Rebecca M. E. William

Rebecca M. (Eby) Williams

Planetary Science Institute

1700 East FortLowell, Suite 106, Tucson, AZ85719

(p) 520-622-6300 (e)

Education:PhD., 2000, Planetary Sciences,

WashingtonUniversity, St. Louis, MO

“Examination of martian outflow channels and valley network morphology using Mars Orbiter Laser Altimeter (MOLA) data”

B. A., 1995, Cum Laude, Joint Major: Physics and Geology, Minor: Astronomy

FranklinMarshallCollege, Lancaster, PA

Relevant Work History:

Planetary Science Institute, Tucson, AZ

2005-PresentResearch Scientist

Research interests are focused on the timing, magnitude and duration of fluvial activity in alluvial fans and recently recognized inverted channel networks.

Smithsonian Institution, Center for Earth and Planetary Science, Washington, DC

PresentVisiting Scientist

2004-2006Research Associate, Lindbergh Fellow

Research interests are focused on the history of water on Mars through quantitative and

qualitative characterization of martian landforms. Terresterial field studies of alluvial fans and debris flows for comparison with martian fan-shaped landforms.

Malin Space Science Systems, Inc., San Diego, CA

2002-2004Staff Scientist

2000-2002Post-Doctoral Research Associate

Mission operations for Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC), including targeting of narrow angle images of Mars. Research activities focus on quantitative geomorphology investigations of Martian channels and valleys through joint examination of MOC and Mars Orbiter Laser Altermiter (MOLA) data.

Research Grants:

  • Principle investigator, Mars Fundamental Research, NASA, “Assessing the Preservation of Fluvial Pathways in the Terrestrial Geologic Record: Analogs for the Investigation of Martian Raised Channels,“ July 1, 2006 – June 30, 2009.
  • Principle investigator, 2001 Odyssey Participating Scientist, NASA, “Morphological Investigations of Martian Fluvial Landforms with THEMIS” Apr. 1, 2006 – Mar. 31, 2007.
  • Principle investigator, Becker Endowment, Smithsonian Institution, “Morphometric Constrains on Alluvial Fan Formation.”Jan. 1, 2005 – Sep. 1, 2005.
  • Principle investigator, Mars Data Analysis Program (MDAP), NASA, “Characterization and Evolution of Mid-Latitude Martian Landforms,” Mar. 16, 2005 – Apr. 30, 2006.

Publications:

Peer-reviewed Journal Articles

Williams, R. M. E., J. R. Zimbelman, A. K. Johnston, 2006, Aspects of alluvial fan shape indicative of

formation process: A case study in southwestern California with application to Mojave Crater Fans on

Mars, GRL (in press).

Williams, R. M. E., K. S. Edgett, and M. C. Malin, 2006, Fans in Mojave Crater, Mars: Evidence for

impact-induced atmospheric precipitation, Icarus., (in review)

Williams, R. M. E., 2006, Variations in meter-scale surface textures with latitude in Deuteronilus Mensae,

Mars, Icarus, (in review).

Williams, R. M. E., and M. C. Malin, 2004, Possible late stage mudflows in Kasei Valles, J. Geophys.

Res.,104, E06001, doi:10.1029/2003JE002178.

Thomas, P. C., M. C. Malin, K. S. Edgett, P. B. James, B. A. Cantor. R. M. E. Williams, P. Gierasch,

2004, South polar residual cap of Mars: features, stratigraphy, and changes, Icarus, v.174, 535-559.

Edgett, K. S., R. M. E. Williams, M. C. Malin, B. A. Cantor, and P. C. Thomas, 2003, Mars landscape

evolution: Influence of stratigraphy on geomorphology in the north polar region, Geomorphology,

v. 52, no. 3-4, 289-297.

Phillips, R,. J., M. T. Zuber, S. C. Solomon, M. P. Golombek, B. M. Jakosky, R. M. E. Williams, B. M.

Hynek, O. Aharonson, and S. A. Hauck, II, 2001, Ancient Geodynamics and Global-Scale

Hydrology on Mars, Science, v. 291, 2587-2591.

Williams, R. M., and R. J. Phillips, 2000, Morphometric measurements of martian valley networks from

Mars Orbiter Laser Altimeter (MOLA) data, J. Geophys. Res., 106, E10, 23,737-23,751.

