Nature of the Ultraviolet Absorber in the Venus Clouds: Inferences Based on Pioneer Venus Data

  title={Nature of the Ultraviolet Absorber in the Venus Clouds: Inferences Based on Pioneer Venus Data},
  author={James B. Pollack and Boris Ragent and Robert W. Boese and Martin George Tomasko and Jacques Blamont and Robert G. Knollenberg and Larry W. Esposito and A. Ian F. Stewart and Lawrence Travis},
  pages={76 - 79}
Several photometric measurements of Venus made from the Pioneer Venus orbiter and probes indicate that solar near-ultraviolet radiation is being absorbed throughout much of the main cloud region, but little above the clouds or within the first one or two optical depths. Radiative transfer calculations were carried out to simulate both Pioneer Venus and ground-based data for a number of proposed cloud compositions. This comparison rules out models invoking nitrogen dioxide, meteoritic material… 
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The clouds of Venus: A synthesis report
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Scattering Properties of the Venusian Clouds Observed by the UV Imager on board Akatsuki
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Further Results of the Pioneer Venus Nephelometer Experiment
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Absorption of Sunlight in the Atmosphere of Venus
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Temperature, Cloud Structure, and Dynamics of Venus Middle Atmosphere by Infrared Remote Sensing from Pioneer Orbiter
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Orbiter Cloud Photopolarimeter Investigation
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Clouds of Venus: A Preliminary Assessment of Microstructure
Sedimentation and decomposition of H2SO4 in the droplets of the lower cloud region contribute more than 7 watts per square meter of heat flux equaling one-fourth of the solar net flux at 50 kilometers.
Ultraviolet photometry from the orbiting astronomical observatory. III - Observations of Venus, Mars, Jupiter, and Saturn longward of 2000 A.
A number of high-quality spectra of Mars, Jupiter, the combined disk and rings of Saturn, as well as lower-quality spectra of Venus, have been obtained with an objective-grating spectrometer of the
Electron Observations and Ion Flows from the Pioneer Venus Orbiter Plasma Analyzer Experiment
Additional plasma measurements in the vicinity of Venus are presented which show that (i) there are three distinct plasma electron populations—solar wind electrons, ionosheath electrons, and
Evidence for an Elemental Sulfur Component of the Clouds from Venus Spectrophotometry
The decrease in the reflectivity of Venus in the near-UV can be explained if the clouds contain particles of elemental sulfur in addition to sulfuric acid. The low-resolution McDonald-Pittsburgh
Interpretation of the polarization of Venus
Abstract The linear polarization of sunlight reflected by Venus is analyzed by comparing observations with extensive multiple scattering computations. The analysis establishes that Venus is veiled by
Estimates of the Climatic Impact of Aerosols Produced by Space Shuttles, SST's, and other High Flying Aircraft
Abstract Aircraft and Space Shuttles flying through the stratosphere over the next several decades will add sulfuric acid and aluminum oxide particles, respectively, to this region of the atmosphere.