Turtle et al. 2009
Turtle, E.P., J.E. Perry, A.S. McEwen, A.D. Del Genio, J. Barbara, R.A. West, D.D. Dawson, and C.C. Porco, 2009: Cassini imaging of Titan's high-latitude lakes, clouds, and south-polar surface changes. Geophys. Res. Lett., 36, L02204, doi:10.1029/2008GL036186.
Cassini's Imaging Science Subsystem (ISS) has been observing Titan since April 2004, compiling a nearly global surface map and monitoring the surface and atmosphere for activity. Early images of the south-polar region revealed numerous dark surface features and contemporaneous convective cloud systems, suggesting the presence of hydrocarbon lakes similar to those later detected at Titan's North Pole. Intriguingly, repeated south-polar imaging by ISS revealed differences consistent with ponding of hydrocarbon liquids on the surface due to precipitation from a large storm. More recent ISS images of high northern latitudes illustrate the full extents (>500,000 km2) of hydrocarbon seas, sections of which have been observed by Cassini's RADAR. These observations demonstrate dynamic processes at work on Titan and that the poles harbor liquid-hydrocarbon reservoirs, the extents of which differ from pole to pole and which may be coupled to seasonally varying circulation.
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Turtle, E.P., Perry, J.E., McEwen, A.S., Del Genio, A.D., Barbara, J., West, R.A., Dawson, D.D., and Porco, C.C.: Cassini imaging of Titan's high-latitude lakes, clouds, and south-polar surface changes, Geophys. Res. Lett., 36, L02204, doi:10.1029/2008GL036186, 2009.
Turtle, E.P., J.E. Perry, A.S. McEwen, A.D. Del Genio, J. Barbara, R.A. West, D.D. Dawson, and C.C. Porco (2009), Cassini imaging of Titan's high-latitude lakes, clouds, and south-polar surface changes, Geophys. Res. Lett., 36, L02204, doi:10.1029/2008GL036186.
Turtle, E.P., J.E. Perry, A.S. McEwen, A.D. Del Genio, J. Barbara, R.A. West, D.D. Dawson, and C.C. Porco, 2009: Cassini imaging of Titan's high-latitude lakes, clouds, and south-polar surface changes. Geophys. Res. Lett., 36, L02204, doi:10.1029/2008GL036186.
Turtle, E.P., Perry, J.E., McEwen, A.S., Del Genio, A.D., Barbara, J., West, R.A., Dawson, D.D., & Porco, C.C. 2009, Geophys. Res. Lett., 36, L02204, doi:10.1029/2008GL036186.
Turtle EP, Perry JE, McEwen AS, Del Genio AD, Barbara J, West RA, Dawson DD, Porco CC. Cassini imaging of Titan's high-latitude lakes, clouds, and south-polar surface changes, Geophys Res Lett 2009;36:L02204. doi:10.1029/2008GL036186.
E.P. Turtle, J.E. Perry, A.S. McEwen, A.D. Del Genio, J. Barbara, R.A. West, D.D. Dawson, C.C. Porco, Geophys. Res. Lett. 36, L02204, doi:10.1029/2008GL036186 (2009).
