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Surface Units on Venus Derived from Pioneer-venus Altimetry, Roughness, and Reflectivity MeasurementsThe nature of the Venusian surface was revealed by Pioneer-Venus (PV) observations to be diverse at scales from tens to hundreds of kilometers. Spatial correlations of elevation, surface roughness, and radar reflectivity were investigated as a means of assessing the degree of homogeneity of surface radar properties within topographic provinces and develop a map of possible geologic boundaries. Correlations were performed in a supervised fashion whereby unit boundaries were selected on the basis of statistical and empirical studies of the individual data sets. Interpretations of these units in terms of geologic characteristics are based on the determination of physical units which are model dependent.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Peterfreund, A. R.
(Brown Univ. Providence, RI, United States)
Head, J. W.
(Brown Univ. Providence, RI, United States)
Garvin, J. B.
(Brown Univ. Providence, RI, United States)
Zisk, S. A.
(Haystack Observatory Westford, Mass., United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984
Subject Category
Lunar And Planetary Exploration
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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