Minor Species in the Deep Atmosphere of Venus: Dynamical Tracers seen by Venus Express

Details Minor Species in the Deep Atmosphere of Venus: Dynamical Tracers seen by Venus Express Minor Species in the Deep Atmosphere of Venus: Dynamical Tracers seen by Venus Express

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.6007t&link_type=abstract

American Astronomical Society, DPS meeting #41, #60.07

Astronomy and Astrophysics

Astronomy

Scientific paper

Venus Express now approaches the end of its first extended mission, having been in Venus orbit since early 2006. The VIRTIS instrument, which covers a wavelength range between 0.25 to 5.1 μm, has been continually measuring nightside thermal emissions from the deep atmosphere between 1.0 and 2.5 μm. Absorption bands of CO, H2O and OCS in this region have been measured with unprecedented precision and resolution in space and time since Venus Express arrived. The results so far include the use of CO as a dynamical tracer for the large scale circulation in the lower atmosphere. We investigate the possible use of H2O as a tracer for mesoscale convection within and below the clouds, and discuss the role of OCS in understanding the chemistry in the lower atmosphere.
This work was funded by STFC in the UK, as well as ASI and CNES from the PI institutes.

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