Sediment Acoustics: LF Sound Speed, HF Scattering and Bubble Effects

Abstract

Physically sound models of acoustic interaction with the ocean floor including penetration, reflection and scattering in support of MCM and ASW needs. The objectives are to fill important gaps in our knowledge and understanding of ocean sediment acoustics, including (1) a new model to account for the recently measured low-frequency sound speed anomaly, (2) new scattering mechanisms to augment current Navy models of high-frequency bottom scattering, and (3) the study of time dependent propagation and scattering effects due to shallow water gas bubbles in the sediment.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2006
Accession Number
ADA612090

Entities

People

  • Nicholas P. Chotiros

Organizations

  • University of Texas at Austin

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustics
  • Angular Motion
  • Databases
  • Equations
  • Frequency
  • Gases
  • Kinetic Energy
  • Materials
  • Measurement
  • Physics
  • Scattering
  • Seabed
  • Sediments
  • Shallow Water
  • Statistical Analysis
  • Water Gases

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Naval Mine Countermeasure Systems Development.
  • Wave Propagation and Nonlinear Chaotic Dynamics.