Williams, R. M., R. J. Phillips and M. C. Malin, 1999, Flow Rates and Duration within Kasei Valles,

Mars: Implications for the Formation of a MartianOcean, Geophys. Res. Lett.27, 1073-1076.

Merritts, D, Eby, R., Harris, R., Edwards, R. L., and Chang, H. 1998. Variable rates of Late Quaternary

surface uplift along the Banda-Arc-Australian plate collision zone, eastern Indonesia. In: Stewart,

I. S. and Vita-Finzi, C. (eds.) Coastal Tectonics. Geological Society, London, Special Publications,

146, 213-224.

Lunar and Planetary Science Conference Abstracts

Williams, R. M. E.,2006, Latitude-dependence of meter-scale textures in Deuteronilus Mensae, Mars,

LPSC XXVII, Abstract #1446

Burr, D. M., R. M. E. Williams, J. Nussbaumer, and J. R. Zimbelman, 2006, Multiple, distinct,

(glacio?)fluvial paleochannels throughout the western Medusae Fossae Formation, Mars, LPSC

XXVII, Abstract #1367.

Craddock, R. A., R. P. Irwin III, R. Williams, D. Swanson, A. D. Howard, C. Quantin, and J. R.

Zimbelman, 2006, Topical Martian field studies in the Ka’u Desert, Hawaii, LPSC XXVII,

Abstract #1384.

Williams, R. M. E., M. C. Malin, and K. S. Edgett, 2005, Remnants of the courses of fine-scale,

precipitation-fed runoff streams preserved in the martian rock record, LPSC XXXVI,Abs. #1173.

Williams, R. M. E., and K. S. Edgett, 2005, Valleys in the martian rock record, LPSC XXXVI, Abs. #1099.

Williams, R. M. E., K. S. Edgett, and M. C. Malin, 2004, Young fans in equatorial crater in Xanthe Terra,

Mars, LPSC XXXV, Abstract #1415.

Malin, M., K. Edgett, B. Cantor, M. Caplinger, S. Davis, E. Jensen, L. Lipkaman, B. Nixon, L. Posiolova,

J. Sandoval, K. Supulver, R. Williams, and R. Zimdar, 2004, Mars Global Surveyor Mars Orbiter

Camera in the Extended Mission: The MOC Toolkit, LPSC XXXV, Abstract #1189.

Thomas, P. C., M. C. Malin, K. S. Edgett, P. B. James, B. A. Cantor, and R. Williams, 2004, South polar

residual cap of Mars: Features, stratigraphy, and changes, 2004, LPSC XXXV, Abstract #1327.

Edgett, K. S., M. C. Malin, R. M. E. Williams, and S. D. Davis, 2003 Polar- and middle-latitude martian

gullies: A view from MGS MOC after 2 Mars years in the mapping orbit, LPSC XXXIV, Abstract

#1038.

Williams, R. M. E., and M. C. Malin, Possible late stage mudflows in Kasei Valles, 2002, LPSC XXXIII,

Abstract #1807.

B. M. Hynek, R. J. Phillips, D. C. Nunes, and R. M. Williams, 2001 Wide-scale denudation of Western

Arabia Terra, 2001, Lunar and Planetary Science, XXXII, Abstract #1178.

O. Aharonson, M. T. Zuber, D. H. Rothman, N. Schorghofer, R. J. Phillips and R. M. E. Williams, 2001,

Valley network morphology and topographic gradients on Mars, LPSC XXXII, Abstract #2153.

Williams, R. M., and R. J. Phillips, 2000, MartianValley Network Morphology, LPSC XXXI, Abstract

#1912.

Phillips, R. J., M. T. Zuber, S. A. Hauck, II, R. M Williams, and K. B. Portle, 2000, Why is There a

Negative Gravity Ring Around Tharsis? LPSC XXXI, Abstract #1303.

Williams, R. M. and R. J. Phillips, 1999, Flow Rates and Duration within Kasei Valles, Mars, LPSC XXX,

Abstract #1417.

Eby, R. M., R. E. Arvidson, and A. M. Hofmeister, 1998, Mars rover rock measurements in dusty

environments: Lessons learned from coated rocks in the southwestern United States, LPSC XXIX,

Abstract#1695.

