Physics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jats...42.2415c&link_type=abstract
Journal of the Atmospheric Sciences (ISSN 0022-4928), vol. 42, Nov. 15, 1985, p. 2415-2437.
Physics
4
Atmospheric Circulation, Atmospheric Models, Boundary Conditions, Planetary Waves, Wind Shear, Atmospheric Heating, Heat Flux, Orography, Resonance, Wind Profiles, Zonal Flow (Meteorology)
Scientific paper
Stationary planetary waves forced by orography and diabatic heating are studied using a quasi-geostrophic two-level model on a beta plane. The model equations are set up and the zonal mean and perturbation equations are developed. The vertical continuous solutions of the perturbation equations forced by orography only are obtained for reference purposes by assuming constant zonal mean wind. A two-level model similar to that of Deroma and Wiin-Nielsen (1971) is constructed, and the energetics and eddy fluxes are derived. The induced meridional circulations and the induced accelerations of mean zonal flow are examined by solving the zonal mean equations. Results indicating important differences between the stationary planetary waves in the two hemispheres are the higher total wave number in the Southern Hemisphere and the interaction between thermal and orographic waves in the Northern Hemisphere.
Chen Shu-Chuan
Trenberth Kevin E.
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