Variability of SO2 at Venus' cloud top during the July 2009 brightening event as seen by SPICAV-UV

Abstract : This paper applies the methods used by Marcq et al. [5] to derive observable SO2 column densities using SPICAV-UV in nadir mode on Venus Express to newer data immediately before and after the brightening event seen from Earth from 2009/07/19 to 2009/07/26 in the visible range. This event appears to have been followed by a global depletion in visible SO2 content lasting at last 6 Earth months. Various explanations are proposed to explain the observations, stressing the need for simultaneous measurements of other minor species in order to discriminate between competing hypotheses.
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https://hal.archives-ouvertes.fr/hal-00666400
Contributor : Catherine Cardon <>
Submitted on : Saturday, February 4, 2012 - 2:22:30 PM
Last modification on : Monday, May 20, 2019 - 11:50:27 AM

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Emmanuel Marcq, Franck Montmessin, Jean-Loup Bertaux, Denis Belyaev, B. Dhuit, et al.. Variability of SO2 at Venus' cloud top during the July 2009 brightening event as seen by SPICAV-UV. EPSC-DPS Joint Meeting 2011, Oct 2011, Nantes, France. ⟨hal-00666400⟩

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