Computer Science
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jats...48..225b&link_type=abstract
Journal of the Atmospheric Sciences (ISSN 0022-4928), vol. 48, Jan. 15, 1991, p. 225-235.
Computer Science
11
Atmospheric Circulation, Gravity Waves, Mars Atmosphere, Middle Atmosphere, Wave Interaction, Zonal Flow (Meteorology), Geostrophic Wind, Planetary Atmospheres
Scientific paper
A nearby analytic model of a gravity wave driven middle atmosphere circulation is formulated. The simplified model represents the one-dimensional interaction of a single gravity wave mode with a zonal-mean flow. Solutions of this model are shown to agree very well with numerical results from a more complete mean-flow/gravity-wave model (essentially the model developed by Holton, 1982). A single nondimensional parameter, the ratio of a mean flow radiative forcing parameter, and the gravity wave momentum flux incident into the middle atmosphere from below largely determine the solution of the model. For typical middle atmosphere parameter values, an approximate solution can be obtained, and this solution permits the parameter dependence of the circulation to be characterized very simply. The gravity wave driven circulation extends downward from the level (the breaking level, approximately) where the momentum flux equals the mean flow radiative forcing.
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