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3D EAGE/SEG Salt model

3D SEG/EAGE Salt model. 3D acoustic offshore model with salt body.

n1=210 n2=676 n3=676 h=20m

vmin=1500 - vmax=4482

Download Vp


Velocity grid used for benchmarking the wavelength-adaptive 27-point stencil.

References: H. Aghamiry, A. Gholami, L. Combe and S. Operto, Accurate 3D frequency-domain seismic wave modeling with the wavelength-adaptive 27-point finite-difference stencil: a tool for full waveform inversion, Geophysics, to appear.

The size of the velocity grid is 115 x 338 x 338 for a grid interval of 40 m (52.5 Mb). Compared to the original model one sample out of two has been kept.

The FDFD solution is verified against the solution computed with the Convergent Series Method (CBS).

Reference: @article{Osnabrugge_2016_CBS,
title={A convergent Born series for solving the inhomogeneous Helmholtz equation in arbitrarily large media},
author={Osnabrugge, Gerwin and Leedumrongwatthanakun, Saroch and Vellekoop, Ivo M},
journal={Journal of computational physics},

The velocity grid and the CBS wavefield (real and imaginary parts of the monochromatic wavefield) in raw binary format can be downloaded below to test the 27-point stencil in the FDFDMATRIX package available on the OpenCodes menu.

Download the velocity grid here (.BIN)

Download the CBS wavefield here (real and imaginary parts) Real part (.bin) Imaginary part (.bin)


title = {{3-D} {Salt} and {Overthrust} models},
publisher = {{SEG/EAGE} 3-{D} {M}odeling {S}eries {N}o.1},
year = {1997},
author = {F. Aminzadeh and J. Brac and T. Kunz},
serie = {{SEG/EAGE {3-D} Modeling Series No.1}},