Professor of Geophysics
Earth structure, wave propagation
Ph.D., 1967, Univ. of California, San Diego, USA
California Institute of Technology
Seismological Laboratory
1200 E. California Blvd., MS 252-21
So. Mudd Building, Rm 261
Pasadena, CA 91125
Phone:
(626) 395-6998
Fax: (626) 564-0715
Email: helm@gps.caltech.edu
Website: http://gps.divisions.caltech.edu/people/donald-v-helmberger
Seismic wave propagation and fine structures of the upper earth, as determined by P and S wave inversion; particularly interested in mapping ultra-low-velocity zones of the core-mantle boundary.
Director, Seismological Laboratory, 1998-2003
