Articles | Volume 5, issue 2
Method article
26 Nov 2014
Method article |  | 26 Nov 2014

Wave-equation-based travel-time seismic tomography – Part 1: Method

P. Tong, D. Zhao, D. Yang, X. Yang, J. Chen, and Q. Liu

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Cited articles

Aki, K. and Lee, W.: Determination of the three-dimensional velocity anomalies under a seismic array using first P arrival times from local earthquakes 1. A homogeneous intial model, J. Geophys. Res., 81, 4381–4399, 1976.
Aki, K. and Richards, P. G.: Quantitative Seismology: Theory and Methods, 2nd edn., University Science Books, 2002.
Akram, J.: Automatic P-wave arrival time picking method for seismic and micro-seismic data, CSPG CSEG CWLS Convention, 2011.
Aster, R. C., Borchers, B., and Thurber, C. H.: Parameter Estimation and Inverse Problems, 2nd edn., Academic Press, 2012.
Baer, M. and Kradolfer, U.: An automatic phase picker for local and teleseismic events, B. Seismol. Soc. Am., 77, 1437–1445, 1987.
Short summary
A wave-equation-based travel-time seismic tomography method is developed including a detailed description of its step-by-step process. The forward problem is solved in the two-dimensional (2-D) vertical plane passing through the source and the receiver, and the final model is parameterized on 3-D inversion grid nodes. This 2-D--3D tomography method takes into account finite-frequency effects, accurately simulates seismic wave propagation in complex media, and has great computational efficiency.