Probing Titan's Upper Atmosphere: Observations from Cassini UVIS

Details Probing Titan's Upper Atmosphere: Observations from Cassini UVIS Probing Titan's Upper Atmosphere: Observations from Cassini UVIS

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..347k&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.347

Physics

Scientific paper

We use stellar occultation measurements from the Cassini UVIS instrument to determine the vertical profile of hydrocarbons and tholins in the upper Titan atmosphere. These measurements reveal spatial and seasonal variations in species densities, and improve our understanding of how photochemical processes convert methane (CH4) into heavier hydrocarbons. These reactions directly result in the observed density profiles and also, through transport, the layers of haze seen lower in the atmosphere.

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