Sulfur Dioxide: Episodic Injection Shows Evidence for Active Venus Volcanism

  title={Sulfur Dioxide: Episodic Injection Shows Evidence for Active Venus Volcanism},
  author={L. Esposito},
  pages={1072 - 1074}
Pioneer Venus ultraviolet spectra from the first 5 years of operation show a decline (by more than a factor of 10) in sulfur dioxide abundance at the cloud tops and in the amount of submicron haze above the clouds. At the time of the Pioneer Venus encounter, the values for both parameters greatly exceeded earlier upper limits. However, Venus had a similar appearance in the late 1950's, implying the episodic injection of sulfur dioxide possibly caused by episodic volcanism. The amount of haze in… Expand
Variations of sulphur dioxide at the cloud top of Venus’s dynamic atmosphere
A pulse of sulphur dioxide in Venus’s upper atmosphere was observed by the Pioneer Venus spacecraft in the 1970s and 1980s and attributed to volcanism. Recent sulphur dioxide measurements from VenusExpand
Long term changes in Venus sulfur dioxide
Abstract Pioneer Venus data from the first 5 years of operation show a decline by more than a factor of ten in SO2 at the cloud tops. A consistent decline has also recurred in the amount ofExpand
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Venus Lives!
  • 2020
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