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http://hdl.handle.net/1834/507
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| 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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