Eurasian snow cover variability and northern hemisphere climate predictability
Article first published online: 7 DEC 2012
Copyright 1999 by the American Geophysical Union.
Geophysical Research Letters
Volume 26, Issue 3, pages 345–348, 1 February 1999
How to Cite
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 22 DEC 1998
- Manuscript Received: 14 SEP 1998
Vol. 26, Issue 8, 1051, Article first published online: 7 DEC 2012
We present observational evidence demonstrating dynamic interactions and feedbacks between multi-seasonal snow cover and winter-time circulation anomalies over mid-high latitudes. The cooling effect of snow cover is associated with a strengthened and more expansive Siberian high with more frequent, topographically constrained intrusions west and north. Early-season snow cover variability leads to altered general circulation patterns consistent with the dominant mode of winter variability observed in the Northern Hemisphere troposphere. The implications of the surface-atmosphere coupling for seasonal to interannual predictability are also discussed.