Journal
SCIENCE
Volume 312, Issue 5774, Pages 724-727Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1123257
Keywords
-
Categories
Ask authors/readers for more resources
The most recent Cassini RADAR images of Titan show widespread regions ( up to 1500 kilometers by 200 kilometers) of near-parallel radar-dark linear features that appear to be seas of longitudinal dunes similar to those seen in the Namib desert on Earth. The Ku-band (2.17-centimeter wavelength) images show similar to 100-meter ridges consistent with duneforms and reveal flow interactions with underlying hills. The distribution and orientation of the dunes support a model of fluctuating surface winds of similar to 0.5 meter per second resulting from the combination of an eastward flow with a variable tidal wind. The existence of dunes also requires geological processes that create sand-sized (100- to 300-micrometer) particulates and a lack of persistent equatorial surface liquids to act as sand traps.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available