HR: 1330h
AN: S22B-0442    [PDF]
TI: Characterization of Dispersive Rayleigh Waves Using Wavelet Transform.
AU: * Diallo, M S
EM: mamadou@math.uni-potsdam.de
AF: University of Potsdam, Mathematics Institute, Am Neuen Palais 10, Potsdam, 14669 Germany
AU: Holschneider, M
EM: hols@math.uni-potsdam.de
AF: University of Potsdam, Mathematics Institute, Am Neuen Palais 10, Potsdam, 14669 Germany
AU: Scherbaum, F
EM: fs@geo.uni-potsdam.de
AF: University of Potsam, faculty of geoscience, Karl-Liebnecht str. 24-25, Potsdam, 14414 Germany
AU: Kulesh, M
EM: mkulesh@math.uni-potsdam.de
AF: University of Potsdam, Mathematics Institute, Am Neuen Palais 10, Potsdam, 14669 Germany
AB: This contribution covers various aspect of the characterization of dispersive Rayleigh waves using the Continuous Wavelet Transform (CWT). We particularly show how to use the CWT with multicomponent seismic data to extract time and frequency dependent polarization attributes. In addition, we investigate the inverse problem that aims at finding the operator governing the evolution in wavelet space of a propagating dispersive Rayleigh wave. We show how the application of this operator allows the simultaneous determination of the phase- and group-velocity dispersion curve and to some extent the associated attenuation characteristics of the propagation medium.
UR: http://www.math.uni-potsdam.de/~mamdou
DE: 7255 Surface waves and free oscillations
SC: Seismology [S]
MN: 2003 Fall Meeting