References to SW3D papers related to individual models of package DATA

Model with a lenticular inclusion (LEN)

• Cerveny, V., Klimes, L. & Psencik, I. (1988): Complete seismic-ray tracing in three-dimensional structures. In: Doornbos, D.J. (ed.), Seismological Algorithms, pp. 89-168, Academic Press, New York.
  Model with a lenticular inclusion is designed as an example of constructing a velocity model.
• Klimes, L. & Kvasnicka, M. (1994): 3-D network ray tracing. Geophys. J. int., 116, 726-738.
  Calculation of travel times by packages NET and CRT.
• Klimes, L. (1995): Examples of seismic models. In: Seismic Waves in Complex 3-D Structures, Report 3, Dep. Geophys., Charles Univ., Prague, pp. 5-35, online at "http://sw3d.cz".
  Detailed description of the model with a lenticular inclusion and of input data.
• Bulant, P. (1996): Two-point ray tracing and controlled initial-value ray tracing in 3-D heterogeneous block structures. In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 61-75, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of two-point diffracted rays in the model with a lenticular inclusion.
• Bulant, P. (1996): Two-point ray tracing in 3-D. Pure appl. Geophys., 148, 421-447.
  Two-point ray tracing in the model with a lenticular inclusion.
• Bulant, P. (1997): 3-D two-point ray tracing in pictures. In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 63-70, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of weakly refracted two-point rays in the model with a lenticular inclusion.
• Bulant, P. (1997): Calculation of multivalued ray-theory travel times at nodes of 3-D grids. In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 71-74, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of multivalued ray-theory travel times at nodes of 3-D grids by the interpolation within ray tubes in the model with a lenticular inclusion.
• Bulant, P. (1999): Two-point ray-tracing and controlled initial-value ray-tracing in 3-D heterogeneous block structures. J. seism. Explor., 8, 57-75.
  Calculation of two-point diffracted rays in the model with a lenticular inclusion.

Preliminary Reference Earth Model (PREM)

Model with homogeneous layers (ELF1, MI)

• Klimes, L. (1995): Examples of seismic models. In: Seismic Waves in Complex 3-D Structures, Report 3, Dep. Geophys., Charles Univ., Prague, pp. 5-35, online at "http://sw3d.cz".
  Detailed description of the model with homogeneous layers and of input data.

Salt dome models (SD1 and SD2)

• Klimes, L. (1995): Examples of seismic models. In: Seismic Waves in Complex 3-D Structures, Report 3, Dep. Geophys., Charles Univ., Prague, pp. 5-35, online at "http://sw3d.cz".
  Detailed description of salt dome models SD1 and SD2 and of input data.

Model with interface slitted by a curved vertical fault (SLIT)

• Bulant, P. and Klimes, L. (1996): Examples of seismic models. Part 2. In: Seismic Waves in Complex 3-D Structures, Report 4, Dep. Geophys., Charles Univ., Prague, pp. 39-52, online at "http://sw3d.cz".
  Detailed description of the model with interface slitted by a curved vertical fault and of input data.

Western Bohemia a priori model (WB2)

• Klimes, L. (1995): Examples of seismic models. In: Seismic Waves in Complex 3-D Structures, Report 3, Dep. Geophys., Charles Univ., Prague, pp. 5-35, online at "http://sw3d.cz".
  Detailed description of the Western Bohemia a priori model and of input data.
• Bulant, P. (1996): Two-point ray tracing in 3-D. Pure appl. Geophys., 148, 421-447.
  Two-point ray tracing in the Western Bohemia a priori model.
• Klimes, L. (1996): Correlation function of a self-affine random medium In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 25-38, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Estimation of correlation functions in Western Bohemia region using the travel times from refraction measurements. First version of the paper.
• Klimes, L. (2001): Estimating the correlation function of a self-affine random medium In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 111-131, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Estimation of correlation functions in Western Bohemia region using the travel times from refraction measurements. Revised version of the paper.
• Klimes, L. (2002): Estimating the correlation function of a self-affine random medium Pure appl. Geophys., 159, 1833-1853.
  Estimation of correlation functions in Western Bohemia region using the travel times from refraction measurements. Final version of the paper.

