AMBIENT NOISE IN THE MEDITERRANEAN SEA

Abstract

Ambient noise was measured in four deep basins of the Mediterranean Sea for three consecutive days at each station during June of 1968. Sonobuoys with hydrophones suspended at a depth of 95 feet were used to collect and transmit the data to a quiet ship several miles distant. Eight frequencies in 1/2-octave bands were used in the range from 16 to 800 Hz. Levels in these bands were read at 10-min intervals, sight averaged over this time, and are presented as distribution functions and average values for each station along with wind information. Environmental data such as velocity and temperature profiles, depth measurements and traffic observations are reported.

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Document Details

Document Type
Technical Report
Publication Date
Jul 23, 1968
Accession Number
AD0392736

Entities

People

  • Elizabeth M. Arase
  • T. Arase

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Ambient Noise
  • Atlantic Ocean
  • Calibration
  • Department Of Defense
  • Distribution Functions
  • Frequency
  • Frequency Bands
  • Government Procurement
  • Measurement
  • Mediterranean Sea
  • Military Research
  • National Security
  • Noise
  • Oceans
  • Radio Frequency
  • Recording Systems
  • Security

Fields of Study

  • Environmental science

Readers

  • Acoustics.
  • Oceanography.