Page 23 - April 2008

Kris Walker is currently a postdoctor- al researcher at the University of California, San Diego. During the last 11 years, he has been working on problems in solid earth and atmos- pheric geophysics involving active- and passive-source seismic imaging, seismic velocity anisotropy characteri- zation, potential field modeling, array- analysis techniques, and acoustic sen- sor development.
work has continued to the present. During this period, he gained experience in all aspects of the program at Los Alamos: field deployment and operations, data collection, signal processing, source modeling, wave propagation, and interpretation. In addition to underground tests, the program collected data on earthquakes, large conventional surface explosions, microbaroms, and a few other man made sources. The large surface explosions were in the range of a few kilotons of explosive.
Bob Woodward is the Director of the
EarthScope USArray project for the
Incorporated Research Institutions for
Seismology (IRIS). Prior to joining IRIS
he worked for Science Applications
International Corporation (SAIC), where
he managed a variety of geophysical
research and development projects,
advanced technology research and devel-
opment activities, and large-scale systems
integration efforts. Prior to his work with SAIC, Bob managed the Data Collection Center at the USGS Albuquerque Seismological Laboratory, collecting and managing data from the Global Seismographic Network. Bob earned a B.A. in Geophysics and Applied Mathematics from the University of California, Berkeley and a Ph.D. at Scripps Institution of Oceanography, University of California, San Diego,
Rodney Whitaker graduated from Indiana University, Bloomington, Indiana, with a Ph.D. in Astronomy in November, 1976. His work at Los Alamos National Laboratory began with a post-doctoral position in late 1976, and about one year later he became a technical staff member. For several years he worked on finite differ- ence simulations of atmospheric nuclear explosions and their effects.
These numerical calculations included radiation transport and hydrodynamics. This work also led to interesting calcu- lations related to star formation in inter-stellar molecular clouds. In the early 1980s, Dr. Whittaker began work on low frequency atmospheric acoustics or infrasound, and this
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Infrasound Calibration Experiments 21
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