Observation of sound focusing and defocusing due to propagating nonlinear internal waves

J. Luo; M. Badiey; E. A. Karjadi; B. Katsnelson; A. Tskhoidze; J. F. Lynch; J. N. Moum

doi:10.1121/1.2963087

Observation of sound focusing and defocusing due to propagating nonlinear internal waves

J. Luo, M. Badiey, E. A. Karjadi, B. Katsnelson, A. Tskhoidze, J. F. Lynch, J. N. Moum

Research output: Contribution to journal › Article › peer-review

Abstract

Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water '06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track. Preliminary analysis of the acoustic wave temporal intensity fluctuations agrees with previously observed phenomena and the existing theory of the horizontal refraction mechanism, which causes focusing and defocusing when the acoustic track is nearly parallel to the front of the internal waves [J. Acoust. Soc. Am., 122(2), pp. 747-760 (2007)].

Original language	English
Pages (from-to)	EL66-EL72
Journal	Journal of the Acoustical Society of America
Volume	124
Issue number	3
DOIs	https://doi.org/10.1121/1.2963087
State	Published - 2008
Externally published	Yes

Bibliographical note

Funding Information:
The authors wish to thank all participants of the SW06 experiment, especially the scientific and ship personnel aboard the R/V S HARP and R/V O CEANUS . This research was supported by the Ocean Acoustic Program (321OA) of the Office of Naval Research through Grant No. N00014-07-1-0546.

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.2963087

Cite this

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title = "Observation of sound focusing and defocusing due to propagating nonlinear internal waves",

abstract = "Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water '06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track. Preliminary analysis of the acoustic wave temporal intensity fluctuations agrees with previously observed phenomena and the existing theory of the horizontal refraction mechanism, which causes focusing and defocusing when the acoustic track is nearly parallel to the front of the internal waves [J. Acoust. Soc. Am., 122(2), pp. 747-760 (2007)].",

author = "J. Luo and M. Badiey and Karjadi, {E. A.} and B. Katsnelson and A. Tskhoidze and Lynch, {J. F.} and Moum, {J. N.}",

note = "Funding Information: The authors wish to thank all participants of the SW06 experiment, especially the scientific and ship personnel aboard the R/V S HARP and R/V O CEANUS . This research was supported by the Ocean Acoustic Program (321OA) of the Office of Naval Research through Grant No. N00014-07-1-0546.",

year = "2008",

doi = "10.1121/1.2963087",

language = "English",

volume = "124",

pages = "EL66--EL72",

journal = "Journal of the Acoustical Society of America",

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TY - JOUR

T1 - Observation of sound focusing and defocusing due to propagating nonlinear internal waves

AU - Luo, J.

AU - Badiey, M.

AU - Karjadi, E. A.

AU - Katsnelson, B.

AU - Tskhoidze, A.

AU - Lynch, J. F.

AU - Moum, J. N.

N1 - Funding Information: The authors wish to thank all participants of the SW06 experiment, especially the scientific and ship personnel aboard the R/V S HARP and R/V O CEANUS . This research was supported by the Ocean Acoustic Program (321OA) of the Office of Naval Research through Grant No. N00014-07-1-0546.

PY - 2008

Y1 - 2008

N2 - Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water '06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track. Preliminary analysis of the acoustic wave temporal intensity fluctuations agrees with previously observed phenomena and the existing theory of the horizontal refraction mechanism, which causes focusing and defocusing when the acoustic track is nearly parallel to the front of the internal waves [J. Acoust. Soc. Am., 122(2), pp. 747-760 (2007)].

AB - Fluctuations of the low frequency sound field in the presence of an internal solitary wave packet during the Shallow Water '06 experiment are analyzed. Acoustic, environmental, and on-board ship radar image data were collected simultaneously before, during, and after a strong internal solitary wave packet passed through the acoustic track. Preliminary analysis of the acoustic wave temporal intensity fluctuations agrees with previously observed phenomena and the existing theory of the horizontal refraction mechanism, which causes focusing and defocusing when the acoustic track is nearly parallel to the front of the internal waves [J. Acoust. Soc. Am., 122(2), pp. 747-760 (2007)].

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Observation of sound focusing and defocusing due to propagating nonlinear internal waves

Abstract

Bibliographical note

ASJC Scopus subject areas

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