Accession Number : AD0736155
Title : Project CANUS: Sound Propagation and Reverberation Measurement in Hudson Bay.
Descriptive Note : Research rept.,
Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I
Personal Author(s) : Browning,David G.
Report Date : 01 DEC 1971
Pagination or Media Count : 31
Abstract : 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)
Descriptors : (*UNDERWATER SOUND, HUDSON BAY), (*HUDSON BAY, ACOUSTIC PROPERTIES), REVERBERATION, EXPLOSIVE CHARGES, DETONATIONS, SHALLOW WATER, AUDIO FREQUENCY
Subject Categories : Physical and Dynamic Oceanography
Non-electrical Energy Conversion
Distribution Statement : APPROVED FOR PUBLIC RELEASE