Regional Dependence of Very Low-Frequency Sound Attenuation in the Deep Sound Channel: Correlation with Internal Wave Measurements. A Paper Presented at the Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan, 27 November-1 December 1978, Honolulu, Hawaii.

Abstract

The most promising mechanism for the very low-frequency sound attenuation observed in the deep sound channel is diffusive scattering by internal waves, Mellen et al. (1976) have obtained estimates for the extra attenuation using the Garrett-Munk internal wave model and found consistency with the lower experimental values reported. Kibblewhite et al. (1978) have shown a definite regional dependence in the Pacific. This paper compares regional oceanographic measurements with the Garrett-Munk internal wave model and also correlate local acoustic measurements with estimates of the extra attenuation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 22, 1981
Accession Number
ADA105061

Entities

People

  • David G. Browning
  • Michael J. Fecher
  • Robert H. Mellen

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Ranges
  • Attenuation
  • Buoyancy
  • Coefficients
  • Data Sets
  • Engineering
  • Equations
  • Frequency
  • Internal Waves
  • Materials
  • Measurement
  • Models
  • Scattering
  • Universities
  • Very Low Frequency
  • Waves

Readers

  • Acoustical Oceanography.
  • Space/Atmospheric Physics.