Synthetic Seismogram Modeling.
Abstract
Modeling of seismic refraction and reflection data utilizing travel-time, amplitude and synthetic seismogram methods is being investigated. State of the art techniques for both one- and two-dimensional seismic velocity models are being developed and applied to model studies. It is observed that amplitude effects are prominent and diagnostic features of the fine structure of one-dimensional models and of the lateral velocity structure in two-dimensional models. Techniques for the efficient calculation of synthetic seismograms for an arbitrary two-dimensional elastic velocity model for a point compressional source or a dislocation earthquake source have been developed utilizing a finite-difference approximation to the heterogeneous elastic wave equation in two dimensions. Numerical difficulties associated with these methods have largely been overcome. However, the principal problem which remain in order to routinely apply this method in modeling is that of computer time and storage constraints. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 20, 1980
- Accession Number
- ADA090690
Entities
People
- Lawrence W. Braile
Organizations
- Purdue University