- Ph.D., 1963, Indiana University
Rudman's research career has centered on computer applications in exploration geophysics and (lately) on earthquake seismology in the midcontinent. His work in potential fields includes inversion and analysis of gravity and magnetics (Indiana), heat flow modeling (Hawaii) and shallow resistivity and GPR studies (Indiana karst). His work in seismics includes application of reflection data to seismogram interpretation, velocity analysis utilizing well logging data and synthetic seismogram generation. More recently, he has been a part of an Indiana University team of researchers investigating midcontinent seismicity. Data were obtained from a twenty 3-component seismometer array in southern Indiana and Illinois. Ongoing research involves location of magnitude studies of local events.
An example of a ground-penetrating radar (GPR) survey line obtained in south-central Indiana. Groundwater contamination in the area may be controlled by conduits associated with karst features such as those shown within the yellow rectangle. The scatter shown within the purple rectangle is related to a topographic low.
Hart, D. and, Least-squares fit of an ellipse to Anisotropic Polar Data: Application to Azimuthal Resistivity Surveys in Karst regions: (1997). Computers and Geosciences, 23, p. 189-194.
Bear, G.W., J.A. Rupp, and, Seismic interpretation of the deep structure of the Wabash Valley Fault System: (1997). Seismological Research Letters, 68, p. 624-640.
Bear, G.W., H.J. Al-Shukri and, Linear inversion of gravity data for 3-D density distributions: (1995). Geophysics, 60, p. 1354-1364 .
, and J.A. Rupp, Geophysical properties of the basement rocks in Indiana: (1993). Ind. Geol. Surv. Spec. Rep. 55, 16p.
, S. Mallick, L.N. Frazer and P. Bromirski, Workstation computation of synthetic seismograms for vertical and horizontal profiles: A full wavefield response for a two-dimensional layered half-space: (1993). Computer and Geosciences, 19, p. 447-474.
Murat, M.M., and, Automated first annual picking: A neural network approach: (1992). Geophys. Prospecting, 40, p. 587-604.
Frazer, L.N., and, Seismic modeling in the Tau-p Domain: (1988). Indiana Geological Survey Occasional Paper 54. Geophysical Computer Program Series 12.
, and D. Epp, Conduction models of the temperature distribution in the east rift zone of Kilauea Volcano: (1983). Jour. of Volcanology and Geothermal Res., 16, p. 189-203.