Topography Driven Convective clouds on Titan: Results from Numerical Simulations

Details Topography Driven Convective clouds on Titan: Results from Numerical Simulations Topography Driven Convective clouds on Titan: Results from Numerical Simulations

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.3609b&link_type=abstract

American Astronomical Society, DPS meeting #42, #36.09; Bulletin of the American Astronomical Society, Vol. 42, p.1066

Astronomy and Astrophysics

Astronomy

Scientific paper

Cassini radar passes have detected a number of mountain ranges on Titan. Data indicates mean peak heights of about 900m. The flow of air over topographic features can both trigger and enhance cloud formation; mountains can provide the perturbations needed to trigger convective clouds. Using a range of heights and surface winds compatible with Cassini/Huygens data, the Titan Regional Atmospheric Modeling System (TRAMS) has shown that peaks as small as a few 100 meters can be a trigger for convection if the environment is sufficiently moist. The morphology of the clouds is similar to those reported from previous simulations triggered by a warm bubble. It is possible that these convective clouds produce enough precipitation to carve channels, if the cloud particles are able to coalesce to millimeter sizes.

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