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Effects of Warm Eddy on Long-range Sound Propagation in the East Sea
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 Title & Authors
Effects of Warm Eddy on Long-range Sound Propagation in the East Sea
Kim, Won-Ki; Cho, Chang-bong; Park, Joung-Soo; Hahan, Jooyoung; Na, Youngnam;
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It is well known that warm eddy is frequently developed through the year in the East Sea. The warm eddy may affect sound propagation due to changes of sound velocity structures in the sea water. To verify the effects of the warm eddy for long-range sound propagation, transmission loss and performance surface, which were used mean direct signal excess range generated by sound propagation modeling using re-analyzed climatology data on March 23th in 2007 were analysed. From these analyses, we found that characteristics of sound propagation in the sea water are changed by the warm eddy, and boundaries of the warm eddy act as a barrier for long-range sound propagation. Furthermore, these disadvantages of the eddy related to sound propagation were increased when the sea bottom depth is shallow.
East Sea;Warm eddy;Long-range sound propagation;Ocean bottom depth;
 Cited by
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