| dc.contributor.author | Sridevi, B. | |
| dc.contributor.author | Murty, T.V.R. | |
| dc.contributor.author | Sadhuram, Y. | |
| dc.contributor.author | Murty, V.S.N. | |
| dc.date.accessioned | 2011-06-16T05:22:26Z | |
| dc.date.available | 2011-06-16T05:22:26Z | |
| dc.date.issued | 2011 | |
| dc.identifier.citation | Natural Hazards, vol.57(3); 2011; 563-576 | |
| dc.identifier.uri | http://drs.nio.org/drs/handle/2264/3863 | |
| dc.description.abstract | Internal Wave (IW) characteristics and the impact of IW on acoustic field have been studied utilizing the hourly time series of temperature and salinity data collected at a coastal site off Paradeep (north Bay of Bengal) during 24-25 October 2008. The IW characteristics, viz. period (t sub (per)), velocity (C sub (vel)), wavelength (L), and wave numbers (k), are found to be 2.133-34.72 h, 0.135 km h sup (-1), 0.37-6.2 km and 2.70-0.16 cycles km sup (-1), respectively. The semi-diurnal tidal forces are predominant than diurnal as well as at other frequencies and its contribution is about 64% towards the total potential energy (E 0 = 3.34 J sup (-2)). Sound velocity perturbations with space and time in the presence of IW field are examined from Garrettt-Munk (GM) model. Transmission loss anomaly for optimized source-receiver configuration at the depth of 53 m and range of 9 km has been computed from acoustic modelling. The loss in the acoustic transmission is found to be 38.4 dB in the presence of low-frequency IW field. | |
| dc.language.iso | en | |
| dc.publisher | Springer | |
| dc.rights | An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2011] Springer. | |
| dc.subject | Internal waves | |
| dc.subject | Garrett-Munk model | |
| dc.subject | Acoustic modelling | |
| dc.subject | Ray paths | |
| dc.title | Impact of internal waves on the acoustic field at a coastal station off Paradeep, east coast of India | |
| dc.type | Journal Article | |