Model of a real geological structure (L7)

• Bulant, P. and Klimes, L. (1996): Examples of seismic models. Part 2. In: Seismic Waves in Complex 3-D Structures, Report 4, Dep. Geophys., Charles Univ., Prague, pp. 39-52, online at "http://sw3d.cz".
  Detailed description of this velocity model and of input data.
• Bulant, P. (1996): Two-point ray tracing and controlled initial-value ray tracing in 3-D heterogeneous block structures. In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 61-75, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Two-point ray tracing of reflected rays in the model.
• Bulant, P. (1997): Recent development of the shooting algorithm. In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 55-62, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Two-point ray tracing of reflected rays in the model, comparison of different versions of the ray tracing code.
• Bulant, P. (1999): Two-point ray-tracing and controlled initial-value ray-tracing in 3-D heterogeneous block structures. J. seism. Explor., 8, 57-75.
  Two-point ray tracing in this velocity model.

Gridded 2-D Marmousi model (MAR)

• Bulant, P. and Klimes, L. (1996): Examples of seismic models. Part 2: In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 39-52, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Description of two smooth 2-D continuous INRIA versions of the Marmousi model, detailed description of input data for package MODEL.
• Klimes, L. (1996): Travel times in the INRIA Marmousi models. In: Seismic Waves in Complex 3-D Structures, Report 4, Dep. Geophys., Charles Univ., Prague, pp. 53-60, online at "http://sw3d.cz".
  Ray tracing and calculation of travel times in two continuous INRIA versions of the Marmousi model. Demonstration of ray chaos.
• Klimes, L. (2000): Smoothing the Marmousi model for Gaussian-packet migrations. In: Seismic Waves in Complex 3-D Structures, Report 10, Dep. Geophys., Charles Univ., Prague, pp. 63-74, online at "http://sw3d.cz".
  Preparation of a 2-D velocity model by smoothing the discrete Marmousi model using Sobolev scalar products.
• Zacek, K. (2002): Smoothing the Marmousi model. Pure appl. Geophys., 159, 1507-1526.
  Preparation of a 2-D velocity model by smoothing the discrete Marmousi model using Sobolev scalar products.
• Zacek, K. (2005): Gaussian packet prestack depth migration. In: Seismic Waves in Complex 3-D Structures, Report 15, Dep. Geophys., Charles Univ., Prague, pp. 29-48, online at "http://sw3d.cz".
  Gaussian packet prestack depth migration with uniform Gaussian packets in the smooth 2-D velocity model.
• Zacek, K. (2006): Optimization of the shape of Gaussian beams. Stud. geophys. geod., 50, 349-366.
  Optimization of the shape of Gaussian beams in the smooth 2-D velocity model.
• Zacek, K. (2006): Decomposition of the wave field into optimized Gaussian packets. Stud. geophys. geod., 50, 367-380.
  Decomposition of the wave field into optimized Gaussian packets in the smooth 2-D velocity model.
• Bucha, V. (2008): Gaussian packet prestack depth migration. Part 2: Optimized Gaussian packets. In: Seismic Waves in Complex 3-D Structures, Report 18, Dep. Geophys., Charles Univ., Prague, pp. 129-138, online at "http://sw3d.cz".
  Gaussian packet prestack depth migration with optimized Gaussian packets in the smooth 2-D velocity model.
• Bulant, P. (2012): Interpolation within ray tubes - state of the art. In: Seismic Waves in Complex 3-D Structures, Report 22, Dep. Geophys., Charles Univ., Prague, pp. 169-182, online at "http://sw3d.cz".
  Interpolation of travel times in the model.

Unconformity 2-D model (U2D)

• Klimes, L. (1996): Synthetic seismograms in 2-D model UNCONFORMITY. In: Seismic Waves in Complex 3-D Structures, Report 4, Dep. Geophys., Charles Univ., Prague, pp. 77-89, online at "http://sw3d.cz".
  Ray-theory synthetic seismograms in 2-D model UNCONFORMITY without attenuation and with attenuation.
• Bucha, V. and Klimes, L. (1999): Finite differences above the MODEL package. In: Seismic Waves in Complex 3-D Structures, Report 8, Dep. Geophys., Charles Univ., Prague, pp. 171-192, online at "http://sw3d.cz".
  Comparison of ray-theory and finite-difference synthetic seismograms in 2-D model UNCONFORMITY without attenuation.
• Cerveny, V., Klimes, L. & Psencik, I. (2007): Seismic ray method: Recent developments. Advances in Geophysics, 48, 1-126.
  Ray-theory synthetic seismograms in 2-D model UNCONFORMITY without attenuation and with attenuation (Fig. 40).

