The potential role of snow cover in forcing interannual variability of the major Northern Hemisphere mode
Article first published online: 22 MAR 2003
Copyright 2003 by the American Geophysical Union.
Geophysical Research Letters
Volume 30, Issue 6, March 2003
How to Cite
2003), The potential role of snow cover in forcing interannual variability of the major Northern Hemisphere mode, Geophys. Res. Lett., 30, 1302, doi:10.1029/2002GL016341, 6., and (
- Issue published online: 22 MAR 2003
- Article first published online: 22 MAR 2003
- Manuscript Accepted: 2 DEC 2002
- Manuscript Revised: 6 NOV 2002
- Manuscript Received: 26 SEP 2002
 Decadal trends have been noted in the leading mode of boreal winter variability. Given that this mode is thought to be an internal mode of the atmosphere it remains unclear as to what is responsible for interannual to interdecadal oscillations of this mode. We demonstrate that continental-scale snow cover varies at the same multi-year time periods as the atmosphere but leads the atmosphere by several months through their mutual oscillations. Therefore we propose snow cover as a potential contributor to the interannual variability of the leading boreal winter mode of the atmosphere.