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Active shoreline of Ontario Lacus, Titan: a morphological study of the lake and its surroundings

Wall, S. and Hayes, A. and Bristow, Charlie S. and Lorenz, R. and Stofan, Ellen R. and Lunine, J. and le Gall, A. and Janssen, M. and Lopes, R. and Wye, L. and Soderblom, L. and Paillou, P. and Aharonson, O. and Zebker, H. and Farr, T. and Mitri, G. and Kirk, R. and Mitchell, K. and Notarnicola, C. and Casarano, D. and Ventura, B. (2010) Active shoreline of Ontario Lacus, Titan: a morphological study of the lake and its surroundings. Geophysical Research Letters 37 (5), ISSN 0094-8276.

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Of more than 400 filled lakes now identified on Titan, the first and largest reported in the southern latitudes is Ontario Lacus, which is dark in both infrared and microwave. Here we describe recent observations including synthetic aperture radar (SAR) images by Cassini's radar instrument (λ = 2 cm) and show morphological evidence for active material transport and erosion. Ontario Lacus lies in a shallow depression, with greater relief on the southwestern shore and a gently sloping, possibly wave-generated beach to the northeast. The lake has a closed internal drainage system fed by Earth-like rivers, deltas and alluvial fans. Evidence for active shoreline processes, including the wave-modified lakefront and deltaic deposition, indicates that Ontario is a dynamic feature undergoing typical terrestrial forms of littoral modification.

Item Type: Article
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Earth and Planetary Sciences
Depositing User: Administrator
Date Deposited: 14 Dec 2010 09:24
Last Modified: 17 Apr 2013 12:18

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