Preparing EnVision: SO2 measurements below and above Venus' clouds

Emmanuel Marcq 1 K. L. Jessup 2 Thérèse Encrenaz 3 Lucio Baggio 1 Ismaïl Amine 1 Marc Duquesnoy 1 Franck Montmessin 1 Franck Lefèvre 1 Jean-Loup Bertaux 1 A. C. Vandaele 4 S. Robert 4 J. Helbert 5 T. Widemann 3 C. Wilson 6 R. Ghail 7
1 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
2 SwRI - Southwest Research Institute [Boulder]
3 LESIA (UMR_8109) - Laboratoire d'études spatiales et d'instrumentation en astrophysique
4 BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique
5 DLR Institut für Planetenforschung
6 AOPP - Department of Atmospheric, Oceanic and Planetary Physics [Oxford]
7 RHUL - Royal Holloway [University of London]
Abstract : One of the primary objectives of the preselected En-Vision M5 proposal is the monitoring of volcanogenicspecies in Venus’ atmosphere, one of the most promi-nent being sulphur dioxide (SO2). Monitoring SO2below the clouds can be performed on the night-side near2.4μm, and is one science objective of theVenSpec-H channel (P.I.: A. C. Vandaele, BIRA) on-board EnVision. Monitoring SO2above the cloudscan be performed on the dayside in the200-300 nmrange, and is the main science objective of theVenSpec-U channel (P.I.: E. Marcq, LATMOS). Herewe present the analysis of two analogous datasets,namely IRTF/iSHELL ground based observations onthe nightside of Venus, and the most recent reanalay-sis of the Venus Express/SPICAV-UV dataset on thedayside of Venus
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Emmanuel Marcq, K. L. Jessup, Thérèse Encrenaz, Lucio Baggio, Ismaïl Amine, et al.. Preparing EnVision: SO2 measurements below and above Venus' clouds. EPSC-DPS Joint Meeting 2019, Sep 2019, Geneva, Switzerland. pp.EPSC-DPS2019-253-1. ⟨insu-02262580⟩

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