Computation of synthetic seismograms for marine refraction studies
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Computation of synthetic seismograms for marine refraction studies

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Published by Geological Survey of Canada, available from Print. and Pub., Supply and Services Canada in Ottawa, Hull, Quebec .
Written in English

Subjects:

  • Seismograms.,
  • Marine geophysics -- Charts, diagrams, etc.,
  • Seismic refraction method.

Book details:

Edition Notes

StatementC. E. Keen.
SeriesPaper - Geological Survey of Canada ; 78-16, Paper (Geological Survey of Canada) ;, 78-16.
Classifications
LC ClassificationsQE185 .A42 no. 78-16, QE539 .A42 no. 78-16
The Physical Object
Pagination28 p. :
Number of Pages28
ID Numbers
Open LibraryOL4485259M
ISBN 100660101203
LC Control Number79314152

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The reflectivity method for the computation of synthetic seismograms, as devised by Fuchs, is extended to include the elastic transmission losses and time shifts due to . M. Sc. Thesis A Generalized Ray Theory Synthetic Seismogram Program for Marine Crustal Seismic Refraction Studies. (PDF - Mb) A method of computing generalized ray theory (GRT) synthetic seismograms suitable for marine seismic refraction OBS studies . Albert J Rudman, Subhashis Mallick, Frazer, Peter Bromirski, Workstation computation of synthetic seismograms for vertical and horizontal profiles: A full wavefield response for a two-dimensional layered half-space, Computers & Geosciences, /(93)M, 19, 3, (), (). A synthetic seismogram is the result of forward modelling the seismic response of an input earth model, which is defined in terms of 1D, 2D or 3D variations in physical properties. In hydrocarbon exploration this is used to provide a 'tie' between changes in rock properties in a borehole and seismic reflection data at the same location. It can also be used either to test possible.

Summary. Po/So synthetic seismograms were computed for a variety of oceanic structures in order to model data from an mb= earthquake, recorded during the O. Comparison of ocean bottom seismometer data and synthetic seismograms for the Bay of Islands ophiolite, Journal of Geophysical Research: Solid Earth, /JBiB10p, 87, B10, (), (). Request PDF | Least-square fitting of marine seismic refraction data | An iterative procedure is presented for fitting waveform data from a marine seismic refraction . Summary. The computation of theoretical seismograms for models in which the elastic parameters and density vary only with depth (in a plane, cylindrical or spherical geometry) reduces to the solution of an ordinary differential equation plus the evaluation of inverse transformations.

The theoretical basis for the Radon transform pair for one Cartesian coordinate has appeared in the seismological literature. For a point source in plane or spherical geometry, or a line source in cylindrical geometry only the Radon transform for the direct problem (computation of synthetic seismograms) has been published. John B. Sinton and L. Neil Frazer, A method for the computation of finite frequency body wave synthetic seismograms in laterally varying media, Geophysical Journal of the Royal Astronomical Society, 71, 1, (), (). The interpretation of refraction profiles that traverse laterally varying velocity structures has been hindered by lack of a practical algorithm for computing synthetic seismograms . The technique we present here is equivalent to computing three synthetic seismograms in multilayered models, contrasted with N+ 1 seismograms for a typical brute-force approach, which reduces the work to 3/(N+ 1) or about a 90 per cent saving for 30 layers. The lateral-homogeneity requirement will yield path-averaged structures which may form.