4:30 PM-7:00 PM
Room: Ballroom A
The goal of linearized seismic inversion is the estimation of high-frequency perturbations in material earth parameters. Such estimates are complicated by a strongly heterogeneous subsurface medium. For example, strong velocity variations focus energy leading to shadow zones as well as complicated ray geometries. Mathematically, the inverse problem requires optimization algorithms that are flexible enough to handle vast amounts of data efficiently, can incorporate coordinate changes from acquisition to processing, and will reliably converge to a realistic earth model. The speakers in this minisymposium will present ideas for handling some of the difficulties encountered in solving the seismic inversion problem.
Organizers: Clifford J. Nolan
University of Washington
Susan E. Minkoff
Sandia National Laboratories, Albuquerque
MMD, 11/19/98