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Abstract

Summary

Since the computational time of FDM is proportional to the number of grid points, many higher-order and optimized schemes were developed to increase the spatial grid size while maintaining the dispersion error below predefined levels. However, mentioned techniques are applicable only to homogeneous media since large error due to the interfaces may arise when the large grid spacing is used. To solve this problem, various effective medium parameterization methods have been proposed. In our work, We develop a new TTI effective media parameterization method and analyze existing different effective media parameterization methods. Our tests show that the proposed TTI effective media parameterization method is better than other effective media parameterization methods and can be used with the higher-order scheme to utilize 3–4 PPW to produce satisfactory results.spacing is used.

We develop a new TTI effective media parameterization method for

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/content/papers/10.3997/2214-4609.201900656
2019-06-03
2024-04-26

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References

  1. Bond, W.L.
    [1943] The mathematics of the physical properties of crystals. Bell Labs Technical Journal, 22(1), 1–72.
     [Google Scholar]
  2. Etgen, J.T. and O’Brien, M.J.
    [2007] Computational methods for large-scale 3D acoustic finite-difference modeling: A tutorial. Geophysics, 72(5), SM223–SM230.
     [Google Scholar]
  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.
     [Google Scholar]
  4. Kristek, J., Moczo, P., Chaljub, E. and Kristekova, M.
    [2017] An orthorhombic representation of a heterogeneous medium for the finite-difference modelling of seismic wave propagation. Geophysical Journal International, 208(2), 1250–1264.
     [Google Scholar]
  5. Kristeková, M., Kristek, J. and Moczo, P.
    [2009] Time-frequency misfit and goodness-of-fit criteria for quantitative comparison of time signals. Geophysical Journal International, 178(2), 813–825.
     [Google Scholar]
  6. Liu, Y.
    [2014] Optimal staggered-grid finite-difference schemes based on least-squares for wave equation modelling. Geophysical Journal International, 197(2), 1033–1047.
     [Google Scholar]
  7. Moczo, P., Kristek, J. and Gális, M.
    [2014] The finite-difference modelling of earthquake motions: waves and ruptures. Cambridge University Press, New York.
     [Google Scholar]
  8. Moczo, P., Kristek, J., Vavryuk, V., Archuleta, R.J. and Halada, L.
    [2002] 3D heterogeneous staggered-grid finite-difference modeling of seismic motion with volume harmonic and arithmetic averaging of elastic moduli and densities. Bulletin of the Seismological Society of America, 92(8), 3042–3066.
     [Google Scholar]
  9. Muir, F.
    [1992] Modeling elastic fields across irregular boundaries. Geophysics, 57(9), 1189.
     [Google Scholar]
  10. Stork, C.
    [2013] Eliminating Nearly All Dispersion Error from FD Modeling and RTM with Minimal Cost Increase. London, UK.
     [Google Scholar]
  11. Zhang, J.H. and Yao, Z.X.
    [2013] Optimized explicit finite-difference schemes for spatial derivatives using maximum norm. Journal of Computational Physics, 250, 511–526.
     [Google Scholar]
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A TTI Representation of a Heterogeneous Medium for Finite-Difference Seismic Wave Simulation
Conference Proceedings 2019, 1 (2019); https://doi.org/10.3997/2214-4609.201900656
/content/papers/10.3997/2214-4609.201900656
/content/papers/10.3997/2214-4609.201900656
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