Go to Page Main Content
NASA - Goddard Institute for Space Studies + NASA Portal
+ Goddard Space Flight Center
+ GSFC Earth Sciences Division
FIND IT @ NASA
NASA Homepage Goddard Institute for Space Studies

ABSTRACT

Stofan et al. 2006

Stofan, E.R., J.I. Lunine, R. Lopes, F. Paganelli, R.D. Lorenz, C.A. Wood, R. Kirk, S. Wall, C. Elachi, L.A. Soderblom, S. Ostro, M. Janssen, J. Radebaugh, L. Wye, H. Zebker, Y. Anderson, M. Allison, R. Boehmer, P. Callahan, P. Encrenaz, E. Flamini, G. Francescettik, Y. Gim, G. Hamilton, S. Hensley, W.T.K. Johnson, K. Kelleher, D. Muhleman, G. Picardi, F. Posa, L. Roth, R. Seu, S. Shaffer, B. Stiles, S. Vetrella, and R. West, 2006: Mapping of Titan: Results from the first Titan radar passes. Icarus, 185, 443-456, doi:10.1016/j.icarus.2006.07.015.

The first two swaths collected by Cassini's Titan Radar Mapper were obtained in October of 2004 (Ta) and February of 2005 (T3). The Ta swath provides evidence for cryovolcanic processes, the possible occurrence of fluvial channels and lakes, and some tectonic activity. The T3 swath has extensive areas of dunes and two large impact craters. We interpret the brightness variations in much of the swaths to result from roughness variations caused by fracturing and erosion of Titan's icy surface, with additional contributions from a combination of volume scattering and compositional variations. Despite the small amount of Titan mapped to date, the significant differences between the terrains of the two swaths suggest that Titan is geologically complex. The overall scarcity of impact craters provides evidence that the surface imaged to date is relatively young, with resurfacing by cryovolcanism, fluvial erosion, aeolian erosion, and likely atmospheric deposition of materials. Future radar swaths will help to further define the nature of and extent to which internal and external processes have shaped Titan's surface.

Citation Styles

Show: ACP, AGU, AMS, ApJ, JQSRT, Science style

+ GISS Home

PUBLICATIONS
  • Publications Main Page
  • Authors
  • GISS Best Publication Award
  • Dissertations
  • Advanced Search
  • Publications Help
USA.gov

End of Page