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Article: Dipole Anomaly in the Winter Arctic Atmosphere and Its Association with Sea Ice Motion
- Article from:
- Journal of Climate
- Article date:
- January 15, 2006
- Author:
CopyrightCopyright American Meteorological Society Jan 15, 2006. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
This paper identified an atmospheric circulation anomaly-dipole structure anomaly in the Arctic atmosphere and its relationship with winter sea ice motion, based on the International Arctic Buoy Program (IABP) dataset (1979-98) and datasets from the National Centers for Environmental Prediction (NCEP) and the National Center for Atmospheric Research (NCAR) for the period 1960-2002. The dipole anomaly corresponds to the second-leading mode of EOF of monthly mean sea level pressure (SLP) north of 70°N during the winter season (October-March) and accounts for 13% of the variance. One of its two anomalous centers is stably occupied between the Kara Sea and Laptev Sea; the other is ...