Physics
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jats...42.1893w&link_type=abstract
Journal of the Atmospheric Sciences (ISSN 0022-4928), vol. 42, Sept. 15, 1985, p. 1893-1910.
Physics
13
Atmospheric Circulation, Atmospheric Models, Baroclinic Instability, Energy Budgets, Planetary Waves, Transient Oscillations, Atmospheric Heat Budget, Atmospheric Stratification, Brunt-Vaisala Frequency, Ekman Layer, Linear Equations, Midlatitude Atmosphere, Vertical Air Currents, Wave Attenuation, Wind Shear
Scientific paper
In the present paper, a model obtained by Charney (1947) is extended by including Newtonian cooling, a linear vertical variation of the stratification parameter, and Ekman dissipation. It is attempted to obtain simplified, yet accurate expressions for the dispersion relation and the eigenfunctions for the generalized Charney instability problem. Attention is given to dynamic equations, exact and approximate normal mode solutions, wave selection, strong and weak instabilities, vertical structures, the effects of the increasing static stability on the Green mode, the energetics of the Charney and Green modes, and the equatorward transport of eddy potential vorticity.
Barcilon Albert
Howard L. N.
Wang Binghong
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