A Geometric Model of Horizontal Sound Refraction through a Circular Eddy.

Abstract

Sound rays spread horizontally more rapidly upon refraction across a warm eddy than a homogenous water mass. The reverse is true of a cold eddy, causing shadow zones. Focal lengths and position of apparent images are the same using the cylindrical model or the physical thin-lens equation. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1974
Accession Number
ADA046564

Entities

People

  • William H. Gemmill

Organizations

  • Naval Oceanographic Office

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Cape Hatteras
  • Eddy Currents
  • Equations
  • Geometry
  • Gulf Stream
  • Oceans
  • Physical Properties
  • Ray Tracing
  • Refraction
  • Refractive Index
  • Sargasso Sea
  • Systems Analysis
  • Underwater Sound
  • Water Masses

Fields of Study

  • Physics

Readers

  • Environmental Engineering
  • Structural Dynamics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.