Project CANUS: Sound Propagation and Reverberation Measurement in Hudson Bay.

An experiment was conducted in Hudson Bay during August 1970 to obtain propagation and reverberation data below 12kHz. A listening hydeophone was suspended from an Amphibian stationed 90 miles east of Cape Churchill. Explosive charges were dropped from an aircraft along a 270-mile track to Coats Isl...

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Bibliographic Details
Main Author: Browning,David G.
Other Authors: NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I
Format: Text
Language:English
Published: 1971
Subjects:
Physical and Dynamic Oceanography
Non-electrical Energy Conversion
(*UNDERWATER SOUND
HUDSON BAY)
(*HUDSON BAY
ACOUSTIC PROPERTIES)
REVERBERATION
EXPLOSIVE CHARGES
DETONATIONS
SHALLOW WATER
AUDIO FREQUENCY
Most project-2
Hudson Bay
Hudson
Coats Island
Cape Churchill
Online Access:http://www.dtic.mil/docs/citations/AD0736155
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0736155
Description
Summary:An experiment was conducted in Hudson Bay during August 1970 to obtain propagation and reverberation data below 12kHz. A listening hydeophone was suspended from an Amphibian stationed 90 miles east of Cape Churchill. Explosive charges were dropped from an aircraft along a 270-mile track to Coats Island. Additional charges were detonated close to hydrophone to obtain the reverberation data. BT information from along the propagation track indicated a sound channel with an axial depth of 80 feet over a flat hard bottom at an average depth of 425 feet. Propagation loss curves were obtained for 1/3-octave bands from 300 to 5000 Hz and reverberation levels for 1-octave bands from 200 to 12,800 Hz. (Author)

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