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A dynamical framework to understand and predict the major Northern Hemisphere mode
Author(s) -
Cohen Judah,
Salstein David,
Saito Kazuyuki
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl014117
Subject(s) - mode (computer interface) , climatology , northern hemisphere , boreal , taiga , environmental science , climate change , statistical physics , atmospheric sciences , physics , meteorology , geology , computer science , ecology , oceanography , biology , paleontology , operating system
The dynamics of the leading mode of boreal winter and its excitation by varying boundary conditions remain mostly unclear. A novel framework is presented to explain the evolution of this dominant winter mode. It is shown that there exists a dichotomy of pathways with the characteristics of the dominant mode dependent upon the pathway taken. All winters examined fall into one of the two different dynamic evolutions presented, the knowledge of which clarifies prior uncertainties associated with the dominant mode and provides excellent potential for the successful prediction of subsequent winter mean climate states.