the American Geophysical Union.
Geophysical Research Letters
Volume 14, Issue 5, pages 535–537, May 1987
How to Cite
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 3 APR 1987
- Manuscript Received: 27 FEB 1987
There is an association between the polar stratospheric temperature in the northern winter and the solar cycle in the winters when the 50-mb equatorial winds are westerly: The lower the sunspot number in such winters, the lower is the temperature. No major mid-winter warmings occurred in these winters when the sunspot number was below about 100. There is no such relationship in the easterly phase of the QBO. In that phase the temperatures are generally higher than in the westerly phase, and major mid-winter warmings occur regardless of the state of the solar cycle.