Weak-anisotropy approximation of P-wave reflection coefficient in anisotropic media of arbitrary symmetry and tilt
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F22%3A00556049" target="_blank" >RIV/67985530:_____/22:00556049 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10452469
Result on the web
<a href="https://library.seg.org/doi/10.1190/geo2021-0471.1" target="_blank" >https://library.seg.org/doi/10.1190/geo2021-0471.1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1190/geo2021-0471.1" target="_blank" >10.1190/geo2021-0471.1</a>
Alternative languages
Result language
angličtina
Original language name
Weak-anisotropy approximation of P-wave reflection coefficient in anisotropic media of arbitrary symmetry and tilt
Original language description
Applicability of the approximate expression for the P-wave reflection coefficient at a weak-contrast reflector separating two weakly anisotropic half-spaces of arbitrary symmetry is extended to media of arbitrary symmetry and tilt. The reflection coefficient consists of the approximate PP reflection coefficient at a weak-contrast interface separating two reference isotropic half-spaces and a correction term due to anisotropy. Along an arbitrarily chosen profile, the 'isotropic term depends on the density and P- and S-wave contrasts, the correction term depends linearly on the contrasts of four profile weak-anisotropy (WA) parameters specifying anisotropy along the profile. In addition, both terms depend on the polar angle of incidence. In each half-space, the four profile WA parameters can be expressed as a linear combination of twelve of twenty one global WA parameters specifying anisotropy of the half-space. Coefficients of this linear combination are functions of the azimuth of the profile. WA parameters are a generalization of Thomsen parameters to arbitrary anisotropy, and represent an alternative to twenty one independent elements of the stiffness tensor. WA parameters can be used for the approximation of other related concepts as the reflection moveout or the geometrical spreading. Presented tests illustrate high accuracy and flexibility of the proposed formula for the P-wave reflection coefficient. They also show that very accurate results can be obtained for contrasts and anisotropy, which cannot be considered weak.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10507 - Volcanology
Result continuities
Project
<a href="/en/project/GA20-06887S" target="_blank" >GA20-06887S: Seismic waves in heterogeneous anisotropic viscoelastic media</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysics
ISSN
0016-8033
e-ISSN
1942-2156
Volume of the periodical
87
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
"C39"-"C48"
UT code for WoS article
000793467000004
EID of the result in the Scopus database
2-s2.0-85125855544