High-Frequency Acoustic Propagation in Shallow, Energetic, Highly-Salt-Stratified Environments

Abstract

The long term goal of this research is to measure and understand high-frequency, line-of-sight acoustic propagation in an estuarine environment characterized by strong tidal flow, often large salinity stratification, high shear, high dissipation rates of turbulent kinetic energy, shear instabilities, and increased water property variability. Acoustic propagation techniques provide a means for remote-sensing of the path-averaged statistical structure and motion of the intervening flow, providing information on the 2-dimensional characteristics of turbulence, microstructure, and advection. Estuaries provide an excellent environment to quantify stratified turbulence and its influence on acoustic propagation as a broad range of stratification and turbulence intensities are encountered within a single tidal cycle.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 03, 2013
Accession Number
ADA590718

Entities

People

  • Andone C. Lavery
  • David M. Farmer

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Propagation
  • Acoustic Scattering
  • Acoustic Waves
  • Acoustics
  • Backscattering
  • Environment
  • Flow
  • Fluid Flow
  • Frequency
  • Line Of Sight
  • Measurement
  • Physics
  • Remote Sensing
  • Scattering
  • Two Dimensional
  • Underwater Acoustics

Fields of Study

  • Environmental science

Readers

  • Acoustical Oceanography.
  • Coastal Oceanography
  • Fluid Mechanics and Fluid Dynamics.