HR: 0830h
AN: S41A-07    [Abstracts]
TI: Structures of Taipei basin from waveform inversion
AU: * Wen, S
EM: strong@eq.ccu.edu.tw
AU: Chen, C H
EM: seichen@eq.ccu.edu.tw
AB: The purpose of this research is to investigate 3D Vp, Vp/Vs structures beneath the Taipei basin area, Taiwan. We have performed the nonlinear waveform inversion for the velocity structures beneath the Taipei basin. The wave propagation modeling is carried out using a 3D precisely spectral element simulations, and the inversion is implemented by a neighbourhood algorithm, minimizing the misfit between synthetic and observed seismograms. Good results are obtained with both synthetic and observed data from our inversion. And we also obtain the high resolution of velocity structure especially in the shallow layer and get better understanding the complex structure beneath the Taipei basin area. These performs are highly parallel and easily be distributed across pc clusters. Finally, the results also shown how the computation time and memory requirements scale with the dimension of the parameter space and size of the ensemble.
DE: 1734 Seismology
SC: Seismology [S]
MN: 2005 Joint Assembly