1-D model (RM)

• Klimes, L. (1998): Comparison of ray-matrix and finite-difference methods in a simple 1-D model. In: Seismic Waves in Complex 3-D Structures, Report 7, Dep. Geophys., Charles Univ., Prague, pp. 169-180, online at "http://sw3d.cz".
  Comparison of ray-matrix and finite-difference synthetic seismograms in simple 1-D model RM.
• Cerveny, V., Klimes, L. & Psencik, I. (2007): Seismic ray method: Recent developments. Advances in Geophysics, 48, 1-126.
  Comparison of ray-matrix and finite-difference synthetic seismograms in simple 1-D model RM (Fig. 41).

Weakly anisotropic models (QI, QIH, QI2, QI4, QI8, SC1_I, SC1_II, KISS and ORT)

• Psencik, I. (1998): Quasi-shear waves in the zero-order approximation of the quasi-isotropic approach. Preliminary results In: Seismic Waves in Complex 3-D Structures, Report 7, pp. 225-266, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Comparison of quasi-isotropic coupling-ray-theory synthetic seismograms and particle motion diagrams with isotropic and anisotropic ray theory seismograms and particle motions in weakly anisotropic models EWA and WA.
• Bulant, P. & Klimes, L. (1998): Coupling ray theory in weakly anisotropic media. In: Seismic Waves in Complex 3-D Structures, Report 7, pp. 215-223, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Coupling-ray-theory synthetic seismograms in model QI.
• Psencik, I. & Dellinger, J. (2000): Quasi-shear waves in inhomogeneous weakly anisotropic media by the quasi-isotropic approach: a model study In: Seismic Waves in Complex 3-D Structures, Report 10, pp. 203-225, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Description of weakly anisotropic model QI (model WA rotated by 45 degrees). Comparison of quasi-isotropic coupling-ray-theory synthetic seismograms and reflectivity synthetic seismograms in weakly anisotropic model QI.
• P. Bulant & L. Klimes (2001): Coupling ray theory and its quasi-isotropic approximations.
  Expanded Abstracts of 71st Annual Meeting (San Antonio), pp. 141-144, Soc. Explor. Geophysicists, Tulsa.
  Coupling-ray-theory syntetic seismograms in model QI.
• Bulant, P. & Klimes, L. (2001): Numerical algorithm of the coupling ray theory in weakly anisotropic media. In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 263-277, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Comparison of coupling-ray-theory synthetic seismograms calculated along isotropic reference rays and quasi-isotropic coupling-ray-theory synthetic seismograms in weakly anisotropic model QI.
• Psencik, I. & Dellinger, J. (2001): Quasi-shear waves in inhomogeneous weakly anisotropic media by the quasi-isotropic approach: a model study. Geophysics, 66, 308-319.
  Description of weakly anisotropic model QI (model WA rotated by 45 degrees). Comparison of quasi-isotropic coupling-ray-theory synthetic seismograms and reflectivity synthetic seismograms in weakly anisotropic model QI.
• Bulant, P. & Klimes, L. (2002): Numerical algorithm of the coupling ray theory in weakly anisotropic media. Pure appl. Geophys., 159, 1419-1435.
  Comparison of coupling-ray-theory synthetic seismograms calculated along isotropic reference rays and quasi-isotropic coupling-ray-theory synthetic seismograms in weakly anisotropic model QI.
• Klimes, L. & Bulant, P. (2002): Errors due to the common ray approximations of the coupling ray theory. In: Seismic Waves in Complex 3-D Structures, Report 12, Dep. Geophys., Charles Univ., Prague, pp. 185-212, online at "http://sw3d.cz".
  Synthetic seismograms of the coupling ray theory and its quasi-isotropic approximations in models QI, QI2 and QI4.
• Klimes, L. (2003): Common ray tracing and dynamic ray tracing for S waves in a smooth elastic anisotropic medium. In: Seismic Waves in Complex 3-D Structures, Report 13, Dep. Geophys., Charles Univ., Prague, pp. 119-141, online at "http://sw3d.cz".
  Calculation of travel times of anisotropic common rays in models QI, QI2 and QI4.
• Klimes, L. & Bulant, P. (2004): Errors due to the common ray approximations of the coupling ray theory. Stud. geophys. geod., 48, 117-142.
  Coupling-ray-theory synthetic seismograms calculated along isotropic reference rays in weakly anisotropic models QI, QI2, QI4. Comparisons with different quasi-isotropic approximations of the coupling ray theory.
• Cerveny, V., Klimes, L. & Psencik, I. (2007): Seismic ray method: Recent developments. Advances in Geophysics, 48, 1-126.
  Example of development of S-wave splitting with increasing anisotropy in models QIH, QI, QI2, QI4 (Fig. 21). Comparison of quasi-isotropic coupling-ray-theory synthetic seismograms and Chebyshev spectral method synthetic seismograms in weakly anisotropic model QI (Fig. 22).
• Bulant, P. & Klimes, L. (2008): Numerical comparison of the isotropic-common-ray and anisotropic-common-ray approximations of the coupling ray theory. Geophys. J. int., 175, 357-374.
  Coupling-ray-theory synthetic seismograms calculated along common S-wave anisotropic reference rays in weakly anisotropic models QI, QI2, QI4. Comparison with coupling-ray-theory synthetic seismograms calculated along isotropic reference rays.
• Bulant, P., Psencik, I., Farra, V., & Tessmer, E. (2011): Comparison of the anisotropic-common-ray approximation of the coupling ray theory for S waves with the Fourier pseudo-spectral method in weakly anisotropic models. In: Seismic Waves in Complex 3-D Structures, Report 21, Dep. Geophys., Charles Univ., Prague, pp. 167-183, online at "http://sw3d.cz".
  Calculation of coupling-ray-theory synthetic seismograms in models QI, QI4, SC1_I, SC1_II, KISS and ORT, comparison with Fourier pseudospectral method and with seismograms calculated along the first-order rays.
• Klimes, L. & Bulant, P. (2012): Single-frequency approximation of the coupling ray theory. In: Seismic Waves in Complex 3-D Structures, Report 22, Dep. Geophys., Charles Univ., Prague, pp. 143-167, online at "http://sw3d.cz".
  Calculation of single-frequency approximation coupling-ray-theory synthetic seismograms in models QIH, QI, QI2, QI4, SC1_I, SC1_II, KISS and ORT.
• Klimes, L. & Bulant, P. (2013): Interpolation of the coupling-ray-theory S-wave Green tensor within ray cells. In: Seismic Waves in Complex 3-D Structures, Report 23, Dep. Geophys., Charles Univ., Prague, pp. 203-218, online at "http://sw3d.cz".
  Calculation of two prevailing-frequency approximation of the coupling-ray theory Green tensors along common anisotropic S-wave rays, calculation of synthetic seismograms along the rays, interpolation of travel times between the rays in models QIH, QI, QI2, QI4, SC1_I, SC1_II, KISS and ORT.

