A Sensitivity Study of Underwater Sound Propagation Loss and Bottom Loss.

Abstract

This report describes the techniques used and results obtained in a model study of the sensitivity of propagation loss to variations in bottom loss and bottom loss to variations in the geoacoustical models of the subbottom. The propagation loss sensitivity study was carried out, using both ray and wave propagation models, for a variety of source-receiver depth combinations and with various sound speed profile types. The bottom loss sensitivity study was carried out using a model developed by Applied Research Laboratories (ARL), The University of Texas at Austin, and is concentrated on addressing questions of hidden depths, substrate effects, and sound speed and density profile effects. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1977
Accession Number
ADA041378

Entities

People

  • Aubrey L. Anderson
  • Karl C. Focke
  • Kenneth E. Hawker

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bottom Loss
  • Computer Programming
  • Convergence Zones (Sonar)
  • Dead Reckoning
  • Frequency
  • Geometry
  • Grazing Angles
  • Intensity
  • Losses
  • Low Angles
  • Materials
  • Refraction
  • Ridges
  • Secondary Waves
  • Toes
  • Underwater Sound
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Systems Analysis and Design