ANALYSIS OF THE UNDERWATER NOISE OF CCGS JOHN A. MACDONALD

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Authors
  1. Leggat, L.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
A sound range trial with the Canadian icebreaker CCGS JOHN A. MACDONALD was carried out on the Halifax Sound Range to provide data for the "Marine Arctic Transportation Sound Physics and Responses of Marine Mammals" Project. The ship underwater noise was measured for a number of ship speeds and propeller operating conditions. Underwater radiated noise results are reported for the conditions tested in octave-bands in terms of the equivalent source mean spectrum level over the frequency band of 8 Hz and 32 kHz. A comparison is drawn between the measured levels and levels predicted using an empirical technique. Results show that, in general, measured noise levels exceed predicted levels by between 6 and 8 dB.
Report Number
DREA-TM-85-223 — Technical Memorandum
Date of publication
15 Dec 1985
Number of Pages
21
DSTKIM No
86-00501
CANDIS No
106122
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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