Sample synthetic 3-D model (98)

• Bulant, P. & Klimes, L. (1998): Interpolation of ray-theory travel times within ray cells. In: Seismic Waves in Complex 3-D Structures, Report 7, pp. 17-32, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Multivalued travel-time maps in model 98.
• Bulant, P. and Klimes, L. (1998): Computations in the model composed during the 1998 consortium meeting. In: Seismic Waves in Complex 3-D Structures, Report 7, Dep. Geophys., Charles Univ., Prague, pp. 33-56, online at "http://sw3d.cz".
  Construction of the velocity model. Calculation of travel times by interpolation within ray cells. Two-point ray tracing. Ray-theory synthetic seismograms.

1-D anisotropic "twisted crystal" model (TC)

• Klimes, L. (1999): Analytical one-way plane-wave solution in the 1-D anisotropic "twisted crystal" model. In: Seismic Waves in Complex 3-D Structures, Report 8, pp. 103-118, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Exact analytical expressions for propagator matrices of plane S waves in the "simplified twisted crystal" model, comparison with analytical solutions for isotropic, anisotropic and coupling-ray theories.
• Bulant, P., Klimes, L. & Psencik, I. (1999): Comparison of ray methods with the exact solution in the 1-D anisotropic "twisted crystal" model. In: Seismic Waves in Complex 3-D Structures, Report 8, pp. 119-126, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Numerical comparison of isotropic, anisotropic, coupling-ray and quasi-isotropic approximation of the coupling ray theories in the "simplified twisted crystal" model.
• Klimes, L. (2004): Analytical one-way plane-wave solution in the 1-D anisotropic "simplified twisted crystal" model. Stud. geophys. geod., 48, 75-96.
  Exact analytical expressions for propagator matrices of plane S waves in the "simplified twisted crystal" model, comparison with analytical solutions for isotropic, anisotropic and coupling-ray theories.
• Bulant, P., Klimes, L., Psencik, I. & Vavrycuk, V. (2004): Comparison of ray methods with the exact solution in the 1-D anisotropic "simplified twisted crystal" model. Stud. geophys. geod., 48, 675-688.
  Numerical comparison of isotropic, anisotropic, coupling-ray and quasi-isotropic approximation of the coupling ray theories in the "simplified twisted crystal" model.
• Bulant, P. & Klimes, L. (2004): Comparison of quasi-isotropic approximations of the coupling ray theory with the exact solution in the 1-D anisotropic "oblique twisted crystal" model. Stud. geophys. geod., 48, 97-116.
  Errors of different quasi-isotropic approximations in the "oblique twisted crystal model".

