Computer Science
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986fizao..22..124b&link_type=abstract
Akademiia Nauk SSSR, Izvestiia, Fizika Atmosfery i Okeana (ISSN 0002-3515), vol. 22, Feb. 1986, p. 124-134. In Russian.
Computer Science
1
Atmospheric Circulation, Atmospheric Temperature, Lorentz Transformations, Planetary Atmospheres, Temperature Gradients, Vertical Distribution, Convective Flow, Geostrophic Wind, Mars Atmosphere, Rossby Regimes, Rotating Fluids
Scientific paper
The effect of a stable vertical temperature gradient (delta T) on the convective motion of a rotating fluid layer is studied within the framework of a Lorentzian two-layer geostrophic model. Low-order approximation of the gradient effect showed that increases in delta T (the difference in temperature between the heated surface layer and the colder lower layers in the atmosphere) coincided with contraction of regions having stable wave motion. A critical value of delta T is found which corresponds to the point of stable circulation. The theoretical results were confirmed by laboratory experiments with a rotating, differentially heated annular disk in which a stabilizing temperature gradient was imposed between top and bottom. The experimental results are compared with observational data on the Martian atmosphere during periods of cyclonic dust storm activity.
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