Low-Frequency Sound Attenuation in Open Water.

Abstract

A relaxation process, based on organic particulate matter (plankton) in open water, is described and theoretically derived. It is similar to a theoretically derived and experimentally verified process in aerosols and relates relaxation time to shear (Stokes) force. The derived formulas are applied to demonstrate probable significant differences among low-frequency sound-attenuation values in various water masses. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1970
Accession Number
AD0876730

Entities

People

  • L. R. B. Duykers

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Attenuation
  • Frequency
  • Open Water
  • Particulate Matter
  • Particulates
  • Plankton
  • Relaxation Time
  • Water
  • Water Masses

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aerosol Science/Aerosol Physics
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.