Mathematics – Logic
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mmsai..51..263b&link_type=abstract
Società Astronomica Italiana, Memorie, vol. 51, June 1980, p. 263-284.
Mathematics
Logic
Geological Surveys, Planetary Evolution, Planetary Mapping, Radar Imagery, Venus Surface, Geomorphology, Hypsometers, Mariner 10 Space Probe, Pioneer Venus Spacecraft, Radio Altimeters, Ultraviolet Photography
Scientific paper
Earth-based and Pioneer Venus radar observations of the surface of Venus are discussed. Radar altimetry data are examined, and the spacecraft data are used to construct a hypsometric curve for Venus. The curve shows that only 5 percent of the entire surface of Venus is above the altimetric zero, that more than 80 percent of the curve is almost flat with a depth of between 1 and 2 km, and that the maximum difference in height is approximately 10 km. A comparative analysis of the hypsometric curves of earth, the moon, Mars, and Venus is performed, together with a morphometrical analysis of the Beta Region and Ishtar Terra on Venus. It is found that the hypsometric curve of Venus has a Gaussian shape similar to that of the moon's, implying that no large-scale tectonism has occurred on Venus, and that both the Beta Region and Ishtar Terra appear to be volcanic in origin.
Bianchi R.
Coradini Marcello
Flamini Enrico
Fulchignoni Marcello
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