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Arctic Climate and Atmospheric Planetary WavesAnalysis of a fifty-year record (1946-1995) of monthly-averaged sea level pressure data provides a link between the phases of planetary-scale sea level pressure waves and Arctic Ocean and ice variability. Results of this analysis show: (1) a breakdown of the dominant wave 1 pattern in the late 1960's, (2) shifts in the mean phase of waves 1 and 2 since this breakdown, (3) an eastward shift in the phases of both waves 1 and 2 during the years of simulated cyclonic Arctic Ocean circulation relative to their phases during the years of anticyclonic circulation, (4) a strong decadal variability of wave phase associated with simulated Arctic Ocean circulation changes. Finally, the Arctic atmospheric circulation patterns that emerge when waves 1 and 2 are in their extreme eastern and western positions suggest an alternative approach for determining significant forcing patterns of sea ice and high-latitude variability.
Document ID
20010090325
Document Type
Conference Paper
Authors
Cavalieri, D. J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Haekkinen, S. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Zukor, Dorothy J.
Date Acquired
August 20, 2013
Publication Date
January 2, 2001
Subject Category
Meteorology and Climatology
Meeting Information
European Geophysical Society Meeting(Nice)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.