Zonal winds near Venus' cloud top level - A model study of the interaction between the zonal mean circulation and the semidiurnal tide

Details Zonal winds near Venus' cloud top level - A model study of the interaction between the zonal mean circulation and the semidiurnal tide Zonal winds near Venus' cloud top level - A model study of the interaction between the zonal mean circulation and the semidiurnal tide

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...69..202b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 69, Feb. 1987, p. 202-220.

Mathematics

21

Atmospheric Circulation, Atmospheric Tides, Venus Clouds, Wind Profiles, Zonal Flow (Meteorology), Atmospheric Temperature, Mathematical Models, Primitive Equations, Venus, Winds, Clouds, Layers, Models, Interaction, Circulation, Jets, Tidal Effects, Diurnal Variations, Thermal Effects, Structure, Shear, Velocity, Latitude, Temperature, Hypotheses, Acceleration, Wavelengths, Amplitude, Parameters, Decay, Flow, Magnitude, Friction, Damping, Diagrams, Calculations, Pressure, Heating, Cooling, Zoning

Scientific paper

A primitive equation wave-mean flow interaction model, designed by J. R. Holton and used originally to study Earth's middle atmosphere, has been adapted to Venus in order to clarify the understanding of the interaction between the semidiurnal tide and the thermally driven mean meridional circulation near the cloud top level. With or without the tide the model produces midlatitude jets whose structure is insensitive to vertical shear of the background angular velocity above and below the cloud top level, but it is sensitive to background angular velocity at the cloud top level. Agreement between the model tide and the observed tide, or the tide determined in the more detailed calculations of Pechmann and Ingersoll, is best when the background angular velocity at the jet level is about 30% larger than that observed.

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