Thomas G. Farr

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Global-scale topographic data are of fundamental importance to many Earth science studies, and obtaining these data are a priority for the Earth science community. Several groups have considered the requirements for such a data set, and a consensus assessment is that many critical studies would be enabled by the availability of a digital global topographic(More)
[1] 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 (l = 2 cm) and show morphological evidence for active material(More)
Titan’s enigmatic Xanadu province has been seen in some detail with instruments from the Cassini spacecraft. The region contains some of the most rugged, mountainous terrain on Titan, with relief over 2000 m. Xanadu contains evolved and integrated river channels, impact craters, and dry basins filled with smooth, radar-dark material, perhaps sediments from(More)
[1] We quantify fore-arc deformation using fossil reefs to test the assumption commonly made in seismic cycle models that anelastic deformation of the fore arc is negligible. Elevated coral microatolls, paleoreef flats, and chenier plains show that the Sumatran outer arc island of Nias has experienced a complex pattern of relatively slow long-term uplift(More)
E.R. Stofan, T. Farr, R.L. Kirk, R.M. Lopes, R. Lorenz, J.I. Lunine, K.L. Mitchell, P. Paillou, J. Radebaugh, S.W. Wall, C.A. Wood, and the Cassini Radar Team. Proxemy Research, PO Box 338, Rectortown VA 20140 ellen@proxemy.com , Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109, 3 USGS Flagstaff AZ 86001, Space Dept., Johns(More)
XANADU PROVINCE. J. Radebaugh, P. Valora, R.D. Lorenz, S.D. Wall, R.L. Kirk, C.A. Wood, J.I. Lunine, E.R. Stofan, R.M. Lopes, T.G. Farr, G. Mitri, and the Cassini Radar Team. Department of Geological Sciences, Brigham Young University, Provo, UT 84602, jani.radebaugh@byu.edu, Johns Hopkins Applied Physics Laboratory, Laurel, MD 20723. Jet Propulsion(More)
Radebaugh R.D. Lorenz, T. G. Farr, R. L. Kirk, J. I. Lunine, D. Ventra, A. Le Gall, R. M. C. Lopes, J. W. Barnes, A. Hayes, E. R. Stofan, S. D. Wall, C. Wood. Department of Geological Sciences, Brigham Young University, Provo, UT 84602 (janirad@byu.edu); Johns Hopkins Applied Physics Laboratory, Laurel, MD; Jet Propulsion Laboratory, Pasadena, CA; USGS(More)
F. Paganelli, Jakob van Zyl, M.A. Janssen, B. Stiles, R. West, R. M. Lopes, E. Stofan, P. Callahan, L. Roth, S.D. Wall, T.G. Farr, C. Elachi, R.D. Lorenz, L. Soderblom, and the Radar Team, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109. U.S.A. (flora.paganelli@jpl.nasa.gov), Proxemy Research, Bowie, MD 20715, U.S.A., RADAR(More)
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