| Issue |
E3S Web Conf.
Volume 12, 2016
i-DUST 2016 – Inter-Disciplinary Underground Science & Technology
|
|
|---|---|---|
| Article Number | 06001 | |
| Number of page(s) | 7 | |
| Section | Open Fields | |
| DOI | https://doi.org/10.1051/e3sconf/20161206001 | |
| Published online | 05 December 2016 | |
Seismic wavefield polarization – Part I: Describing an elliptical polarized motion, a review of motivations and methods
1 CEA, DAM, DIF, 91297 Arpajon, France
2 Univ. Nice Sophia Antipolis, CNRS, IRD, Observatoire de la côte d'Azur, Géoazur UMR 7329, Valbonne, France
3 LSBB UMS 3538, Rustrel, France
a Corresponding author: claire.labonne@cea.fr
The seismic wavefield can be approximated by a sum of elliptical polarized motions in 3D space, including the extreme linear and circular motions. Each elliptical motion need to be described: the characterization of the ellipse flattening, the orientation of the ellipse, circle or line in the 3D space, and the direction of rotation in case of non-purely linear motion. Numerous fields of study share the need of describing an elliptical motion. A review of advantages and drawbacks of each convention from electromagnetism, astrophysics and focal mechanism is done in order to thereafter define a set of parameters to fully characterize the seismic wavefield polarization.
© The Authors, published by EDP Sciences 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).