Other Conference Abstracts

Quantin, C., Weitz, C., Williams, R. M. E., Dormart, G., and Mangold, N., 2006, “Paleo-Lake in Melas

Chasma (Valles Marineris) as a Possible landing site for MSL.” First Mars Science Lander Landing

Site Workshop Pasadena Conference, Convention Center, OldTownPasadena, CA,

May 31 - June 2.

Williams, R. M. E., 2006, Variations in meter-scale textures with latitude in Deuteronilus Mensae, Mars.

Mars Water Workshop, NASAAmesResearchCenter, February 23-24.

Williams, R. M. E., A. K. Johnston, and, J. R. Zimbelman, 2005, Topographic Profiles of Alpine Debris

Flows in the Central Front Range, Colorado: An Analog for ‘Mojave’ Crater Fans on Mars.

GSAAbstracts with Programs, 37 ( 7) Abstract #36-9.

Khurana, H. and R. M. E. Williams, 2005, Decameter-scale Surface Textures in Deuteronilus Mensae,

Mars;GSAAbstracts with Programs, 37 (7) Abstract #36-10.

Williams, R. M. E., J. R. Zimbelman and A. K. Johnston, 2005,Topographic Profiles of Terrestrial

Alluvial Fans in Southwestern California: An Analog for `Mojave' Crater Fans on Mars, Eos

Trans.,AGU, 86 (18), Jt. Assem. Suppl., Abstract #P21D-07.

Williams, R. M. E., and K. S. Edgett, 2004,MGS MOC perspectives on the role of fluids in impact crater

formation and modification, Eos Trans., AGU, 85 (47),Fall Meeting Supplement, Abstract P33B-03.

Williams, R. M. E., K. S. Edgett, M. C. Malin, and J. R. Zimbelman, 2004, Unique fan-shaped landforms

in Mojave Crater, Xanthe Terra, Mars, Workshop on MarsValley Networks, Kohala Coast,Hawaii,

(Smithsonian Institution), August 11-14.

Edgett, K. S., and R. M. E. Williams, 2004, Valleys and channels in the martian rock record, Workshop on

MarsValley Networks, Kohala Coast, Hawaii, (Smithsonian Institution), August 11-14.

Williams, R. M. and M. C. Malin, 2002, Evidence for mudflows in Kasei Valles, Mars, GSA Abstracts

with Programs, v. 34, no. 6, Abstract 32-8.

Edgett, K. S., M. C. Malin, and R. M. Williams, 2002, Middle- and polar-latitude gullies through the

second Mars year of MGS MOC observations, EOS Trans., AGU, 83, Abstract 72C-08, p. F843.

Williams, R. M., and R. J. Phillips, 1999, Re-examination of Circum-Chryse Outflow Channels with

MOLA data, GSA Abstracts with Programs, v. 31, no. 7, p. A-133.

Williams, R. M. and R. J. Phillips, 1999, Morphometry of Circum-Chryse outflow channels: Preliminary

results and implications. 5th International Mars Conference, Pasadena, CA, July 18-23.

Williams, R. M., R. J. Phillips, and M. C. Malin, 1998, New geomorphic mapping of Kasei Valles region,

Mars, using MOC and MOLA data, EOS Trans., AGU, 79, 531.

Eby, R. M., A. M. Hofmeister, and R. E. Arvidson, 1997, Determination of the skin depth for desert

varnish between 0.4 - 5.4 microns, GSA Abstracts with Programs, 29, 6, A-141.

Arvidson, R. E., W. Luo, J. Higdon, R. Eby, and E. Guinness, 1997, Mars - Transition from warm-wet to

icy-cold. Eos Trans. AGU, 78 (46) F405.

Eby, R. M., and D. J. Merritts, 1995, Late Quaternary uplift across the Banda Arc Collision Zone, Roti and

Semau Islands, Indonesia, GSA Abstracts with Programs, 27, A-55

Betts, B. H., R. M. Eby, and D. B. Nash, 1995, Infrared spectra of shocked quartz from Meteor Crater,

International Conference on Advanced Materials, Cancun, Mexico, August.

Betts, B. H., R. M. Eby, and D. B. Nash, 1994, Infrared spectra of shocked and unshocked quartz from

Meteor Crater, EOS Trans., AGU, 75, 416.

Schleicher, D. G., R. M. Eby, and L. A. Alciatore, 1994, The photometric behavior of Comet P/Halley in

1985, DPS meeting October 15-17, 1994, Boulder, CO.