The Marine Seismology and Geoacousitcs Group - MOVIES


      The following is a set of movies from the Marine Seismology and Geoacoustics Group at WHOI using data output from a FORTRAN program using the TIME-DOMAIN-FINITE-DIFFERENCE method for calculating Synthetic Seismograms. The finite-difference program outputs data as seismograms (time-series) and as snapshots of the waveforms in a depth and range grid. Please see Ralph Stephen's selected publications for further references on this technique.

      This section contains a series of movies from the FINITE-DIFFERENCE program. The data from the FINITE-DIFFERENCE program snapshots for SHEAR and COMPRESSIONAL waves is used to create these movies. A C program was written by Tom Bolmer, modeled after an earlier program written by Willaim S. Little. This program outputs a PPM formatted file for each time frame snapshot. The series of PPM time frames are then used by the public domain progam MPEG_ENCODE to create an MPEG-1 formatted file.


MOVIES of a SELECTED SET of MODELS:


BASIC MODELS:


FLAT SEAFLOOR with HETEROGENEOUS BOTTOM MODELS,

( as shown at ASA May 1996):


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This page was updated by Tom Bolmer on 5/31/00.

send comments and questions to: Tom Bolmer, WHOI
tbolmer@whoi.edu