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18 - Waveform Inversion of Correlation Data

from Part IV - Inversion for Earth Structure

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

The results of cross-correlation of seismic records depend on both the distribution of seismic sources and the structure in the vicinity of the path between the stations being correlated. The differences between the segments of the correlograms corresponding to opposite senses of propagation between the stations provide information on source excitation, while the properties of the dominant arrivals are mainly sensitive to structure.These properties can be exploited in inversion of the correlation wavefield, to extract both noise sources and Earth structure.

Type
Chapter
Information
Exploiting Seismic Waveforms
Correlation, Heterogeneity and Inversion
, pp. 413 - 427
Publisher: Cambridge University Press
Print publication year: 2020

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