A first order scattering solution for modeling lunar and terrestrial seismic codas

Details A first order scattering solution for modeling lunar and terrestrial seismic codas A first order scattering solution for modeling lunar and terrestrial seismic codas

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phdt........96m&link_type=abstract

Ph.D. Thesis Princeton Univ., NJ.

Computer Science

6

Lunar Seismographs, Stellar Models, Surface Waves, Wave Scattering, Energy Dissipation, Lunar Surface, Scattering Cross Sections, Seismic Waves

Scientific paper

Utilizing a first order renormalized scattering theory, seismogram coda envelopes for surface waves propagating in layered elastic media containing volume inhomogeneities are presented. In agreement with lunar and terrestrial coda observations, the computed results show (1) a long signal duration insensitive to source-receiver details; (2) a model dependent frequency of dominant scattering; and (3) an apparent coda group velocity increase with increasing frequency. The lunar seismograms are suggested as examples of cross-section and source effect dominant codas, while terrestrial codas appear to be examples of dissipation and cross-section dominated cases.

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