Can finite-frequency effects be accounted for in ray theory surface wave tomography?

Details Can finite-frequency effects be accounted for in ray theory surface wave tomography? Can finite-frequency effects be accounted for in ray theory surface wave tomography?

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3124614s&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 24, CiteID L24614

Physics

19

Seismology: Surface Waves And Free Oscillations, Seismology: Theory And Modeling, Tectonophysics: Tomography

Scientific paper

We present a series of synthetic tests showing that regional surface wave tomographies with a dense path coverage of the target region can be safely conducted under ray theory because the shortcomings of ray theory in considering finite-frequency effects can be counterbalanced by a physically-based regularization of the inversion. In particular, we show that with ray theory applied under the above conditions, it is possible to detect heterogeneities with length scales smaller than the wavelength of the data set.

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