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Acoustic characteristics of the water of the Bay of Bengal

DRS at CSIR-National Institute of Oceanography

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Title Acoustic characteristics of the water of the Bay of Bengal
 
Creator Murty, T.V.R.
Somayajulu, Y.K.
Chodankar, P.V.
Murty, C.S.
 
Subject acoustics
wave propagation
temporal variations
environmental conditions
 
Description Acoustic eigen rays (rays connecting the source and receiver) have been indentified and their turning depth, path length, travel time etc. evaluated. Acoustic intensity loss due to mean environmental conditions, vergence along acoustic rays and the low frequency absorption due to the presence of boric acid and magnesium sulphate, etc. have been estimated. For a source-receiver distance of 300 km, computed intensity loss due to spreading for different eigen rays varies between 92 and 116 dB while that due to absorption is about 4.25 dB at 0.2 kHz and 15.25 dB at 0.4 kHz source frequencies for ranges of 300 km. This analysis can be applied to for target detection and source localization problems
 
Date 2009-05-06T11:16:55Z
2009-05-06T11:16:55Z
1993
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.22; 263-267p.
http://drs.nio.org/drs/handle/2264/2912
 
Language en
 
Rights Copyright [1993]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher NISCAIR, New Delhi