The AmplitudeDistance Curves for Waves Reflected at a
Plane Interface for Different Frequency RangesThe AmplitudeDistance Curves for Waves Reflected at a
Plane Interface for Different Frequency Ranges
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 Link:
 http://gji.oxfordjournals.org/cgi/content/short/13/13/187
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 Articles Articles
 Creator:
 Cerveny, Vlastislav
 Description
 The amplitude—distance curves for compressional
waves reflected at a plane interface between two elastic
halfspaces differ quite appreciably for different frequency ranges
(in the case of a symmetrical pointsource). At some distances from
the source, the amplitude—distance curves deviate considerably from
those computed by the methods of the geometric ray theory even at
very high frequency. At lower frequencies the characteristic shape
of the amplitude—distance curves implied by the geometric ray
theory may be completely changed. A whole series of models of the
interface was examined numerically. The results presented were
obtained by exact numerical integrations along suitably chosen
contours of integration in the complex plane, which suppress the
oscillatory character of the integrand. The method can be
generalized virtually without difficulties to cover also the more
general types of seismic waves propagating in a layered
medium.
 Publisher
 Oxford University Press
 Type
 TEXT
 Format
 text/html
 Rights
 Copyright (C) 1967, Oxford University Press
 Description
 The amplitude—distance curves for compressional
waves reflected at a plane interface between two elastic
halfspaces differ quite appreciably for different frequency ranges
(in the case of a symmetrical pointsource). At some distances from
the source, the amplitude—distance curves deviate considerably from
those computed by the methods of the geometric ray theory even at
very high frequency. At lower frequencies the characteristic shape
of the amplitude—distance curves implied by the geometric ray
theory may be completely changed. A whole series of models of the
interface was examined numerically. The results presented were
obtained by exact numerical integrations along suitably chosen
contours of integration in the complex plane, which suppress the
oscillatory character of the integrand. The method can be
generalized virtually without difficulties to cover also the more
general types of seismic waves propagating in a layered
medium.
 Publisher
 Oxford University Press
 Type
 TEXT
 Format
 text/html
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