Publication:
On horizontal coherence estimates from path integral theory for sound propagation through random ocean sound-speed perturbations

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Authors
Colosi, John A.
Subjects
Advisors
Date of Issue
2013-10
Date
October 2013
Publisher
Language
Abstract
Previously published results from path integral theory for the horizontal coherence length utilized an empirical relation for the phase structure function density that was quite different from path integral results obtained for depth and time coherence where the phase structure function density was expanded to second order in the lag. This letter presents a result for horizontal coherence length which carries out the quadratic expansion and analytically solves the integral equations. Some simple calculations of horizontal coherence length demonstrate the differences between the present and old expressions. In contrast to the empirical result the present expression shows the expected one over square-root range and one over frequency scalings. The results also show more clearly how transverse coherence is sensitive to the space-time scales of internal waves and other environmental parameters.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1121/1.4818778
Series/Report No
Department
Oceanography
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Office of Naval Research Ocean Acoustics Program Code (322)
Funder
Office of Naval Research Ocean Acoustics Program Code (322)
Format
3 p.
Citation
J. Acoust. Soc. Am., Vol. 134, No. 4, Pt. 2 (October 2013) p. 3116-3118
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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