The Sand Seas of Titan: Cassini RADAR Observations of Longitudinal Dunes-Reference-Cited by-同舟云学术

The Sand Seas of Titan: Cassini RADAR Observations of Longitudinal Dunes

Published:2006-05-05 Issue:5774 Volume:312 Page:724-727
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lorenz R. D.¹²³⁴⁵,Wall S.¹²³⁴⁵,Radebaugh J.¹²³⁴⁵,Boubin G.¹²³⁴⁵,Reffet E.¹²³⁴⁵,Janssen M.¹²³⁴⁵,Stofan E.¹²³⁴⁵,Lopes R.¹²³⁴⁵,Kirk R.¹²³⁴⁵,Elachi C.¹²³⁴⁵,Lunine J.¹²³⁴⁵,Mitchell K.¹²³⁴⁵,Paganelli F.¹²³⁴⁵,Soderblom L.¹²³⁴⁵,Wood C.¹²³⁴⁵,Wye L.¹²³⁴⁵,Zebker H.¹²³⁴⁵,Anderson Y.¹²³⁴⁵,Ostro S.¹²³⁴⁵,Allison M.¹²³⁴⁵,Boehmer R.¹²³⁴⁵,Callahan P.¹²³⁴⁵,Encrenaz P.¹²³⁴⁵,Ori G. G.¹²³⁴⁵,Francescetti G.¹²³⁴⁵,Gim Y.¹²³⁴⁵,Hamilton G.¹²³⁴⁵,Hensley S.¹²³⁴⁵,Johnson W.¹²³⁴⁵,Kelleher K.¹²³⁴⁵,Muhleman D.¹²³⁴⁵,Picardi G.¹²³⁴⁵,Posa F.¹²³⁴⁵,Roth L.¹²³⁴⁵,Seu R.¹²³⁴⁵,Shaffer S.¹²³⁴⁵,Stiles B.¹²³⁴⁵,Vetrella S.¹²³⁴⁵,Flamini E.¹²³⁴⁵,West R.¹²³⁴⁵

Affiliation:

1. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA.

2. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.

3. Proxemy Research, Bowie, MD 20715, USA.

4. U.S. Geological Survey, Flagstaff, AZ 86001, USA.

5. RADAR Team Leader, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.

Abstract

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 â¼100-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 â¼0.5 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference30 articles.

1. M. Allison, in Proceedings Symposium on Titan, Toulouse, France, 9-12 September 1991, B. Kaldeich, Ed. (European Space Agency SP-338, Noordwijk, Netherlands, 1992), pp. 113â118.

2. Wind as a Geological Process 1985

3. R. D. Lorenz, J. I. Lunine, J. A. Grier, M. A. Fisher, J. Geophys. Res. (Planets)88, 26377 (1995).

4. Lifting Titan's Veil 2002

5. Tidal Winds on Titan Caused by Saturn

Cited by 336 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Moisture transport and the methane cycle of Titan’s lower atmosphere;Icarus;2024-11

2. Detailed chemical composition analysis of the Soi crater region on Titan;Icarus;2024-10

3. Investigating palaeodune orientations and contemporary wind regimes in Southeast Kazakhstan using a semi‐automated mapping framework;Earth Surface Processes and Landforms;2024-08-29

4. Molecular Structure and Rotational Dynamics in the Acetonitrile:Acetylene (1:2) Plastic Co-crystal at Titan Conditions;ACS Earth and Space Chemistry;2024-08-06

5. Complementary classifications of aeolian dunes based on morphology, dynamics, and fluid mechanics;Earth-Science Reviews;2024-08