Record Details


Field	Value

Title	Numerical simulation and measurements of acoustic transmissions from Heard Island to the equatorial Indian Ocean

Creator	Kumar, S Prasanna Navelkar, G S Murty, T V Ramana Somayajulu, Y K Saran, A K Murty, C S

Description	173-178 Simulated 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.

Date	2016-11-17T07:16:35Z 2016-11-17T07:16:35Z 1996-09

Type	Article

Identifier	0975-1033 (Online); 0379-5136 (Print) http://nopr.niscair.res.in/handle/123456789/37116

Language	en_US

Rights	CC Attribution-Noncommercial-No Derivative Works 2.5 India

Publisher	NISCAIR-CSIR, India

Source	IJMS Vol.25(3) [September 1996]

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