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| Titel |
Titan : Topography Results from Cassini RADAR |
| VerfasserIn |
R. D. Lorenz, T.H.E. CassiniRadar Team |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250024476
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| Zusammenfassung |
| In addition to mapping with SAR imaging, the Cassini RADAR instrument
provides a number of other quantitative datasets that are yielding new
insights into Titan and the processes that shape it.
New topographic results include the recent altimetry profile across
Ontario Lacus, a hydrocarbon lake, showing that it is in a topographic
low, very flat and very reflective, consistent with a very smooth
liquid surface. Another emerging result is an estimate of the global
shape from combined altimetry and SARtopo, indicating that the polar
radius is smaller than the equatorial, perhaps a factor in the
prevalence of lakes at high latitudes. On the smaller scale,
topographic measurements are allowing the quantification of the shape
of the few observed craters and their ejecta, and of the relationship
between topographic and albedo features and the deflection of dune-
forming winds.
This invited talk summarizes some of these new results. |
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