Arctic Site Survey

Abstract

The report discusses the development of a ray tracing program for calculating the sound intensity from sources in the ocean with surface and bottom reflections. Salinity and temperature gradients have been taken into consideration to calculate the sound velocity and absorption loss. The sound intensity is calculated by energy considerations included in the ray tube of adjacent rays. A formula has also been developed for calculating the intensity along a ray without considering the variation in the ray tube area. This involves the calculation of the radius of curvature of the wave front along the ray. Future plans on ray tracing call for the development of techniques for calculating sound intensities in the caustic region and higher order corrections.

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Document Details

Document Type
Technical Report
Publication Date
Jul 12, 1972
Accession Number
AD0745313

Entities

People

  • T. S. Chow

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Acoustic Attenuation
  • Contracts
  • Curvature
  • Earth Sciences
  • Equations
  • Geometry
  • Intensity
  • Losses
  • Military Research
  • Ray Tracing
  • Temperature Gradients
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Wave Propagation and Nonlinear Chaotic Dynamics.