Interpolation of the coupling-ray-theory Green function within ray cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10366946" target="_blank" >RIV/00216208:11320/17:10366946 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Interpolation of the coupling-ray-theory Green function within ray cells
Original language description
The coupling-ray-theory tensor Green function for elastic S waves is frequency dependent, and is usually calculated for many frequencies. This frequency dependence represents no problem for calculating the Green function, but may be impractical or even unrealistic in storing the Green function at the nodes of dense grids, typical for applications such as Born approximation or non-linear source determination. We have already proposed the approximation of the coupling-ray-theory tensor Green function, in the vicinity of a given prevailing frequency, by two coupling-ray-theory dyadic Green functions described by their coupling-ray-theory travel times and their coupling-ray-theory amplitudes. The above mentioned prevailing-frequency approximation of the coupling ray theory enables us to interpolate the coupling-ray-theory dyadic Green functions within ray cells, and to calculate them at the nodes of dense grids. For the interpolation within ray cells, we need to separate the pairs of the prevailing-frequency coupling-ray-theory dyadic Green functions so that both the first Green function and the second Green function are continuous along rays and within ray cells. In this contribution, we describe the current progress in this field and outline the basic algorithms. We also demonstrate the preliminary numerical results in several velocity models.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Expanded Abstracts of 15th Int. Congress of the Brazilian Geophysical Society
ISBN
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ISSN
2175-4551
e-ISSN
neuvedeno
Number of pages
6
Pages from-to
1-6
Publisher name
Brazilian Geophysical Society
Place of publication
Rio de Janeiro
Event location
Rio de Janeiro
Event date
Jul 31, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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