Active shoreline of Ontario Lacus, Titan: A morphological study of the lake and its surroundings - Archive ouverte HAL Access content directly
Journal Articles Geophysical Research Letters Year : 2010

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

R. Lorenz
E. Stofan
  • Function : Author
J. Lunine
Alice Le Gall
M. Janssen
L. Wye
  • Function : Author

Abstract

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.
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hal-00495897 , version 1 (10-09-2021)

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S. Wall, A. Hayes, C. Bristow, R. Lorenz, E. Stofan, et al.. Active shoreline of Ontario Lacus, Titan: A morphological study of the lake and its surroundings. Geophysical Research Letters, 2010, 37, pp.05202. ⟨10.1029/2009GL041821⟩. ⟨hal-00495897⟩

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