FINDIF : a software package to create synthetic seismograms by finite differences
1983
Hunt, Mary M. | Gove, Lee | Stephen, Ralph A.
Funding was provided by the Office of Naval Researchunder Contract N00014-79-C-0071; NR 083-004.
显示更多 [+] 显示较少 [-]In order to study seismic wave propagation through laterally varyingsea floor structures, a software package has been created to generate synthetic seismograms by finite differences. The elastic wave equation can besolved in two dimensions either for point sources in cylindrical coordinates or for line sources in rectangular coordinates. Vertical and radial variationsof the elastic parameters are allowed.The package includes four programs. Input to the system consists of ashort file containing parameter values to describe the model. The first programis used to initialize the system for the particular model being used.The source arrays and velocity matrices are each computed by a separate program.The final program, which actually carries out the finite differencecalculations, includes six subroutines to implement different options based onalternative finite difference formulations. Two different kinds of outputfiles are created by this program: one or more snap-shot files, and one timeseries file, which will usually include more than one series.
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