Sea ice response to an extreme negative phase of the Arctic Oscillation during winter 2009/2010
Article first published online: 29 JAN 2011
Copyright 2011 by the American Geophysical Union.
Geophysical Research Letters
Volume 38, Issue 2, January 2011
How to Cite
2011), Sea ice response to an extreme negative phase of the Arctic Oscillation during winter 2009/2010, Geophys. Res. Lett., 38, L02502, doi:10.1029/2010GL045662., , , , , and (
- Issue published online: 29 JAN 2011
- Article first published online: 29 JAN 2011
- Manuscript Accepted: 29 NOV 2010
- Manuscript Revised: 27 OCT 2010
- Manuscript Received: 27 SEP 2010
- Arctic sea ice;
- atmospheric circulation
 Based on relationships established in previous studies, the extreme negative phase of the Arctic Oscillation (AO) that characterized winter of 2009/2010 should have favored retention of Arctic sea ice through the 2010 summer melt season. The September 2010 sea ice extent nevertheless ended up as third lowest in the satellite record, behind 2007 and barely above 2008, reinforcing the long-term downward trend. This reflects pronounced differences in atmospheric circulation during winter of 2009/2010 compared to the mean anomaly pattern based on past negative AO winters, low ice volume at the start of the melt season, and summer melt of much of the multiyear ice that had been transported into the warm southerly reaches of the Beaufort and Chukchi seas.