Sulphur oxides in Venus mesosphere detected from SPICAV/SOIR VEX solar occultation

Details Sulphur oxides in Venus mesosphere detected from SPICAV/SOIR VEX solar occultation Sulphur oxides in Venus mesosphere detected from SPICAV/SOIR VEX solar occultation

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1856b&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1856

Computer Science

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Scientific paper

New measurements of sulfur dioxide (SO2) and monoxide (SO) in the atmosphere of Venus by SPICAV / SOIR instrument onboard Venus Express orbiter provide powerful statistics to study the behavior of gases above Venus' clouds. The instrument (a set of 3 spectrometers) is capable to sound atmospheric structure above the clouds at several regimes of observations (nadir, solar and stellar occultations) either in UV or in near IR spectral ranges. In this paper we present results from solar occultations in the ranges of SO2 absorption (190-230 nm, 4 !m) and SO (190-230 nm). The dioxide was detected by spectrometer SOIR at altitudes 65-80 km in the IR and by spectrometer SPICAV at 85-105 km in the UV. The monoxide's absorption was measured only by SPICAV UV at 85- 105 km.

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