Physics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.338..315c&link_type=abstract
In ESA, Symposium on Titan p 315-319 (SEE N92-32348 23-91)
Physics
Aerosols, Aggregates, Optical Properties, Photochemical Reactions, Satellite Atmospheres, Titan, Haze, Mathematical Models, Monomers, Morphology
Scientific paper
Recent development in the understanding of the morphology of haze aerosols in Titan's atmosphere, aggregate particles, and their associated optical properties are considered in the flight of a microphysical model of aerosols. Two different phases of the formation process are identified: initial growth of aerosols near the formation altitude by accretion of very small elementary particles; and (2) settling during which particles of about the same size stock together, leading to the formation of aggregates which contain some tens to several hundred monomers. The first phase leads to the formation of nearly spherical 'monomers' (radius approximately equal to 0.05 micrometers). An eulerian microphysical model is used. It is shown that the monomer radius is extremely sensitive to the altitude where aerosols are created. The formation altitude of aerosols is found to lie in the range from 350 to 400 km.
Cabane Michel
Chassefiere Eric
Israël Guy
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