Finite-difference seismic simulation combining discontinuous grids with locally variable timesteps

Bulletin of the Seismological Society of America

Volumn 94, Issue 1, 2004, Pages 207-219

  Kang, Tae Seob ^a   Baag, Chang Eob ^a  

^a Seoul National University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; COMPUTATION THEORY; COMPUTER SIMULATION; REDUCTION; SEISMIC WAVES; STRESS ANALYSIS;

DISCONTINUOUS GRIDS; FIRST-ORDER VELOCITY-STRESS FORMULATIONS; LOW-VELOCITY REGION; SPATIAL SAMPLING RATIO;

FINITE DIFFERENCE METHOD;

COMPUTER SIMULATION; FINITE DIFFERENCE METHOD; SEISMIC WAVE; WAVE PROPAGATION;

EID: 1842853356     PISSN: 00371106     EISSN: None     Source Type: Journal    
DOI: 10.1785/0120030080     Document Type: Article

References (15)

1. Aoi, S., and H. Fujiwara (1999). 3D finite-difference method using discontinuous grids. Bull. Seism. Soc. Am. 89, 918-930.
2. Falk, J., E. Tessmer, and D. Gajewski (1998). Efficient finite-difference modelling of seismic waves using locally adjustable time steps, Geophys. Prospect. 46, 603-616.
3. Graves, R. W. (1996). Simulating seismic wave propagation in 3D elastic media using staggered-grid finite differences. Bull. Seism. Soc. Am. 86, 1091-1106.
4. Jastram, C., and E. Tessmer (1994). Elastic modeling on a grid with vertically varying spacing, Geophys. Prospect. 42, 357-370.
5. Hayashi, K., D. R. Burns, and M. N. Toksöz (2001). Discontinuous-grid finite-difference seismic modeling including surface topography, Bull. Seism. Soc. Am. 91, 1750-1764.
6. Igel, H. (1999). Wave propagation in three-dimensional spherical sections by the Chebyshev spectral method, Geophys. J. Int. 136, 559-566.
7. Levander, A. R. (1988). Fourth-order finite-difference P-SV seismograms. Geophysics 53, 1425-1436.
8. Moczo, P. (1989). Finite-difference technique for SH waves in 2-D media using irregular grids: application to the seismic response problem, Geophys. J. Int. 99, 321-329.
9. Moczo, P., J. Kristek, and L. Halada (2000). 3D fourth-order staggered-grid finite-difference schemes: stability and grid dispersion, Bull. Seism. Soc. Am. 90, 587-603.
10. Pilant, W. L. (1979). Elastic Waves in the Earth, Elsevier. Amsterdam.
11. Pitarka, A. (1999). 3D elastic finite-difference modeling of seismic motion using staggered grids with nonuniform spacing. Bull. Seism. Soc. Am. 89, 54-68.
12. Tessmer, E. (2000). Seismic finite-difference modeling with spatially varying time steps. Geophysics 65, 1290-1293.
13. Thomas, Ch., H. Igel, M. Weber, and F. Scherbaum (2000). Acoustic simulation of P-wave propagation in a heterogeneous spherical earth: numerical method and application to precursor waves to PKPdf, Geophys. J. Int. 141, 307-320.
14. Virieux, J. (1986). P-SV wave propagation in heterogeneous media: velocity-stress finite-difference method, Geophysics 51, 889-901.
15. Wang, Y., J. Xu, and G. T. Schuster (2001). Viscoelastic wave simulation in basins by a variable-grid finite-difference method, Bull. Seism. Soc. Am. 91, 1741-1749.