HR: 14:10h
AN: S12C-02 INVITED     [PDF]
TI: Interferometric Imaging
AU: * Papanicolaou, G
EM: papanico@math.stanford.edu
AF: Department of Mathematics, Stanford University, Stanford, CA 94305 United States
AB: Seismic codas contain information about the environment in which the waves travel. How can this information be extracted and what can it be? I will present some recent work (jointly with L. Borcea and C. Tsogka) that models that behavior of cross correlations of seismic codas, which may also be called coda interferometry. I will use recent results about the time reversal of signals in randomly inhomegenous media which help delimit the information content of the cross correlations. I will also present the results of numerical simulations that illustrate the way in which interferometry can be used for imaging.
UR: http://georgep.stanford.edu
DE: 7260 Theory and modeling
SC: Seismology [S]
MN: 2003 Fall Meeting