Accession Number : ADA189637

Title :   Freely Drifting Swallow Float Array: September 1986 Trip Report.

Descriptive Note : Technical memo.,

Corporate Author : SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB

Personal Author(s) : Culver, R L ; Hodgkiss, W S ; Edmonds, G L ; Anderson, V C

PDF Url : ADA189637

Report Date : Apr 1987

Pagination or Media Count : 216

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.

Descriptors :   *AMBIENT NOISE, *ARRAYS, *BUOYS, *FLOATS, *SOUND PRESSURE, BUOYANCY, CONTRACTORS, DEPTH, DRIFT, LEVEL(QUANTITY), NEUTRAL, OCEANS, PARTICLES, RECORDING SYSTEMS, VELOCITY, VERY LOW FREQUENCY, WEST(DIRECTION)

Subject Categories : Acoustics
      Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE