Computer Science – Sound
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...86..336t&link_type=abstract
Icarus (ISSN 0019-1035), vol. 86, Aug. 1990, p. 336-354. Research supported by NASA.
Computer Science
Sound
28
Astronomical Models, Dielectric Properties, Icy Satellites, Radar Measurement, Titan, Ammonia, Ethane, Ice, Methane, Organic Solids, Solar System, Water
Scientific paper
Radar sounding observations of Titan and the other outer solar system icy satellites have been conducted in order to ascertain the materials present, their dielectric properties, and the degree of radar signal penetration. Deep penetration is possible at long wavelengths, while strong reflections may occur due to pockets or layers of H2O-NH3 solution. Attention is given to the case of Titan, using models to calculate radar reflection S/N ratios; the models involve H2O ice covered by a 100-m thick layer of organic sediments that are overlain by an ocean of liquid CH4-C2H6-N2. At 13.6-cm wavelength, a greater-than-10 dB S/N is computed from the ocean-sediment and sediment-ice interfaces, suggesting that the geology of Titan may be investigated by such a sounding mode despite deep ocean coverage of the satellite.
Reid Thompson W.
Squyres Steven W.
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