Three Dimensional Variation of Underwater Acoustic Propagation due to Nonlinear Internal Wave
Date Issued
2011
Date
2011
Author(s)
Zhang, Zh-Wei
Abstract
There is a biggest internal wave in the South China Sea. The amplitude can more than one hundred meter and the vertical current velocity can large then 2.5 meters per second. The internal wave perturbs the water column dramatically which affect sound propagation greatly. This thesis is about the sound propagation’s variation in three dimensions due to internal waves. The acoustic and environment data are from the 2007 NLIWI experiment. We study both depression and elevation internal waves simulates KdV formula analysis the 3D effect on acoustic propagation using FOR3D model.
Subjects
underwater acoustic propagation
nternal wave
three-dimensional vibration
FOR3D
Type
thesis
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