Radar Scattering from Venus at Large Angles of Incidence and the Question of Polar Ice Caps

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Science  20 Dec 1968:
Vol. 162, Issue 3860, pp. 1388-1390
DOI: 10.1126/science.162.3860.1388


Spectrum analysis of radar waves backscattered from an anulus near the limb of Venus shows that a uniform scattering model applies over regions extending from the equator to within approximately 15 degrees of the poles. These observations indicate that large polar ice caps extending to latitudes as low as 60 degrees are very unlikely.

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