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Acoustic mine detection using the Navy's CASS-GRAB

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Author
Chu, Peter C.
Cintron, Carlos
Keenan, Ruth E.
Haeger, Steven D.
Date
2002
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Abstract
The purpose of this work is to determine the necessity of a near real time ocean modeling 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. Sound speed profiles inputted into the CASS/GRAB were calculated from observational and climatological data sets for different seasons and regions of four different bottom types (sand, gravel, mud, and rock). The CASS/GRAB model outputs were compared to the outputs from corresponding MODAS data sets. The results of the comparisons demonstrated in many cases a significant acoustic difference between the alternate profiles. These results demonstrated that there is a need for a predictive modeling capability such as MODAS to address the Mine Warfare (MIW) needs in the Yellow Sea region. There were some weaknesses detected in the profiles the MODAS model produces in the Yellow Sea, which must be resolved before it can reliably address the MIW needs in that region.
Description
Fifth International Symposium on Technology and Mine Problem, Society for Counter-Ordnance Technology, Monterey, in CD-Rom
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.
URI
http://hdl.handle.net/10945/36255
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