3D seismic finite-difference modelling, Full Waveform Inversion (FWI) and Reverse Time Migration (RTM) code for wave propagation in isotropic (visco)-acoustic/elastic and anisotropic orthorhombic/triclinic elastic media, which I developed together with Olaf Hellwig and Denise De Nil.

The forward modelling code is based on fd3d by Olaf Hellwig.

Manual available at:

https://danielkoehnsite.wordpress.com/software/

SAVA is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3.0 of the License only.

SAVA is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License in LICENSE.md for more details.

If you show modelling/inversion/migration results in a paper or presentation please give a reference to the following papers:

Zehner, B., Hellwig, O., Linke, M., Görz, I., Buske, S. (2016) "Rasterizing geological models for parallel finite difference simulation using seismic simulation as an example." Computers & Geosciences 86, 83-91.

Köhn, D., Hellwig, O., De Nil, D., Rabbel, W. (2015) "Waveform inversion in triclinic anisotropic media — A resolution study." Geophysical Journal International, 201(3), 1642-1656.

Daniel Koehn