TOWED SEISMIC ARRAY NOISE MEASUREMENTS,

Abstract

The noise environment encountered by a seismic hydrophone array towed astern of the oceanographic research vessel, U.S.N.S. Lynch (T-AGOR-7), was investigated as a function of cable scope (200, 400, and 800 feet) and towing speed (about 2, 5, 8, 10, and 12 knots). Third octave analysis (25 to 1000 Hz) is presented. Some spectral lines are investigated by 6% analysis. The expected decrease in noise level with increasing cable scope and decreasing speed was not observed when the array passed from the seasonal thermocline into the layer. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
AD0712520

Entities

People

  • Donald S. Blomquist
  • John J. Gilheany
  • John K. Krause

Organizations

  • The Catholic University of America

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Arrays
  • Environment
  • Hydrophones
  • Measurement
  • Seismic Arrays
  • Spectral Lines
  • Thermoclines

Readers

  • Acoustics.
  • Marine Hydrodynamics
  • Oceanography.