The Structure of Venus Clouds—Summary | Zendy

Rasool S. I. | Zendy

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The Structure of Venus Clouds—Summary

Author(s) -

Rasool S. I.

Publication year - 1970

Publication title -

radio science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.371

H-Index - 84

eISSN - 1944-799X

pISSN - 0048-6604

DOI - 10.1029/rs005i002p00367

Subject(s) - attenuation , venus , radio occultation , occultation , atmosphere (unit) , atmosphere of venus , altitude (triangle) , physics , line (geometry) , atmospheric sciences , geology , ionosphere , computational physics , optics , astrophysics , environmental science , meteorology , astronomy , geometry , mathematics , astrobiology

The analysis of the Mariner‐5 radio occultation data has resulted in significant new information on the structure of cloud layers in the lower atmosphere of Venus. Figure 1 shows the Mariner‐5 signal attenuation as a function of altitude recorded during the occultation experiment. The solid line marked ‘CO 2 defocusing’ shows the anticipated attenuation calculated with the assumption that the atmosphere is mainly composed of CO 2 and that the atmospheric defocusing is the only cause of attenuation. The observational curve in the figure differs from the calculated curve in two respects: (1) the observed attenuation is considerably greater than that anticipated at altitudes below 52 km; and (2) although the theoretical curve is smooth, the measured attenuation shows a structure with sharp changes in slope and several peaks.

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