APPLICATION OF THE WKBJ GREEN'S FUNCTION TO ACOUSTIC PROPAGATION IN HORIZONTALLY STRATIFIED OCEANS.

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16 Citations (Scopus)

Abstract

The Green's function (response to an impulsive point source) for ocean acoustic propagation is found using the WKBJ seismogram technique. It is shown that the WKBJ Green's function reduces to geometric ray theory; in the vicinity of acoustics it gives the well-known Airy function range dependence of each harmonic component of the acoustic field. Arrival patterns constructed employing the WKBJ Green's function are in excellent agreement with a solution to the parabolic equation (PE) except when the source and/or receiver depth is near the turning depth of a geometric ray. Agreement with a measured arrival pattern is also found to be good.

Original languageEnglish (US)
Pages (from-to)1427-1432
Number of pages6
JournalJournal of the Acoustical Society of America
Volume71
Issue number6
StatePublished - Jun 1982
Externally publishedYes

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acoustic propagation
oceans
Green's functions
arrivals
rays
Airy function
acoustics
seismograms
point sources
receivers
harmonics
Acoustics
Ocean
Ray

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

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abstract = "The Green's function (response to an impulsive point source) for ocean acoustic propagation is found using the WKBJ seismogram technique. It is shown that the WKBJ Green's function reduces to geometric ray theory; in the vicinity of acoustics it gives the well-known Airy function range dependence of each harmonic component of the acoustic field. Arrival patterns constructed employing the WKBJ Green's function are in excellent agreement with a solution to the parabolic equation (PE) except when the source and/or receiver depth is near the turning depth of a geometric ray. Agreement with a measured arrival pattern is also found to be good.",
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