Dr. David F. Nava

Laboratory for Extraterrestrial Physics, Code 691
NASA Goddard Space Flight Center
Greenbelt, MD 20771

Phone: (301) 286-5483

email: David.Nava@gsfc.nasa.gov

Present Position:

Astrophysicist, Astrochemistry Branch
Laboratory for Extraterrestrial Physics
NASA Goddard Space Flight Center

Additional Activities:

Associate Discipline Scientist: Planetary Materials and Geochemistry
Program/Cosmochemistry Program, NASA Headquarters - 1995 to present.

Associate Discipline Scientist: Origins of Solar Systems Program,
NASA Headquarters - 1996 to present.

Research Area Experience:

Analytical Chemistry/Analytical Geochemistry/Reaction Kinetics
(Photochemical and chemical kinetic reaction rate studies of planetary atmospheres, terrestrial stratosphere, and interstellar media; atomic absorption and spectrochemical methods of laboratory analyses; classical wet chemical procedures; methods development and applications thereof to chemical analyses of meteorites and lunar samples; scanning electron microscopy study of metallic particles in meteorite chondrules).

Education:

B. S., 1963, Northern Arizona University
Ph.D., 1968, Arizona State University

Previous Positions:

Chemist, City of Phoenix, Arizona, Department of Water and Sewers
- Summers of 1962, 1963 & 1964

Analytical Geochemist, Planetology Branch, NASA Goddard Space Flight Center - 4/68 to 1/74

Co-Investigator for Returned Lunar Samples - 1971-1974

Principal Investigator for Returned Lunar Samples - 1975-1977

Co-Investigator: "Upper Atmosphere Reaction Rate Measurements"
- NASA Upper Atmospheric Research Program - 1978 to 1993

Co-Investigator: "Chemical Kinetics of Planetary Molecules"
- NASA Planetary Atmospheres Program - 1978 to 1993

NASA Headquarters Representative on Antarctic Meteorite Steering Group - 1994 to 1996

NASA Headquarters Representative on Antarctic Meteorite Working Group and on Curation and Analysis Planning Team for Extraterrestrial Materials (CAPTEM) Working Group - 1994 to 1996

Professional Societies:

American Chemical Society
The Meteoritical Society
Society For Applied Spectroscopy

Honors:

1968 Sigma Xi
1978 NASA Special Achievement Award
1982 NASA Special Achievement Award
1987, 1995, 1996 NASA Exceptional Performance Award

Editorship:

Member of Editorial Board of International Journal: Chemical Geology 1973-1981

Selected Publications:

"Chemistry and Mineralogy of the Lost City Meteorite", (1971) D. F.Nava, L. S. Walter, A. S. Doan, Jr., J. Geophys. Res., 76, 4067-4071.

"A Lunar Differentiation Model in Light of New Chemical Data on Luna 20 and Apollo 16 Soils", (1973) D. F. Nava and J. A. Philpotts, Geochim. Cosmochim. Acta, 37, 963-973.

"Chemical Compositions of Some Soils and Rock Types from the Apollo 15, 16, and 17 Lunar Sites", (1974) D. F. Nava, Proc. Fifth Lunar Sci. Conf., Geochim. Cosmochim. Acta, Suppl. 5, 2, 1087-1096.

"Major, Minor and Trace Element Abundances in Samples from the Apollo 17 Station 7 Boulder: Implications for the Origin of Early Lunar Crustal Rocks", (1974) S. R. Winzer, D. F. Nava, S. Schuhmann, C. W. Kouns, R. K. L. Lum, and J.A.Philpotts, Earth Planet. Sci. Lett., 23, 439-444.

"The Reaction Cl + H₂CO --> HCl + HCO: Decreased Sensitivity of Stratospheric Ozone to Chlorine Perturbations", (1978) L. J. Stief, J. V. Michael, W. A. Payne, D. F. Nava, D. M. Butler, and R. S. Stolarski, Geophys. Res. Letts., 5, 829-831.

"Rate Constant for Reaction of Atomic Bromine with Formaldehyde from 223 to 480 K", (1981) D. F. Nava, J. V. Michael, and L. J. Stief, J. Phys. Chem., 85, 1896-1899.

"The Reaction H + C₄H₂: Absolute Rate Constant Measurement and Implication for Atmospheric Modeling of Titan", (1986) D. F. Nava, M. B. Mitchell, and L. J. Stief, J. Geophys. Res., 91, 4585-4589.

"Planetary Atmospheric Reaction Rate Kinetic Studies via Flash Photolysis - Resonance Fluorescence and Discharge Flow - Mass Spectrometry Methods", (1988) D. F. Nava, Society of Hispanic Professional Engineers Second Annual Eastern Technical and Career Conference. Washington, DC, p. 8.

"The Reaction of Atomic Hydrogen with Germane: Temperature Dependence of the Rate Constant and Implications for Germane Photochemistry in the Atmospheres of Jupiter and Saturn", (1993) D. F. Nava, W. A. Payne, G. Marston, and L. J. Stief, J. Geophys. Res., 98, 5531-5537.

"Shape, Size, and Distribution of Magnetic Particles in Bjurbole Chondrules", (1994) D. F. Nava, Lunar Planet. Sci., XXV, Lunar and Planetary Institute, Houston, p. 977.

Last Updated: Thursday, 21 August 2003 at 09:47:33 EST