Freely Drifting Swallow Float Array: September 1986 Trip Report.

Abstract

Self-contained, freely-drifting Swallow floats capable of recording very low frequency (VLF) ambient ocean noise are under development by the contractor. The floats are ballasted to neutral buoyancy at midwater depth where they record the components of particle velocity from which sound pressure levels may be derived. A high frequency acoustic mutual interrogation system may be used to determine relative float positions. During an experiment conducted between 16 and 18 September 1986 approximately 50 miles west of San Diego, twelve Swallow float buoys were deployed to depths of 1000 to 2000 meters over a 24 hour period. This memorandum reports the preliminary analysis of data acquired from that experiment. Keywords: Swallow floats; Ambient ocean noise; Untethered floats, Particle velocity.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1987
Accession Number
ADA189637

Entities

People

  • G. L. Edmonds
  • R. L. Culver
  • V. C. Anderson
  • William Hodgkiss

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ambient Noise
  • Automatic Gain Control
  • Bottom Bounce
  • California
  • Classification
  • Detection
  • Detectors
  • Engines
  • Frequency
  • Military Research
  • Noise
  • Oceanography
  • Power Spectra
  • Radio Frequency
  • Seabed
  • Security
  • Tape Recorders

Readers

  • Oceanography.