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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/507

Title: Multiple Planetary Flow Regimes and the Eddy Forcing in Northern Hemisphere Wintertime Variability
Authors: Straus, D.M.
Wu, Q.
ASFA Terms: Atmospheric conditions
Issue Date: Apr-2003
Abstract: A cluster algorithm is applied to the zonal mean zonal wind and 500 hPa height from winter monthly means (for the period 1948-2002), obtained from the reanalyses of the National Centers for Environmental Prediction - National Center for Atmospheric Research (NCEP/NCAR). Four reproducible and robust clusters are found: two regimes represent the opposite phases the Northern Hemisphere Annular mode (NAM), and two regimes represent the opposite phases of a pattern which can be identified with the Cold Ocean-Warm Land (COWL) pattern. This identification is accomplished by regressing the zonal mean zonal wind on the COWL-index derived from 500 hPa height data by Wu and Straus [2003].
URI: http://hdl.handle.net/1834/507
Appears in Collections:Miscellaneous

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