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Radio observations of Venus and the interpretations

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Abstract

The radio observations of Venus are reviewed and compared with theoretical microwave spectra computed for a variety of models of the Venusian environment. The models considered are (a) a CO2-N2 atmosphere, (b) an atmosphere of dust (the aeolosphere model), and (c) a cloud model with various loss mechanisms in the cloud. The effect of polarization on the surface emissivity has been included in all the computations. It is shown how the radio observations place limits upon the acceptable models, for example, the density and size of dust particles required in the aeolosphere model. It is shown how some models place severe restrictions on radar observations at short centimeter wavelengths, thereby emphasizing the importance of such experiments. These same models show that the Mariner II observations can not be interpreted in terms of surface phenomena and provide a new interpretation for the microwave phase effect.

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Authors and Affiliations

  1. Research Laboratory of Electronics,Massachusetts Institute of Technology, Cambridge, Mass., USA

    A. H. Barrett & D. H. Staelin

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  1. A. H. Barrett
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  2. D. H. Staelin
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This work was supported in part by the U.S. Army, Navy and Air Force under Contract DA36-039-AMC-03200(E); and in part by the National Aeronautics and Space Administration (Grants NsG-250-62 and NsG-419).

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Barrett, A.H., Staelin, D.H. Radio observations of Venus and the interpretations. Space Sci Rev 3, 109–135 (1964). https://doi.org/10.1007/BF00226646

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