Measuring Undersea Noise from Breaking Waves

Abstract

Breaking waves are ubiquitous on the Earth's oceans and play an important role in air-sea interactions, which are important to global climatological effects. Of particular interest to the Navy, breaking waves can be a dominant source in the undersea ambient noise field. Although breaking waves have been known to be the source mechanism of this sound for some time, most predictive models have been limited to simply associating sound levels to wind speeds. Recently NRL has undertaken simultaneous measurements of the surface expression of breaking waves, via radar and video, and their subsequent acoustic emissions to understand the relationships between characteristics (size, duration, etc.) of individual breaking waves and the generated acoustic noise spectra.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA518330

Entities

People

  • Mark A. Sletten
  • S. L. Means

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Arrays
  • Acoustic Emissions
  • Acquisition
  • Ambient Noise
  • Arrays
  • Data Acquisition
  • Detection
  • High Resolution
  • Human Factors Engineering
  • Images
  • Measurement
  • Noise
  • Predictive Modeling
  • Scattering
  • Video
  • Video Cameras
  • Video Images

Fields of Study

  • Environmental science

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Coastal Oceanography
  • Computational Modeling and Simulation