Understanding seismic radiation patterns (tutorial)
The Matlab routine anaseis.m shows the 3D radiation pattern and the corresponding seismograms for various source types.
| Authors: | Gunnar Jahnke |
|---|---|
| General: | Wave propagation |
| Code level: | Training |
| Language: | Matlab |
| Associated groups: | Local Scale |
| Supercomputing: | Serial |
| Grid dimensions: | 1D |
| Coordinate system: | Cartesian, Spherical |
| Method: | Asymptotic |
| Tested operating system: | Linux, Windows |
| Rheology: | Elastic isotropic |
| Solution type: | Analytical (symbolic) |
| Total hits: | 7992 |
Latest Releases
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Understanding seismic radiation patterns (tutorial) 08. Nov. 2004 beta
(2006/11/13 13:23:55.456 GMT+1)
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Project Description
Radiation patterns of seismic sources are complex 3D structures. It is difficult to derive their properties solely from textbook formulas and 2D diagrams.
The Matlab routine anaseis.m shows the 3D radiation pattern and the corresponding seismograms for various source types.
By interactively rotating the radiation pattern in the 3D window (top right window) features such as nodal plane orientations and directions of maximum amplitudes can be understood.
The radiation patterns with plotted receiver locations in the 3D window together with the seismogram window (bottom right window) link the intuitive radiation patterns with the rather abstract seismogram representations of wave fields.