Variations of sulphur dioxide at the cloud top of Venus’s dynamic atmosphere

  title={Variations of sulphur dioxide at the cloud top of Venus’s dynamic atmosphere},
  author={Emmanuel Marcq and J L Bertaux and Franck Montmessin and Denis Belyaev},
  journal={Nature Geoscience},
  pages={25 - 28}
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 Venus Express indicate decadal-scale fluctuations in sulphur dioxide above Venus’s cloud tops in an atmosphere that is more dynamic than expected. Sulphur dioxide is a million times more abundant in the atmosphere of Venus than that of Earth, possibly as a result of volcanism on Venus within the past… 

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