Titan's topography, strange.... |
Titan's topography, strange.... |
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 ![]() |
Recent article in Science by Zebker et al.:
Zebker et al. Science in press, "Size and Shape of Saturn's Moon Titan". doi: 10.1126/science.1168905 (published online April 2, 2009) Link to abstract (pay-for article): http://www.sciencemag.org/cgi/content/abstract/1168905 Article on spaceref discusses this paper: http://www.spaceref.com/news/viewpr.html?pid=27912 Figure 3 from the Science article is a global elevation map relative to barycenter. Key points of article:
"Xanadu seems to be systematically lower than other parts of the equatorial belt, and not uplifted like most mountainous areas on Earth." (quote from Fig. 3 caption in article) -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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#2
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 ![]() |
If I remember correctly, the GCM wind field changes as Titan goes around Saturn (there is a tidal component). The average vectors predominate from one direction, then alternate with another that is roughly orthogonal.
I'm not sure how this all fits with the Huygens descent data (which also changed direction with altitude): Did the probe descend during a "typical" predominate wind day? Are the winds that Huygens encountered typical of the surface winds? What kind of winds do the banded clouds indicate? (And how do they relate to surface winds?) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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