Eurasian Seismic Surveillance - 2D FD Seismic Synthetics and Event Discrimination
Abstract
Most efforts have been devotes to 2D FD synthetics for simulating seismic wave propagation in a complex lithosphere. The FD scheme used is tied to the numerical solution of the elastodynamic wave equation. We have demonstrated the usefulness of this approach by computing synthetic seismograms for a set of progressively complex lithosphere models. In practice, model set-up for FD computations have proved cumbersome so we have elaborated on automating structural model generation. The computed synthetics are SEG-Y formatted and thus are easily processed using standard software packages like the ProMAX. As part of the 2D FD studies, we have critically examined optimal design of boundary conditions in order to reduce edge reflection artifacts. Our synthetic wavefield scheme recently extended to 3D modelling can also handle surface topography. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 23, 1995
- Accession Number
- ADA292659
Entities
People
- Bent O. Ruud
- Eystein S. Husebye
Organizations
- University of Oslo