Simple smooth 3-D model (N2)

• Klimes, L. & Kvasnicka, M. (1994): 3-D network ray tracing. Geophys. J. int., 116, 726-738.
  Calculation of travel times by packages NET and CRT.

2-D representation of the Kummer random medium (RAN)

• Klimes, L. (1997): Correlation functions of random media. In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 25-40, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Example of Laguerr random medium (Fig. 8).
• Klimes, L. (2001): Correlation functions of random media. In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 91-109, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Example of Kummer random medium (Fig. 8).
• Klimes, L. (2002): Correlation functions of random media. Pure appl. Geophys., 159, 1811-1831.
  Example of Kummer random medium (Fig. 8).
• Cerveny, V., Klimes, L. & Psencik, I. (2007): Seismic ray method: Recent developments. Advances in Geophysics, 48, 1-126.
  Example of the Kummer random medium (Fig. 38). First-arrival travel times in the 2-D representation of the Kummer random medium (Fig. 39).

2-D model with a salt body (HES)

• Bulant, P. (2000): Smoothing 2-D model HESS for Kirchhoff migrations. In: Seismic Waves in Complex 3-D Structures, Report 10, pp. 75-82, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Preparation of a 2-D velocity model by smoothing the discrete 2-D model with a salt body using Sobolev scalar products. Calculation of travel times by interpolation within ray cells.
• Bulant, P. (2001): Sobolev scalar products in the construction of velocity models -- application to model Hess, to SEG/EAGE Salt Model, and to model Pluto 1.5. In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 133-159, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Preparation of a 2-D velocity model by smoothing the discrete 2-D model with a salt body using Sobolev scalar products. Calculation of travel times by interpolation within ray cells.
• Bulant, P. (2002): Sobolev scalar products in the construction of velocity models: Application to model Hess and to SEG/EAGE Salt Model. Pure appl. Geophys., 159, 1487-1506.
  Preparation of a 2-D velocity model by smoothing the discrete 2-D model with a salt body using Sobolev scalar products. Calculation of travel times by interpolation within ray cells.

1-D constant velocity gradient model (VGR)

• Klimes, L. & Kvasnicka, M. (1994): 3-D network ray tracing. Geophys. J. int., 116, 726-738.
  Calculation of travel times by packages NET and CRT.
• Klimes, L. (1996): Grid travel-time tracing: accuracy comparison of several methods. In: Seismic Waves in Complex 3-D Structures, Report 4, pp. 143-150, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of first-arrival travel times in the model by different methods, comparison of their accuracy.
• Klimes, L. (1996): Grid travel-time tracing: second-order method for the first arrivals in smooth media. In: Seismic Waves in Complex 3-D Structures, Report 3, pp. 157-174, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of first-arrival travel times in the model by different methods, comparison of their accuracy.
• Klimes, L. (1996): Grid travel-time tracing: second-order method for the first arrivals in smooth media. Pure appl. Geophys., 148, 539-563.
  Calculation of first-arrival travel times in the model by different methods, comparison of their accuracy.
• Klimes, L. (2000): Calculation of geometrical spreading from gridded slowness vectors in 2-D. In: Seismic Waves in Complex 3-D Structures, Report 10, pp. 115-120, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of travel times and slowness vectors in the model by package NET, calculation of geometrical spreading from the gridded slowness vector, comparison with ray-theory geometrical spreading.

