Yellow Sea acoustic uncertainty caused by hydrographic data error
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Authors
Haeger, Steven D.
Schneider, David
Keenan, Ruth E.
Fox, Daniel N.
Chu, Peter C.
Cintron, Carlos J.
Subjects
Advisors
Date of Issue
2002
Date
2002
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Abstract
This paper investigates the acoustic uncertainty due to hydrographic data error and in
turn to determine the necessity of a near real time ocean analysis capability such as the
Naval Oceanographic Office’s (NAVOCEANO) Modular Ocean Data Assimilation
System (MODAS) model in shallow water (such as the Yellow Sea) mine hunting
applications using the Navy’s Comprehensive Acoustic Simulation System / Gaussian
Ray Bundle (CASS/GRAB) model. To simulate hydrographic data uncertainty, Gausiantype
errors (produced using the random number generator in MATLAB) with zero mean
and three standard deviations (1 m/s, 5 m/s, and 10 m/s) are added to the sound profile.
It is found that the acoustic uncertainty depends on the location of the error and sound
sources. It is more sensitive to errors in the isothermal structure in the winter than in
the layered structure in the summer.
Type
Book Chapter
Description
In “Impact of Littoral Environment Variability on Acoustic Prediction and Sonar Performance, edited by N.G. Pace and F. B. Jensen. Kluwar Academic Publisher (ISBN-10-1402008163), Boston, 563-570
Series/Report No
Department
Department of Oceanography
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Citation
Chu, P.C., C.J. Cintron, S.D. Haeger, D. Schneider, R.E. Keenan
D.N. Fox, 2002: Yellow Sea acoustic uncertainty caused by hydrographic data errors. In: Impact of Littoral Environment Variability on Acoustic Prediction and Sonar Performance, edited by N.G. Pace and F. B. Jensen. Kluwar Academic Publisher (ISBN-10-1402008163), Boston, 563-570
D.N. Fox, 2002: Yellow Sea acoustic uncertainty caused by hydrographic data errors. In: Impact of Littoral Environment Variability on Acoustic Prediction and Sonar Performance, edited by N.G. Pace and F. B. Jensen. Kluwar Academic Publisher (ISBN-10-1402008163), Boston, 563-570
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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.