Personal Information
Birth: January 23, 1944 Marshall, Texas

Education

Ph.D. Geophysics & Space Physics 1983 University of California, Los Angeles
M.S. Geophysics & Space Physics 1981 University of California, Los Angeles
M.S. Electrical Engineering 1970 Princeton University
B.S. Electrical Engineering 1968 Texas Tech University

Professional Employment

• University of California, Los Alamos National Laboratory, Theoretical Division, Technical Staff Member, 2/84 to 6/04
• Rockwell International, Rocketdyne Division, Laser Department, Member of Technical Staff and Consultant, 6/78-1/84
• U. S. Air Force, Air Force Weapons Laboratory, Laser Division, Kirtland AFB, NM, Project Officer, 1/71-5/75

Active Professional Collaborations

• John Sanford, Department of Horticultural Sciences, Cornell University.
• Hans-Peter Bunge, Department of Earth and Environmental Sciences, Ludwig Maximillians University, Munich, Germany.
• Uwe Walzer, Geophysical Institute, Friedrich Schiller University, Jena, Germany.
• David R. Stegman, Faculty of Science, School of Geosciences, Monash University, Victoria, Australia.

Current Research Interests

Numerical simulation of planetary mantle dynamics, nonlinear rheological behavior, and population genetics.

Selected Publications

• J. Sanford, J. Baumgardner, W. Brewer, P. Gibson, and W. Remine. Mendel's Accountant: A biologically realistic forward-time population genetics program. Scalable Computing: Practice and Experience. 8(2), July 2007, pp. 147-165.
• J. Sanford, J. Baumgardner, W. Brewer, P. Gibson, and W. Remine. Using computer simulation to understand mutation accumulation dynamics and genetic load, in Y. Shi et al. (eds.), ICCS 2007, Part II, LNCS 4488, Springer-Verlag, Berlin, Heidelberg, pp. 386-392.
• D. R. Stegman, A.M. Jellinek, S. A. Zatman, J. R. Baumgardner, and M. A. Richards, “An early lunar core dynamo driven by thermochemical mantle convection,” Nature, 421, 143-146, 2003.
• H.-P. Bunge, M. A. Richards, and J. R. Baumgardner, “Mantle-circulation models with sequential data assimilation: inferring present-day mantle structure from plate-motion histories,” Phil. Trans. R. Soc. Lond. A., 360, 2545-2567, 2002.
• D. A. Randall, T. D. Ringler, R. P. Heikes, P. Jones, and J. Baumgardner, “Climate Modeling with Spherical Geodesic Grids,” Computing in Science and Engineering, 4(5), 32-41, 2002.
• C. C. Reese, V. S. Solomatov, and J. R. Baumgardner, “Survival of impact-induced thermal anomalies in the Martian mantle,” J. Geophys. Res.- Planets, 107(10), 5082-5092, 2002.
• D. Majewski, D. Liermann, P. Prohl, B. Ritter, M. Buchhold, T. Hanisch, G. Paul, W. Wergen, and J. Baumgardner, “The global icosahedral-hexagonal grid point model GME: Operational version and high resolution tests,” Mon. Wea. Rev., 130, 319-338, 2002.
• M. A. Richards, W.-S. Yang, and J. R. Baumgardner, “The role of a low viscosity zone in stabilizing plate tectonics: implications for comparative terrestrial planetology,” Geochem., Geophys., Geosys., 2, 2001.
• J. K. Dukowicz and J. R. Baumgardner, Incremental remapping as a transport/advection algorithm,” J. Comp. Phys., 160, 318-335, 2000.