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12 - Scattering and StochasticWaveguides

from Part III - Interaction of Seismic Waves with Heterogeneity

Published online by Cambridge University Press:  16 November 2020

Brian L. N. Kennett
Affiliation:
Australian National University, Canberra
Andreas Fichtner
Affiliation:
ETH Zurich
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Summary

We here examine the processes of scattering in the Earth, the various zones where it is important and the way that these different zones influence observed seismograms.Guided waves in heterogeneous structures play an important role at high frequencies, and can be described as a stochastic waveguide effect. Waves can be guided even within high wavespeed zones by elongate heterogeneity. We discuss examples from the propagation of deep earthquakes in subduction zone environments, and for the oceanic and continental lithosphere.

Type
Chapter
Information
Exploiting Seismic Waveforms
Correlation, Heterogeneity and Inversion
, pp. 277 - 306
Publisher: Cambridge University Press
Print publication year: 2020

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