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Waveform inversion for detailed 3-D Earth structure is increasingly
important approach for seismology. Our group developed an accurate
and efficient computational method, the Direct Solution Method (DSM; Geller
& Takeuchi 1995 etc.), and waveform inversion based on accurate synthetic
seismograms for 3-D heterogeneous Earth model became feasible. Also,
we recently developed a sophisticated data weigthing method to improve
the resultant Earth model (Takeuchi & Kobayashi 2004). Using
these methods, we hope to reveal detailed elastic and anelastic properties
of the Earth in the near future.
<Reference>
- Takeuchi, N. and Kobayashi, M., 2004. Improvement of
seismological earth models by using data weighting in waveform inversion,
Geophys. J. Int.,
158, 681-694.
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