ARCTIC ACOUSTIC TRANSMISSION LOSS AND AMBIENT NOISE

Abstract

A model is advanced to predict arctic underwater acoustic attenuation that allows some spherical and some cylindrical divergence, coupled with a reflection loss per unit distance. Data collected from a variety of sources of measurements of arctic transmission losses are used to derive reflection loss and to compare with the model. The standard deviation of error between measurements and model is found to be plus or minus 5 db at the lowest and plus or minus 6 at the highest frequency of measurement. The effects on transmission loss of such factors as source, receiver and bottom depths are discussed. The results of a year-long measurement program at Ice Island T-3 to study arctic ambient noise are given.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1966
Accession Number
AD0485552

Entities

People

  • Beaumont M. Buck

Tags

Communities of Interest

  • Counter IED
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustics
  • Ambient Noise
  • Arctic Ocean
  • Explosives
  • Frequency
  • Measurement
  • Munitions
  • Naval Operations
  • Naval Warfare
  • Navy
  • Oceans
  • Reflection
  • Standards
  • Transmission Loss
  • Underwater Sound
  • Water

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Mathematics or Statistics