Reports

Further Results of the Pioneer Venus Nephelometer Experiment

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Science  06 Jul 1979:
Vol. 205, Issue 4401, pp. 67-70
DOI: 10.1126/science.205.4401.67

Abstract

Backscattering data for the nephelometer experiments conducted aboard the Pioneer Venus mission probes, including data up to the highest altitudes measured by the probes, are presented. A few small signals were detected below the main cloud deck. Ambient radiation was measured at near-ultraviolet and visible wavelengths; the variation of extinction of near-ultraviolet with altitude is inferred. Ambient radiance decreased more rapidly at 530 than at 745 nanometers in the lower atmosphere.

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