A Computer Program to Calculate Normal Mode Propagation in a Medium in Which Stratification is a Function of Position.

Abstract

This program, written in FORTRAN V, uses normal code theory to predict acoustic propagation, in a medium whose velocity profile varies slowly with distance from the acoustic source, over an ocean bottom whose depth and acoustic impedance change slowly with range. It calculates and then produces CalComp plots for given modes at any frequency in the medium described above of the following: (a) Amplitude as a function of depth and the ray equivalent of any mode at given distances from a source; and (b) Propagation loss as a function of range.

Document Details

Document Type
Technical Report
Publication Date
Jan 14, 1971
Accession Number
ADA046680

Entities

People

  • William G. Kanabis

Organizations

  • Naval Underwater Systems Center

Tags

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Propagation
  • Acoustic Properties
  • Acoustics
  • Amplitude
  • Computer Programs
  • Computers
  • Frequency
  • Impedance
  • Physical Properties
  • Seabed
  • Stratification

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computer Science.