Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images

Details Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jats...35.1584t&link_type=abstract

Journal of the Atmospheric Sciences, vol. 35, Sept. 1978, p. 1584-1595.

Computer Science

10

Atmospheric Circulation, Cloud Photographs, Power Spectra, Spaceborne Photography, Spectrum Analysis, Venus Atmosphere, Atmospheric Turbulence, Mariner 10 Space Probe, Midlatitude Atmosphere, Photointerpretation, Ultraviolet Absorption

Scientific paper

Power spectrum analysis of Mariner 10 images for planetary zonal wavenumbers no less than 3 and for latitudes in the range 55 deg S to 25 deg N yields spectra which show a systematic and apparently significant variation with latitude. Accordingly, average spectra are determined for three latitude zones: an equatorial region, a midlatitude region, and an intermediate zone. A comparison of the results for Venus with brightness distribution spectra for terrestrial clouds reveals similarities between the Venus midlatitude region spectrum and that for the equatorial region of the earth. The only indication of a departure from a general power law behavior for the Venus spectra is a flattening of the equatorial spectrum in the region of wavenumbers 3 and 4. The characteristics of the Venus image spectra appear to be compatible with the interpretation that the observable clouds lie in a region of high static stability with the inertial eddy motions corresponding to two-dimensional turbulence.

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