Abstract
Present ideas about the surface and interior of Venus are based on data obtained from (1) Earth-based radio and radar: temperature, rotation, shape, and topography; (2) fly-by and orbiting spacecraft: gravity and magnetic fields; and (3) landers: winds, local structure, gamma radiation. Surface features, including large basins, crater-like depressions, and a linear valley, have been recognized from recent ground-based radar images. Pictures of the surface acquired by the USSR's Venera 9 and 10 show abundant boulders and apparent wind erosion.
On the Pioneer Venus 1978 Orbiter mission, the radar mapper experiment will determine surface heights, dielectric constant values and small-scale slope values along the sub-orbital track between 50°S and 75°N. This experiment will also estimate the global shape and provide coarse radar images (40–80 km identification resolution) of part of the surface. Gravity data will be obtained by radio tracking. Maps combining radar altimetry with spacecraft and ground-based images will be made. A fluxgate magnetometer will measure the magnetic fields around Venus.
The radar and gravity data will provide clues to the level of crustal differentiation and tectonic activity. The magnetometer will determine the field variations accurately. Data from the combined experiments may constrain the dynamo mechanism; if so, a deeper understanding of both Venus and Earth will be gained.
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References
Ash, M. E., Shaprio, I. I., and Smith, W. B.: 1971,Science 174, 551.
Avduyevsky, V. S.et al.: 1976, Paper presented at XIX COSPAR Meeting, Phila, Pa., 14–19 June.
Bird, J. M. and Isacks, B., ed.: 1972,Plate Tectonics, in Selected Papers fromJour. Geophys. Res., Washington, AGU 563 pps.
Bridge, H. S., Lazarus, A. J., Snyder, C. W., Smith, E. J., Davis, L. Jr., Coleman, P. J. Jr., and Jones, D. E.: 1967,Science 158, 1669.
Busse, F. H.: 1976,Phys. Earth Planet. Int. 12, 350.
Campbell, D. B., Dyce, R. B., Ingalls, R. P., Pettengill, G. H., and Shapiro, I. I.: 1972,Science 175, 515.
Carpenter, R. L.: 1970,Astron. J. 75, 61.
Colin, L. and Hall, C. F.: 1976,Space Sci. Rev. 20, 283.
Cox, A.: 1973,Plate Tectonics and Geomagnetic Revisals: San Fran., W. H. Freeman & Co., 702 pps.
Dolginov, S. S.: 1975, On the magnetic dynamo mechanism of the planets, Preprint N9A (124), IZMIRAN, Moscow.
Dolginov, S. S., Yeroshenko, Y. G., and Zhuzgov, L. N.: 1968,Kosmich. Issled 6, 561.
Dolginov, S. S., Yeroshenko, Y. G., and Davis, L.: 1969,Kosmich. Issled 7, 747.
Goldreich, P. and Peale, S. J.: 1970,Astron. J. 75, 273.
Goldstein, R. M., Green, R. R., and Rumsey, H. C.:J. Geophys. Res. 81, 4807.
Greeley, R.: 1976, NASA TM X-3364, 102.
Howard, H. T., Tyler, G. L., Fjeldbo, G., Kliore, A. J., Levy, G. S., Brunn, D. L., Dickinson, R., Edelson, R. E., Martin, W. L., Postal, R. B., Seidel, B., Sesplaukis, T. T., Shirley, D. L., Stelzried, C. T., Sweetnam, D. N., Zygielbaum, A. I., Esposito, P. B., Anderson, J. D., Shapiro, I. I., and Reasenberg, R. D.: 1974,Science 183, 1297.
Jurgens, R. F.: 1970,Radio Science 5, 435.
Kaula, W. M.: 1963,J. Geophys. Res. 68, 4967.
Kaula, W. M.: 1975,Icarus 26, 1.
Keen, C., and Tramontini, C.: 1970,Geophys. J. 20, 473.
Le Pichon, X, Francheteau, J., and Bonnin, J.: 1973,Plate Tectonics, Amsterdam, Elsevier Publ. Co., 300 pps.
Lewis, J. S.: 1972,Earth Planet. Sci. Lett. 15, 286.
Lewis, J. S., 1973:Ann. Rev. Phys. Chem. 24, 339.
Lingenfelter, R. E. and Schubert, G.: 1973,Moon 7, 172.
Masursky, H.: 1973,J. Geophys. Res. 78, 4009.
Murray, B. C., Strom, R. G., Trask, N. J., and Gault, D. E.: 1975,J. Geophys. Res. 80, 2508.
Ness, N. F., Behannon, K. W., Lepping, R. P., Whang, Y. C.: 1975,J. Geophys. Res. 80, 2708.
Phillips, R. J. and Saunders, R. S.: 1975,J. Geophys. Res. 80, 2893.
Ringwood, A. E. and Anderson, D. C.: 1976,Icarus, in press.
Rumsey, H. C., Morris, G. A., Green, R. P., and Goldstein, R. M.: 1974,Icarus 23, 1.
Russell, C. T.: 1976,Geophys. Res. Lett. 3, 125.
Safronov, V. S.: 1972,Evolution of the Proto-planetary Cloud and Formation of the Earth and the Planets, Israel Program for the Scientific Translations, Jerusalem, 111.
Schaber, G. G.: Sept. 1975, Geologic application of radar data to planetary exploration, in Internat. Coll. Plan. Geol., expanded abstracts, ed. Italian consortium for Planetary Studies.
Shapiro, I. I.: 1967,Science 157, 423.
Smith, E. J., Davis, L., Jr., Coleman, P. J., Jr., and Sonett, C. P.: 1963,Science 139, 909.
Smith, W. B., Ingalls, R. P., Shapiro, I. I., and Ash, M. E.: 1970,Radio Sci. 5, 411.
Surkov, Y. A., Kirnozov, F. F., Glazov, V. N., and Fedoseyev, G. A.: 1976a, Investigations of Venusian gamma-radiation by Venera 9 and Venera 10, presented to XIX meeting of cospar, Philadelphia.
Surkov, Y. A., Kirnozov, F. F., Kilistiopov, V. K., Korchagenov, B. N., Glazov, V. N., and Ivonov, V. F.: 1976b, Investigation of the Density of the Venusian Surface Rocks by Venera 10, presented to XIX Meeting of Cospar, Philadelphia.
Toksöz, M. N. and Johnston, D. H.: 1976, The Evolution of the Moon and the Terrestrial Planets.Proc. of Soviet-American Conference on Cosmochemistry of the Moon and Planets in Press.
Toksöz, M. N. and Solomon, S. C.: 1973,The Moon 7, 251.
Vinogradov, A. P., Surkov, Y. A., and Kirnozov, F. F.: 1973,Icarus 20, 253.
Warnock W. W. and Dickel, J. R.: 1972,Icarus 17, 682.
Woollard, G. P.: 1972, in E. C. Robertson (ed.)The Nature of the Solid Earth, McGraw-Hill, 463.
Zigel, F.: 1976, Venus surface pictures, Tekhnika Molodeshi, No. 12, 30-34, 1975, translated by NASA, NASA TTF-16922.
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Masursky, H., Kaula, W.M., McGill, G.E. et al. 10. The surface and interior of venus. Space Sci Rev 20, 431–449 (1977). https://doi.org/10.1007/BF02186462
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DOI: https://doi.org/10.1007/BF02186462