Scattering of surface waves modelled by the integral equation method

Details Scattering of surface waves modelled by the integral equation method Scattering of surface waves modelled by the integral equation method

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008geoji.174..857l&link_type=abstract

Geophysical Journal International, Volume 174, Issue 2, pp. 857-872.

Statistics

Computation

1

Surface Waves And Free Oscillations, Computational Seismology, Wave Scattering And Diffraction, Wave Propagation

Scientific paper

The integral equation method is used to model the propagation of surface waves in 3-D structures. The wavefield is represented by the Fredholm integral equation, and the scattered surface waves are calculated by solving the integral equation numerically. The integration of the Green's function elements is given analytically by treating the singularity of the Hankel function at R = 0, based on the proper expression of the Green's function and the addition theorem of the Hankel function. No far-field and Born approximation is made. We investigate the scattering of surface waves propagating in layered reference models imbedding a heterogeneity with different density, as well as Lamé constant contrasts, both in frequency and time domains, for incident plane waves and point sources.

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