A computer program to trace seismic ray distribution in complex two-dimensional geological models
Final Report
By: Nazieh K. Yacoub and James H. Scott
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Abstract
A computer program has been developed to trace seismic rays and their amplitudes and energies through complex two-dimensional geological models, for which boundaries between elastic units are defined by a series of digitized X-, Y-coordinate values. Input data for the program includes problem identification, control parameters, model coordinates and elastic parameter for the elastic units. The program evaluates the partitioning of ray amplitude and energy at elastic boundaries, computes the total travel time, total travel distance and other parameters for rays arising at the earth's surface. Instructions are given for punching program control cards and data cards, and for arranging input card decks. An example of printer output for a simple problem is presented. The program is written in FORTRAN IV language. The listing of the program is shown in the Appendix, with an example output from a CDC-6600 computer.
Suggested Citation
Yacoub, N.K., Scott, J.H., 1970, A computer program to trace seismic ray distribution in complex two-dimensional geological models: Final Report, 76 p.; 2 Sheets; 10x15 cm; Bibliography: leaf 11, https://doi.org/10.3133/70042621.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Unnumbered Series |
| Title | A computer program to trace seismic ray distribution in complex two-dimensional geological models |
| Series title | Final Report |
| DOI | 10.3133/70042621 |
| Year Published | 1970 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Earthquake Hazards Program, Geologic Hazards Science Center |
| Description | 76 p.; 2 Sheets; 10x15 cm; Bibliography: leaf 11 |