WALL, S.; HAYES, A.; BRISTOW, C.; LORENZ, R.; STOFAN, E.; LUNINE, J.; LE GALL, Alice; JANSSEN, M.; LOPES, R.; WYE, L.; SODERBLOM, L.; PAILLOU, Philippe; AHARONSON, O.; ZEBKER, H.; FARR, T.; MITRI, G.; KIRK, R.; MITCHELL, K.; NOTARNICOLA, C.; CASARANO, D.; VENTURA, B.

doi:10.1029/2009GL041821

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WALL, S.
Jet Propulsion Laboratory [JPL]

HAYES, A.
Caltech Division of Geological and Planetary Sciences

BRISTOW, C.
Department of Earth and Planetary Sciences [Birkbeck]

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Geophysical Research Letters. 2010-03, vol. 37, p. 05202

American Geophysical Union

Résumé en anglais

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.< Réduire

Mots clés en anglais

Planetary Sciences: Solid Surface Planets: Hydrology and fluvial processes

Planetary Sciences: Solid Surface Planets: Surface materials and properties

Planetary Sciences: Solid Surface Planets: Remote sensing

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

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