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Roger Clark Personal/Professional Page

Research Interests:

Surface composition of solid surfaces in the Solar System. Detection and mapping of minerals, organics, and other materials with imaging spectroscopy. Radiative transfer modeling. Laboratory spectroscopy. Instrument design and calibration, from lab to spacecraft.

Spacecraft Mission Experience:

Team member on the Cassini mission to Saturn, Visual and Infrared Mapping Spectrometer (active mission).

Co-Investigator on the Mars Reconnaissance Orbiter, Compact Reconnaissance Imaging Spectrometer for Mars, CRISM (active mission).

Co-Investigator on the Chandrayaan-1 Moon Mineralogy Mapper (completed 2010).

Co-Investigator on the NASA Mars Observer mission, Thermal Emission Spectrometer (Launch, 9/92), and replaced by the Mars Global Surveyor (launch 1996).

Adjunct member of the Galileo NIMS team.

Member of the Flight Investigation Team for the NASA Earth Observation System, High Resolution Imaging Spectrometer.

Team Member on the NASA Comet Rendezvous and Asteroid Fly-by mission, Visual and Infrared Mapping Spectrometer.

Team member on the Soviet Mars 94 joint US/France/USSR Omega-VIMS instrument.

Other Key Experience:

Led the USGS environmental assessment of the World Trade Center disaster using imaging spectroscopy and field sampling (2001-2002).

Led the investigation and derived new methods to determine how much oil was on the ocean's surface in a rapid response action to the 2010 Deepwater Horizon Gulf of Mexico oil spill.

Developed new algorithms for imaging spectroscopy analysis for detecting trace compounds in complex environments.

Led research on the optical properties of minerals for remote sensing applications on the Earth and planets.

Led research with imaging spectroscopy to map minerals, plants, and man-made materials on the Earth.

Made numerous discoveries throughout the Solar System as first author or co-author, including, adsorbed water and hydroxyl on the lunar surface, organic compounds and methane/ethane lakes on Saturn's moon Titan, water ice and the purity of ice on outer planet satellites and Saturn’s rings, phyllosilicate minerals on Mars and others.

Selected Publications.

Clark, R.N., 1999, Chapter 1: Spectroscopy of Rocks and Minerals and Principles of Spectroscopy, Manual of Remote Sensing, (A.N. Rencz, ed.) John Wiley and Sons, New York, p 3-58.

Clark, R.N., and 7 others, 2003, Imaging spectroscopy: Earth and planetary remote sensing with the USGS Tetracorder and expert systems, Journal of Geophysical Research, 108 (E12), 5131, doi:10.1029/2002JE001847, p. 5-1 to 5-44, 2003.

Clark, R.N., and 25 others, 2005, Compositional maps of Saturn's moon Phoebe from imaging spectroscopy, Nature, doi:10.1038/nature03558 May, 2005.

Clark, R.N., and 6 others, 2007, USGS digital spectral library splib06a: U.S. Geological Survey, Digital Data Series 231.

Clark, R.N., Curchin, J.M., Hoefen, T.M., and Swayze, G.A., 2009, Reflectance spectroscopy of organic compounds I: Alkanes: Journal of Geophysical Research, 114, p. E03001.

Clark, R. N., 2009, Detection of Adsorbed Water and Hydroxyl on the Moon, Science, 326, 562-564.

Clark, R. N., and 14 others, 2010, Detection and Mapping of Hydrocarbon Deposits on Titan, J. Geophys. Res., 115, E10005, doi:10.1029/2009JE003369.

Clark, and 15 others, 2010, A method for qualitative mapping of thick oil spills using imaging spectroscopy: USGS Open-File Report 2010-1101.

Clark, R. N., and 11 others, 2012, The Composition of Iapetus: Mapping Results from Cassini VIMS, Icarus, 218, 831–860,

Clark, R. N., and 4 others, 2014, Spectroscopy from Space, Chapter 10 in Spectroscopic methods in Mineralogy and Material Sciences, Reviews in Mineralogy & Geochemistry, Grant Henderson, ed, Mineralogical Society of America 78, 399-446.

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