Ray Modeling Methods for Range Dependent Ocean Environments

Abstract

This report describes mathematical, numerical, and software design methods for ray models for range dependent ocean environments. Numerical techniques are described for solving ray path and intensity differential equations and for computing path length and travel time integrals. Modified cubic splines fit the bathymetry and sound speed profiles with the degree of mathematical smoothness required to eliminate false caustics and shadow zones, while avoiding non-physical excursions sometimes observed in standard splines. Several new interpolation procedures yield eigenray path information.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA137202

Entities

People

  • Terry L. Foreman

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Attenuation
  • Bottom Loss
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Geography
  • Interpolation
  • Losses
  • Numerical Analysis
  • Ocean Environments
  • Phase Shift
  • Physics Laboratories
  • Reflection
  • Three Dimensional
  • Travel Time

Readers

  • Approximation Theory.
  • Wave Propagation and Nonlinear Chaotic Dynamics.