Definition
A valley-like feature on Titan exhibiting high radar backscatter.
Category
A type of valley-like feature (Titan)
Description
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;...
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References
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 308:970–974
Jaumann R et al (2008) Fluvial erosion and post-erosional processes on Titan. Icarus 197:526–538. doi:10.1016/j.icarus.2008.06.002
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 75–140
Langhans MH, Jaumann R, Stephan K et al (2012) Titan’s fluvial valleys: morphology, distribution, and spectral properties. Planet Space Sci 60:34–51
Le Gall A, Janssen MA, Lorenz RD, Paillou P, Wall SD, The Cassini Radar Team (2010) Radar-bright channels on Titan. Icarus 207:948–958
Lopes RMC et al (2010) Distribution and interplay of geologic processes on Titan from Cassini radar data. Icarus 205:540–558. doi:10.1016/j.icarus.2009.08.010
Lorenz RD et al (2008) Fluvial channels on Titan: initial Cassini RADAR observations. Planet Space Sci 56:1132–1144. doi:10.1016/j.pss.2008.02.009
Lunine JI, Atreya SK (2008) The methane cycle on Titan. Nat Geosci 1:159–164. doi:10.1038/ngeo125
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, Houston
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 434:159–168
Soderblom LA et al (2007) Correlations between Cassini VIMS spectra and RADAR SAR images: implications for Titan’s surface composition and the character of the Huygens Probe Landing Site. Planet Space Sci 55:2025–2036. doi:10.1016/j.pss.2007.04.014
Tomasko MG et al (2005) Rain, winds and haze during the Huygens probe’s descent to Titan’s surface. Nature 438:765–778
Turtle EP, Perry JE, Hayes AG, Lorenz RD et al (2011) Rapid and extensive surface changes near Titan’s equator: evidence of April showers. Science 331:1414–1417. doi:10.1126/science.1201063
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Jaumann, R., Langhans, M., Le Gall, A. (2015). Radar-Bright Valley (Titan). In: Hargitai, H., Kereszturi, Á. (eds) Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3134-3_123
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DOI: https://doi.org/10.1007/978-1-4614-3134-3_123
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