Experimental Verification of a Horizontal-Refraction Technique Using North Pacific Acoustic Laboratory Data

Abstract

To estimate a long-period (weeks-to-months) time-variation of horizontal-refraction-angles (HRA) of sound signals propagating over long range and to evaluate the usefulness of HRA for remote sensing of meso-to-global-scale ocean inner structure. To estimate a short-period (hours-to-days) variation of HRA, to estimate the effects of sound scattering by internal waves, and to evaluate possible reduction of corresponding HRA errors by time averaging. To calculate statistical characteristics of acoustic mode amplitudes using experimental data and to compare the results obtained with theoretical estimates.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2001
Accession Number
ADA627702

Entities

People

  • Alexander G. Voronovich
  • Vladimir E. Ostashev

Organizations

  • National Oceanic and Atmospheric Administration

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustic Signals
  • Acoustic Tomography
  • Amplitude
  • Buildings And Structures
  • Crystal Lattice Vibrations
  • Detection
  • Experimental Data
  • Frequency
  • Frequency Bands
  • Hydrophones
  • Internal Waves
  • Refraction
  • Remote Sensing
  • Scattering
  • Verification
  • Waves

Readers

  • Acoustical Oceanography.