On numerically solving the complex eikonal equation using real ray-tracing methods: A comparison with the exact analytical solution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F12%3A00377798" target="_blank" >RIV/67985530:_____/12:00377798 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1190/GEO2011-0431.1" target="_blank" >http://dx.doi.org/10.1190/GEO2011-0431.1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1190/GEO2011-0431.1" target="_blank" >10.1190/GEO2011-0431.1</a>
Alternative languages
Result language
angličtina
Original language name
On numerically solving the complex eikonal equation using real ray-tracing methods: A comparison with the exact analytical solution
Original language description
The exact analytical solution of the complex eikonal equation describing P- and S-waves radiated by a point source situated in a simple type of isotropic viscoelastic medium was ascertained. The velocity-attenuation model is smoothly inhomogeneous with aconstant gradient of the square of the complex slowness. The resultant traveltime is complex; its real part describes the wave propagation and its imaginary part describes the attenuation effects. The solution was further used as a reference solution for numerical tests of the accuracy and robustness of two approximate ray-tracing approaches solving the complex eikonal equation: real elastic ray tracing and real viscoelastic ray tracing. Numerical modeling revealed that the real viscoelastic ray tracing method is unequivocally preferable to elastic ray tracing. It is more accurate and works even in situations when the elastic ray tracing fails. Also, the ray fields calculated by the real viscoelastic ray tracing are excellently reprodu
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DC - Seismology, volcanology and Earth structure
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA300120801" target="_blank" >IAA300120801: Seismic waves and sources in anisotropic media II</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
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
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Volume of the periodical
77
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
"T109"-"T116"
UT code for WoS article
000307799800041
EID of the result in the Scopus database
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