Comparison of the anisotropic-ray-theory rays and anisotropic common S-wave rays with the SH and SV reference rays in a velocity model with a split intersection singularity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10385078" target="_blank" >RIV/00216208:11320/18:10385078 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s11200-015-0381-4" target="_blank" >https://doi.org/10.1007/s11200-015-0381-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11200-015-0381-4" target="_blank" >10.1007/s11200-015-0381-4</a>

Result language

angličtina

Original language name

Comparison of the anisotropic-ray-theory rays and anisotropic common S-wave rays with the SH and SV reference rays in a velocity model with a split intersection singularity

Original language description

We describe the behaviour of the anisotropic-ray-theory S-wave rays in a velocity model with a split intersection singularity. The anisotropic-ray-theory S-wave rays crossing the split intersection singularity are smoothly but very sharply bent. While the initial-value rays can be safely traced by solving Hamilton&apos;s equations of rays, it is often impossible to determine the coefficients of the equations of geodesic deviation (paraxial ray equations, dynamic ray tracing equations) and to solve them numerically. As a result, we often know neither the matrix of geometrical spreading, nor the phase shift due to caustics. We demonstrate the abrupt changes of the geometrical spreading and wavefront curvature of the fast anisotropic-ray-theory S wave. We also demonstrate the formation of caustics and wavefront triplication of the slow anisotropic-ray-theory S wave. Since the actual S waves propagate approximately along the SH and SV reference rays in this velocity model, we compare the anisotropic-ray-theory S-wave rays with the SH and SV reference rays. Since the coupling ray theory is usually calculated along the anisotropic common S-wave rays, we also compare the anisotropic common S-wave rays with the SH and SV reference rays.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10500 - Earth and related environmental sciences

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Studia Geophysica et Geodaetica

ISSN

0039-3169

e-ISSN

—

Volume of the periodical

62

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

23

Pages from-to

57-79

UT code for WoS article

000424035200004

EID of the result in the Scopus database

2-s2.0-85041748929