SES3D: Spectral-element wave propagation

SES3D is a program package for the simulation of elastic wave propagation and waveform inversion in a spherical section. The package is based on a spectral-element discretisation of the seismic wave equation combined with adjoint techniques.

SES3D supports 3D heterogeneous visco-elastic rheologies with radial anisotropy. Anisotropic perfectly matched layers are implemented to avoid reflections from the unphysical boundaries of the spherical section.

SES3D operates in the natural spherical coordinates, which is untypical for spectral-element approaches. The advantages are a compact program code, fast computations for spherical sections that are sufficiently far from the poles and the core, and the easy implementation of 3D models.

SES3D is fully parallelized, meaning that the computational domain is partitioned into subdomains, each of which is assigned to one compute core. Communication between subdomains is based on MPI.

SES3D has been developed for continental-scale full seismic waveform inversion. It is, however, applicable to a wide range of local- to continental-scale wave propagation problems.

Download

SES3D is a free open source software released under Apache 2.0 License. The following software releases are available for download:

SES3D R07-B: Downloadses3d_r07_b.zip (ZIP, 8.6 MB)

Citation

If you use SES3D, please make proper reference to the following publication:

Gokhberg, A., Fichtner, A., 2016. Full-waveform inversion on hetrogeneous HPC systems. Comp. & Geosci. 89, 260-268.