Radar-Bright Valley (Titan)
A valley-like feature on Titan exhibiting high radar backscatter.
A type of valley-like feature (Titan)
Fluvial valleys on Titan have diverse morphologies with subclasses as defined by arid but cold climatic conditions. Dry valleys with lengths <300 km and width <8 km are observed. They appear radar-bright on Cassini SAR images because they are not filled with liquid but with sediments that are probably centimetric or even larger in size in the brightest valleys. They are similar to terrestrial desert washes (wadis), which suggests formation by sudden, episodic, and strong flow events in dry climatic conditions, followed by long dry periods. Outflow events may be induced by precipitation or sapping. Compared to valleys within integrated dendritic networks, Titan’s dry valleys are generally shorter and broader (Porco et al. 2005...
- Elachi C, Wall S, Allison M, Anderson Y, Boehmer R, Callahan P, Encrenaz P, Flamini E, Franceschetti G, Gim Y, Hamilton G, Hensley S, Janssen M, Johnson W, Kelleher K, Kirk R, Lopes R, Lorenz R, Lunine J, Muhleman D, Ostro S, Paganelli F, Picardi G, Posa F, Roth L, Seu R, Shaffer S, Soderblom L, Stiles B, Stofan E, Vetrella S, West R, Wood C, Wye L, Zebker H (2005) First views of the surface of Titan from the Cassini radar. Science 308:970–974CrossRefGoogle Scholar
- Jaumann R et al (2009) Geology and surface processes on Titan. In: Brown RH, Lebreton J-P, Waite JH (eds) Titan from Cassini-Huygens. Springer, Dordrecht, Heidelberg, London, New York, pp 75–140Google Scholar
- Paganelli F, Elachi C, Lopes RM, West RA, Stiles B et al (2005) Channels and fan-like features on Titan surface imaged by the Cassini RADAR. Lunar Planet Sci XXXVI, abstract # 2150, HoustonGoogle Scholar
- Porco CC, Baker E, Barbara J, Beurle K, Brahic A, Burns JA, Charnoz S, Cooper N, Dawson DD, Del Genio AD, Denk T, Dones L, Dyudina U, Evans MW, Fussner S, Giese B, Grazier K, Helfenstein P, Ingersol AP, Jacobson RA, Johnson TV, McEwen A, Murray CD, Neukum G, Owen WM, Perry J, Roatsch T, Spitale J, Squyres S, Thomas P, Tiscareno L, Turtle EP, Vasavada AR, Veverka J, Wagner R, West R (2005) Imaging of Titan from the Cassini spacecraft. Nature 434:159–168CrossRefGoogle Scholar