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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10500 - Earth and related environmental sciences

Projekt

<a href="/cs/project/GA19-10809S" target="_blank" >GA19-10809S: Termomechanické procesy v ledových měsících z pohledu numerického modelování</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Geophysical Prospecting

ISSN

0016-8025

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

20

Strana od-do

269-288

Kód UT WoS článku

000591651400001

EID výsledku v databázi Scopus

2-s2.0-85096797644