Number of the records: 1

Weak anisotropy-attenuation parameters

SYSNO ASEP	0330515
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Weak anisotropy-attenuation parameters
Author(s)	Vavryčuk, Václav (GFU-E)_{ORCID, RID}
Source Title	Geophysics. - : Society of Exploration Geophysicists - ISSN 0016-8033 Roč. 74, č. 5 (2009), WB203-WB213
Number of pages	11 s.
Language	eng - English
Country	US - United States
Keywords	weak anisotropy parameters ; weak anisotropy-attenuation parameters ; seismic waves
Subject RIV	DC - Siesmology, Volcanology, Earth Structure
R&D Projects	IAA300120801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z30120515 - GFU-E (2005-2011)
UT WOS	000270381400040
DOI	10.1190/1.3173154
Annotation	Velocity anisotropy and attenuation in weakly anisotropic and weakly attenuating structures can be treated uniformly using weak anisotropy-attenuation (WAA) parameters. The WAA parameters are constructed in away analogous to weak anisotropy (WA) parameters designed for weak elastic anisotropy. The WAA parameters generalize WA parameters by incorporating attenuation effects. They can be represented alternatively by one set of complex values or by two sets of real values. Assuming high-frequency waves and using the firstorder perturbation theory, all basic wave quantities such as the slowness vector, the polarization vector, propagation velocity, attenuation, and the quality factor are linear functions ofWAAparameters. Numerical modeling shows that perturbation equations have different accuracy for different wave quantities. The propagation velocity usually is calculated with high accuracy.
Workplace	Geophysical Institute
Contact	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Year of Publishing	2010

Number of the records: 1