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dc.contributor.authorPrasannaKumar, S.
dc.contributor.authorNavelkar, G.S.
dc.contributor.authorMurty, T.V.R.
dc.contributor.authorSomayajulu, Y.K.
dc.contributor.authorSaran, A.K.
dc.contributor.authorMurty, C.S.
dc.date.accessioned2009-01-21T11:16:55Z
dc.date.available2009-01-21T11:16:55Z
dc.date.issued1996
dc.identifier.citationIndian Journal of Marine Sciences, Vol.25; 173-178p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/2256
dc.description.abstractSimulated acoustic propagation showed a gradual deepening of the ray paths from the southern ocean towards tropics. Also the axis of the sound channel deepens from 150 m to 1600 m. Sudden jumps were noticed in the acoustic ray paths in the vicinity of the Sub Tropical Convergence. Measured acoustic signals, received at the Indian listening station has a signal to noise ratio (SNR) of 20 dB on an average and confirmed their detectability over distances as far as 7000 km. The phase stability of these signals allowed coherent averaging time of 20 minutes for corresponding increase in the SNR. Measured intensity losses were about 135 dB in contrast to those computed values of 150 dB
dc.language.isoen
dc.publisherNISCAIR, CSIR
dc.rightsCopyright [1996]. 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.
dc.subjectacoustic tomography
dc.subjectacoustic properties
dc.subjectnumerical analysis
dc.subjectsimulation
dc.titleNumerical simulation and measurements of acoustic transmissions from Heard Island to the equatorial Indian Ocean
dc.typeJournal Article


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