Acoustic-gravity waves in the thermosphere of Venus

Details Acoustic-gravity waves in the thermosphere of Venus Acoustic-gravity waves in the thermosphere of Venus

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...39..401d&link_type=abstract

Icarus, vol. 39, Sept. 1979, p. 401-417. Research supported by the Aerospace Corp.;

Physics

1

Acoustic Propagation, Gravity Waves, Thermosphere, Venus Atmosphere, Wave Propagation, Amplitudes, Atmospheric Diffusion, Atmospheric Heating, Atmospheric Models, Carbon Dioxide Concentration, Helium, Mass Spectrometers, Nitrogen, Phase Shift, Pioneer Venus Spacecraft, Pioneer Venus 1 Spacecraft, Venus, Thermosphere, Gravitational Radiation, Models, Mass Spectrometer, Pioneer Venus Orbiter, Atmosphere, Waves, Nitrogen, Carbon Monoxide, Oxygen, Carbon Dioxide, Resonance, Temperatures, Heating, Phases, Amplit

Scientific paper

The paper studies the properties of acoustic-gravity waves in the upper atmosphere of Venus by means of a two fluid model which includes the effects of wave-induced diffusion in a diffusively separated atmosphere. It is maintained that in conjunction with neutral mass spectrometer data from the Pioneer Venus orbiter, the theory should provide information on the distribution of wave sources in the Venus upper atmosphere. In addition observed wave structure in species density measurements should generally have periods less than or equal to 30-35 min, small N2, CO, and O amplitudes, and highly variable phase shifts relative to CO2. Finally, it is noted that large-density oscillations in stratospheric cloud layer constituents are also possible and may be detectable by the Pioneer Venus large probe neutral mass spectrometer.

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