Statistics – Computation
Scientific paper
Mar 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3706302p&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 6, CiteID L06302
Statistics
Computation
2
Computational Geophysics: Numerical Solutions (4255), Computational Geophysics: Modeling (1952, 4255), Physical Properties Of Rocks: Wave Attenuation, Computational Geophysics: Model Verification And Validation
Scientific paper
Finely layered media behaves as an anisotropic medium at long wavelengths. If the constituent media are anelastic, Q-anisotropy of qP, qSV and SH waves can be described by a generalization of Backus averaging to the lossy case. To test the theory, we introduce a novel method to obtain the complex and frequency-dependent stiffnesses from numerical simulations of oscillatory (harmonic) tests based on a space-frequency domain finite element method. We apply the methodology to a periodic sequence of shale and limestone and compute the quality factor and wave velocities as a function of frequency and propagation direction.
Carcione José M.
Gei Davide
Picotti Stefano
Santos Juan E.
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