Images relating to SEISMIC WAVES and WAVE PROPAGATION
|
Images about Seismic Waves and Wave Propagation (return to image directory page)
|
||||
 |
 |
 |
 |
 |
| AI (956 Kb) JPG (312 Kb) | AI (4.4 Mb) JPG (201 Kb) | AI (5.0 Mb) JPG (696 Kb) | AI (649 Kb) JPG (501 Kb) | AI (239 Kb) JPG (276 Kb) |
|
Eight time steps are shown in Mike Thorne's SHAXI finite difference code. Go to Mike's animation page for some really nice movies of this. This calculation is for the SH wavefield, in an axi-symmetric calculation (hence, the name "SHAXI"). Download the code from HERE!
|
Again, from Mike Thorne. Here we see the SH-field with the multiple S energy (e.g., SS, SSS) displaying prominantly.
|
Using a 1-D reflectivity method code, Nick Schmerr made these SS (and precursor) synthetic seismograms. You can see the interference caused by all the depth phases!
|
Ok, these are not "waves", but instead raypaths. But I stuck them here as a reminder that the wave field in data has more information in there than just our garden variety P and S waves!
|
This is a cartoon, but I found it useful for a general audience.
|
|
Images about Seismic Waves and Wave Propagation (return to image directory page)
|
||||
 |
 |
|||
| AI (956 Kb) JPG (312 Kb) | AI (4.4 Mb) JPG (201 Kb) | |||
|
Another cartoon, in case one needs to emphasize an expanding wavefront.
|
This is a simple schematic I show in general audience talks to illustrate two things: travel time perturbations due to some internal anomaly, and extra (unanticipated) energy due to some internal reflector of energy. Here is a PowerPoint file that has those slides plus some others that relate to similar basics.
|
|
|
|