Attenuative dispersion and frequency shifts of the earth's free oscillations

Details Attenuative dispersion and frequency shifts of the earth's free oscillations Attenuative dispersion and frequency shifts of the earth's free oscillations

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pepi...12....1r&link_type=abstract

Physics of the Earth and Planetary Interiors, vol. 12, no. 1, July 1976, p. P1-P4.

Physics

45

Earth Motion, Free Vibration, Frequency Shift, Vibration Damping, Eigenvalues, Phase Velocity

Scientific paper

The contention that dissipation within the body of the earth has only a second-order effect on the eigenfrequencies of the free oscillations arises from the neglect of the dispersion that must accompany attenuation. Consideration of three models for the attenuation-dispersion pair shows that frequency shifts of the order of 1% are to be expected - a result of some significance in the inversion of free-oscillation data.

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