SEG/EAGE Salt Model (SAL)

• Bulant, P. (2002): Sobolev scalar products in the construction of velocity models: Application to model Hess and to SEG/EAGE Salt Model. Pure appl. Geophys., 159, 1487-1506.
  Preparation of a 2-D velocity model by smoothing the discrete 3-D SEG/EAGE Salt Model using Sobolev scalar products. Ray tracing.
• Bulant, P. (2004): Constructing the SEG/EAGE 3-D Salt Model for ray tracing using Sobolev scalar products. Stud. geophys. geod., 48, 689-707.
  Preparation of a 2-D velocity model by smoothing the discrete 3-D SEG/EAGE Salt Model using Sobolev scalar products. Ray tracing.
• Bucha, V. (2006): Ray tracing in the smoothed acoustic SEG/EAGE Salt Model. Part 1: Seismograms. J. seism. Explor., 15, 15-24.
  Two-point ray tracing and synthetic seismograms in the 3-D velocity model with interfaces.
• Bucha, V. (2006): Ray tracing in the smoothed acoustic SEG/EAGE Salt Model. Part 2: Maps of reflections. J. seism. Explor., 15, 153-164.
  Two-point ray tracing, points of reflection and corresponding amplitudes in the 3-D velocity model with interfaces.
• Bucha, V. (2006): Comparison of finite-difference seismograms and ray-theory travel times in the elastic SEG/EAGE Salt Model. J. seism. Explor., 15, 225-239.
  Comparison of finite-difference seismograms calculated in the elastic SEG/EAGE Salt Model with travel times calculated in the 3-D velocity model with interfaces.

2-D model Pluto 1.5 (PLU)

• Bulant, P. (2001): Sobolev scalar products in the construction of velocity models - application to model Hess, to SEG/EAGE Salt Model, and to model Pluto 1.5. In: Seismic Waves in Complex 3-D Structures, Report 11, Dep. Geophys., Charles Univ., Prague, pp. 133-159, online at "http://sw3d.cz".
  Preparation of a 2-D velocity model with interfaces by smoothing the discrete 2-D model with salt bodies using Sobolev scalar products. Ray tracing.

Computation of R/T coefficients

• Klimes, L. (2003): Weak-contrast reflection-transmission coefficients in a generally anisotropic background. Geophysics, 68, 2063-2072.
  Computation of reflection coefficients of P-P, P-SV and P-SH waves in the model with a finite-contrast interface between isotropic and anisotropic half-spaces.

Models of the Cotton Valley site (CV)

Model with planar interfaces (EX)

Correlation functions of random media (CORFUN)

• Klimes, L. (1997): Correlation functions of random media. In: Seismic Waves in Complex 3-D Structures, Report 6, pp. 25-40, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Examples of random media.
• Klimes, L. (2001): Correlation functions of random media. In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 91-109, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Examples of random media.
• Klimes, L. (2002): Correlation functions of random media. Pure appl. Geophys., 159, 1811-1831.
  Examples of random media.

2-D model P1I with reflection surfaces (P1I)

• Bulant, P. & Martakis, N. (2011): Constructing model P1I for reflection studies. In: Seismic Waves in Complex 3-D Structures, Report 21, pp.17-25, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Construction of the 2-D model with interfaces, calculation of synthetic seismograms of the reflected P-wave.

Smooth 2-D model P1

• Bulant, P. & Martakis, N. (2011): Constructing model P1I for reflection studies. In: Seismic Waves in Complex 3-D Structures, Report 21, pp.17-25, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Construction of the smooth 2-D model.
• Sachl, L. (2011): 2D computations of 3D synthetic seismograms using the ray-based Born approximation in heterogeneous model P1. In: Seismic Waves in Complex 3-D Structures, Report 21, pp.99-114, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of ray-based Born approximation synthetic seismograms in four differently perturbed realizations of model P1, comparison of the seismograms with ray-theory seismograms.
• Bulant, P. (2012): Interpolation within ray tubes - state of the art. In: Seismic Waves in Complex 3-D Structures, Report 22, Dep. Geophys., Charles Univ., Prague, pp. 169-182, online at "http://sw3d.cz".
  Interpolation of travel times in the model.

Simple models to test the Born approximation

• Sachl, L. (2011): 3D and 2D computations of 3D synthetic seismograms using the ray-based Born approximation in simple models. In: Seismic Waves in Complex 3-D Structures, Report 21, pp.69-98, Dep. Geophys., Charles Univ., Prague, online at "http://sw3d.cz".
  Calculation of ray-based Born approximation synthetic seismograms in models with horizontal, dipping and curved interface, comparison of the seismograms with ray-theory seismograms.