Moist convective clouds in Titan's atmosphere

Details Moist convective clouds in Titan's atmosphere Moist convective clouds in Titan's atmosphere

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2491a&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 23, p. 2491-2494

Other

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Atmospheric Chemistry, Atmospheric Circulation, Atmospheric Moisture, Convection Currents, Planetary Atmospheres, Satellite Atmospheres, Titan, Vertical Air Currents, Atmospheric Models, Cumulus Clouds, Flow Velocity, Methane, Mixing Layers (Fluids), Trace Contaminants, Vertical Distribution

Scientific paper

We examine moist convection as a plausible mechanism for drilling large vertical motions and mixing in the troposphere of Titan. The model used here is based on that of Stoker (1986) for Jupiter - a one dimensional diagnostic model of cumulus clouds developed to calculate cloud temperature and vertical velocity profiles - incorporating an improved treatment of the drag effect of condensate on the buoyancy of the plumes. We find that under conditions plausible for the near surface of Titan, moist convection can occur with vertical velocity in excess of 1-13 m/s but that such plumes occupy only a very small fraction of the surface area of Titan. Nonetheless, we also find that such plumes may be the primary means of moving methane and other trace species from the surface into Titan's upper troposphere.

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