Sound Propagation in the Ocean

Course #PH4455

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Clock Est. completion in 3 months

Location pin Offered through Distance Learning

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Overview

An advanced treatment of the subject. Topics include: reflection of spherical waves from ocean boundaries; normal mode propagation of sound; inhomogeneous wave equation and the point source in cylindrical coordinates; shallow water channel with fluid and solid bottoms; the deep sound channel and the WKB approximation; range-dependent channels; adiabatic normal modes and the parabolic equation; multi-path propagation; application to matched field processing and source localization.

Included in Degrees & Certificates

  • 535

Prerequisites

  • PH3452
  • Or consent of instructor

Learning Outcomes

Upon successful completion of this course, a student will be able to:

  • Calculate plane-wave reflection coefficient at a fluid-solid interface and from a set of fluid layers;
  • Calculate the wave field, including head waves, at reflection of a spherical sound wave from a fluid-fluid or fluid-solid interface;
  • Obtain the normal-mode and ray-theoretical solutions of the acoustic wave equations in shallow and deep water;
  • Assess the sensitivity of various acoustic observables to variations and uncertainties in the environmental parameters;
  • Assess significance of horizontal refraction and 3-D effects in typical propagation scenarios;
  • Evaluate and interpret various underwater propagation phenomena;
  • Compute basic solutions to the acoustic wave equation in the narrow- and wide-angle parabolic approximations;
  • Identify the limitations of different numerical prediction algorithms.