rodi@erl.mit.edu

William Rodi

Research Affiliate

PhD, Geophysics, Pennsylvania State U., 1989

Biographical Overview

Dr. Bill Rodi was a Principal Research Scientist in ERL/EAPS from 2001-2017 and remains a part of the lab as a Research Affiliate. He received a PhD in Geophysics from The Pennsylvania State University in 1989. Prior to joining ERL in 1990, he worked for eleven years as a research geophysicist at Maxwell Technologies (formerly S-Cubed) in San Diego, and for two years as a research scientist in the field of artificial intelligence at The George Washington University. Bill's primary research interest is geophysical inverse theory. His research focuses on numerical algorithms and methods of uncertainty analysis for nonlinear inverse problems in seismology and electromagnetics. Bill currently leads projects on seismic travel-time tomography and earthquake location applied to nuclear explosion monitoring.

Publications

O.V. Poliannikov, M. Fehler, W. Rodi, 2016, "Quantifying the uncertainty in fault plane solutions inferred from S/P amplitude ratios", SEG
A. Zamanian, W. Rodi, J.A. Kane, M. Fehler, 2015, "Iterative estimation of reflectivity and image texture: Least-squares migration with an empirical Bayes approach", GEOPHYSICS, 80, S113 - S126
A.H. Shabelansky, A.E. Malcolm, M. Fehler, X. Shang, W. Rodi, 2015, "Source-independent full wavefield converted-phase elastic migration velocity analysis", Geophysical Journal International, 200, 952 - 966
W. Rodi, S.C. Myers, 2013, "Computation of traveltime covariances based on stochastic models of velocity heterogeneity", Geophysical Journal International, 194, 1582 - 1595
J. Li, H. Zhang, W. Rodi, M.N. Toksoz, 2013, "Joint microseismic location and anisotropic tomography using differential arrival times and differential backazimuths", Geophysical Journal International, 195, 1917 - 1931
W. Rodi, R.L. Mackie, 2012, "The Inverse Problem (Chapter 8 of "The Magnetotelluric Method: Theory and Practice")", The Magnetotelluric Method: Theory and Practice
W. Rodi, 2006, "Grid-search event location with non-Gaussian error models", Physics of the Earth and Planetary Interiors, 158(1): 55-66
J.R. Murphy, W. Rodi, M. Johnson, D.D. Sultanov, T.J. Bennett, M.N. Toksoz, V. Ovtchinnikov, B.W. Barker, D.T. Reiter, A.C. Rosca, Y. Shchukin, 2005, "Calibration of international monitoring system (IMS) stations in central and eastern Asia for improved seismic event location", Bulletin of the Seismological Society of America, 95: 1535-1560
D.T. Reiter, W. Rodi, M. Johnson, 2005, "Development of a tomographic upper mantle velocity model beneath Pakistan and northern India for improved regional seismic event location", Bulletin of the Seismological Society of America, 95: 926-940
Y. Sun, S. Kuleli, W. Rodi, F.Dale Morgan, M.N. Toksoz, W. Han, Z. Lu, 2004, "Location robustness of earthquakes in Sichuan Province, China", Seismological Research Letters, 75(1): 54-62
W. Rodi, R.L. Mackie, 2001, "Nonlinear conjugate gradients algorithm for 2-D magnetotelluric inversion", Geophysics, 66: 174-187
W. Rodi, M.N. Toksoz, 2000, "Grid-search techniques for seismic event location", Proceedings, 22nd Annual DoD/DOE Seismic Research Symposium, New Orleans, Defense Threat Reduction Agency (DTRA)
R.A. Bennett, W. Rodi, R.E. Reilinger, 1996, "Global Positioning System constraints on fault slip rates in southern California and northern Baja, Mexico", Journal of Geophysical Research: Solid Earth, 21943 - 21960
D.Thompson Reiter, W. Rodi, 1996, "Nonlinear waveform tomography applied to crosshole seismic data", GEOPHYSICS, 61, 902 - 913