Gaussian beam synthetic seismograms
Item
Title (Dublin Core)
en-US
Gaussian beam synthetic seismograms
Description (Dublin Core)
en-US
Numerical modelling of high-frequency seismic wave fields in complex, 2-D and 3-D, laterally varying, layered structures by the summation of elastodynamic Gaussian beams is discussed. The main attention is devoted to the expansion of the wave field into Gaussian beams, to the choice of initial parameters of Gaussian beams in these expansions and to the construction of synthetic seismograms. The Gaussian beam synthetic seismograms are regular even in regions where the ray method fails, such as the caustic region, critical region, etc. Due to the smoothing effects involved in the Gaussian beam procedure, the method is not too sensitive to the approximation of the medium and to minor details of the model. Moreover, the method does not require two-point (source-to-receiver) ray tracing. The eyaluation of Gaussian beam synthetic seismograms requires approximately the same amount of computer time as the evaluation of ray synthetic seismograms. The memory requirements are also approximately the same. Numerical examples of Gaussian beam synthetic seismograms for 2-D and 3-D structures are presented. Various possible applications of Gaussian beams to seismological problem of practical importance are outlined.
ARK: https://n2t.net/ark:/88439/y058811
Permalink: https://geophysicsjournal.com/article/144
ARK: https://n2t.net/ark:/88439/y058811
Permalink: https://geophysicsjournal.com/article/144
Creator (Dublin Core)
Červeny, V.
Subject (Dublin Core)
en-US
Seismic waves
en-US
Synthetic seismograms
en-US
Gaussian beams
en-US
Methods
Publisher (Dublin Core)
en-US
Journal of Geophysics
Date (Dublin Core)
1985-12-19
Type (Dublin Core)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
en-US
Peer-reviewed Article
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/144
Source (Dublin Core)
en-US
Journal of Geophysics; Vol 58 No 1 (1985): Journal of Geophysics; 44-72
2643-2986
2643-9271
Language (Dublin Core)
eng
Relation (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/144/103