Kirchhoff pre-stack depth scalar migration in a simple triclinic velocity model for three-component P, S1, S2 and converted waves

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10435879" target="_blank" >RIV/00216208:11320/21:10435879 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MCb_5w.f._" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MCb_5w.f._</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/1365-2478.13051" target="_blank" >10.1111/1365-2478.13051</a>

Result language
angličtina
Original language name
Kirchhoff pre-stack depth scalar migration in a simple triclinic velocity model for three-component P, S1, S2 and converted waves
Original language description
Migration of multi-component elastic data in anisotropic models is difficult and has not been reasonably addressed. Thus we test three-dimensional ray-based Kirchhoff pre-stack depth scalar migration and calculate migrated sections in a simple anisotropic velocity model. We generate ray-theory seismograms for separate phases of reflected P, S1, S2 and converted waves. The velocity model is composed of two homogeneous layers and one curved interface. The anisotropy of the upper layer is triclinic and the bottom layer is isotropic. We apply a scalar imaging separately to each component of the elementary wave in a single-layer velocity model with the same triclinic anisotropy as in the upper layer of the velocity model used to calculate the recorded wave field. Results of Kirchhoff pre-stack depth scalar migration indicate big differences for individual elementary wave components. We observe very good migrated interface for all three components of reflected PP wave, radial component of PS1 converted wave and transversal component of PS2 converted wave. For other components and elementary waves, the migrated interface is imaged, only partially, correctly.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10500 - Earth and related environmental sciences

Project
<a href="/en/project/GA19-10809S" target="_blank" >GA19-10809S: Thermomechanical processes in icy moons - insight from numerical modeling</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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