Titan's Surface By Radarlight

Details Titan's Surface By Radarlight Titan's Surface By Radarlight

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.4801e&link_type=abstract

American Astronomical Society, DPS meeting #38, #48.01; Bulletin of the American Astronomical Society, Vol. 38, p.574

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Scientific paper

Titan's surface is characterized at highest resolution by the Cassini Radar operating in synthetic-aperture (SAR) mode, and at larger scales in other radar modes and by other sensors. To date, about 10% of the surface has been imaged by SAR, enabling the classification of surface units based on radar backscatter, shape and texture. Further classification is possible through correlation with infrared data.
Of particular note are dark features interpreted as methane or methane/ethane lakes that seem to prefer high latitudes. Other surprisingly earthlike surface units are interpreted as impact craters, longitudinal dunes, cryovolcanics and channels. Other radar data suggest that at global scales, Titan's surface is predominantly a low dielectric material, variably penetrable by radar, with low (100 m to 1 km) relief. Overall, a young surface is revealed, with ample evidence of modification by wind, impact, moving liquid, and (probably) tectonics. In this talk we will review the available data, discuss correlations and differences with data from other sensors, and summarize work to date that relates observed phenomena to understanding the processes at work on the surface of this fascinating moon. This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

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