Sound Propagation South of Martha's Vineyard.

Abstract

An experiment was performed south of Martha's Vineyard, Massachusetts, on the Long Island platform using an embedded triaxial geophone and a colocated hydrophone as a receiver. The data shows low propagation loss even with a strong negative sound velocity gradient in the water. The signals from the embedded vertical geophone show 10 to 12 dB less apparent propagation loss than the signals from the hydrophone in the 30 to 200 Hz frequency band. At lower frequencies, signals from all four sensors were similar. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1980
Accession Number
ADA091024

Entities

People

  • Richard J. Hecht

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustics
  • Background Noise
  • Detectors
  • Flux Density
  • Frequency
  • Frequency Bands
  • Frequency Response
  • Geophones
  • Group Velocity
  • Hydrophones
  • Measurement
  • Military Research
  • New England
  • New York
  • Observation
  • Particles
  • Phase Velocity

Readers

  • Oceanography.
  • Seismology