Scientific Analysis of ASIAEX South China Sea Data

Abstract

This grant funded follow-up work with data collected under other ONR grants during the 2001 South China Sea portion of the Asian Seas International Acoustics Experiment (ASIAEX). The goals of the effort were to further explain the nature of the fluctuating acoustic signals transmitted from fixed sources to fixed receivers, and to study characteristics of the ambient noise. Both studies are in the band of 200-450 Hz. The received signals from the moored sources have a very complex form, and the long-term goals of our research are to find a robust relationship between characteristic features of the signal fluctuations and features of the internal wave field. Under this grant, various features of the measured acoustic field were examined (some computed under prior grants, and some computed as described below) to prepare for a comparison to the wave field, and a theory was developed for the prediction of the horizontal acoustic coherence scale.

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Document Details

Document Type
Technical Report
Publication Date
Aug 18, 2005
Accession Number
ADA437817

Entities

People

  • Timothy F Duda

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Propagation
  • Acoustic Signals
  • Acoustics
  • Ambient Noise
  • Computations
  • Continental Shelves
  • Contracts
  • Frequency
  • Frequency Bands
  • Internal Waves
  • Noise
  • Oceanographic Engineering
  • Oceans
  • Probability Distributions
  • South China Sea
  • Waves

Readers

  • Acoustics.
  • Oceanography.
  • Technical Research and Report Writing.