Approximating constant-Q seismic propagation in the time domain

Tieyuan Zhu, José M. Carcione, Jerry M. Harris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

In this study, we investigate the accuracy of approximating constant-Q by a series of Zener or standard linear solids (SLS) mechanisms. Modeling of approximately constant-Q in a viscoacoustic medium is implemented in time domain using finite-difference (FD) approach. The accuracy of numerical solutions is evaluated by comparison with the analytical solution of the constant-Q model. We found the FD solutions using three SLS (relaxation mechanisms) as well as a single SLS mechanism are quite accurate for weak and strong attenuation. Although the RMS errors of FD simulations using the single relaxation mechanism become larger with increasing offset, especially for strong attenuation (Q=20), the results are still acceptable. The simulated synthetic data of the complex model further illustrate that the single SLS mechanism to model constant-Q is efficient and sufficiently accurate. Moreover, it benefits from less computational costs in time and memory. Therefore, we suggest that the single relaxation is a promising choice to model constant-Q for computational intensive seismic modeling and inversion.

Original languageEnglish (US)
Title of host publicationSociety of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012
PublisherSociety of Exploration Geophysicists
Pages3060-3064
Number of pages5
ISBN (Print)9781622769452
DOIs
Publication statusPublished - Jan 1 2012
EventSociety of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012 - Las Vegas, United States
Duration: Nov 4 2012Nov 9 2012

Publication series

NameSociety of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012

Other

OtherSociety of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012
CountryUnited States
CityLas Vegas
Period11/4/1211/9/12

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All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Zhu, T., Carcione, J. M., & Harris, J. M. (2012). Approximating constant-Q seismic propagation in the time domain. In Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012 (pp. 3060-3064). (Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012). Society of Exploration Geophysicists. https://doi.org/10.1190/segam2012-1415.1