Selby C. Cull

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New impact craters at five sites in the martian mid-latitudes excavated material from depths of decimeters that has a brightness and color indicative of water ice. Near-infrared spectra of the largest example confirm this composition, and repeated imaging showed fading over several months, as expected for sublimating ice. Thermal models of one site show(More)
Water probably flowed across ancient Mars, but whether it ever exists as a liquid on the surface today remains debatable. Recurring slope lineae (RSL) are narrow (0.5 to 5 meters), relatively dark markings on steep (25° to 40°) slopes; repeat images from the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment show them to appear and(More)
We discuss the DISORT-based radiative transfer pipeline (“CRISM_LambertAlb”) for atmospheric and thermal correction of MRO/CRISM data acquired in multispectral Manuscript received October 4, 2007; revised March 25, 2008. Current version published November 26, 2008. This work was supported by the National Aeronautics and Space Administration (NASA) through(More)
[1] The Mars Phoenix Lander was equipped with a 2.4 m Robotic Arm (RA) with an Icy Soil Acquisition Device capable of excavating trenches in soil deposits, grooming hard icy soil surfaces with a scraper blade, and acquiring icy soil samples using a rasp tool. A camera capable of imaging the scoop interior and a thermal and electrical conductivity probe were(More)
das, M.R. Kennedy, M. Mellon, D. Shean, I. Daubar, S. Cull, K.D. Seelos, S. Murchie, B. Cantor, R.E. Arvidson, K. Edgett, A. McEwen, T. Harrison, L. Posiolova, F.P. Seelos and the HiRISE, CTX and CRISM teams. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ; Malin Space Science Systems, San Diego, CA; Laboratory for Atmospheric and Space(More)
Introduction: A critical component to understanding the volatile inventory and climate of Mars is to understand the exchange of CO2 and H2O between the atmosphere and surface. The ability of the seasonal polar caps to trap up to 25% of the atmosphere during the winter months reinforces the important role these condensates play in meteorological processes(More)
and Soils. D. L. Blaney, D. Archer, R. Arvidson, S. Cull, M. Ellehoj, D. Fisher, M. Hecht, M. Lemmon, M. Mellon, R. Morris, T. Pike, P. Smith, C. Stoker, and the Phoenix Science Team.NASA Jet Propulsion Laboratory/California Institute of Technology, 4800 Oak Grove Drive, MS 264-422, Pasadena CA 91109, University of Arizona,(More)
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