Physics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....7741b&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #7741
Physics
Scientific paper
Titan's temperature profile allows for the condensation of many of its trace gases throughout the troposphere and lower stratosphere. It is likely that cloud particles will be composed of a mixture of multiple volatile components surrounding a tholin core. We have developed a microphysics model to study the evolution of clouds composed of both methane and ethane in Titan's atmosphere. For ethane clouds only, nucleation occurs throughout Titan's troposphere and lower stratosphere (up to 60 km). Cloud particles are most abundant around 20 km. Methane cloud abundance peaks at a similar altitude. Methane cloud extinctions peak around 0.3 for a crititcal saturation up to 1.40. When both methane and ethane are permitted to condense onto tholin CN, the particles range in size from 0.1 - 1000 microns. Two cloud layers remain, at 15 and 35 km. The smallest particles (up to 0.3 microns) are predominantly ethane while larger particles can reach up to 99% methane. We will present here steady-state results with various scenarios from the ethane-methane cloud model.
Barth Erika L.
Toon Brian O.
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