HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 101-112, vol. 6, 2003 Mohsen Badiey University of Delaware, Newark, USA Boris Katsnelson Voronezh State University, Voronezh, Russia James Lynch Woods Hole Oceanography Institute, Woods Hole, USA Serguey Pereselkov Voronezh State University, Voronezh, Russia William Siegmann Renseller Polytechnical Insitute, Troy, USA Key words: Abstract: Broadband shot signal data are analyzed from the SWARM'95 experiment to investigate acoustic variability in presence of internal solitons. A 10 to 15 minute temporal variations in the intensity of the received signals were observed. These temporal variations are azimuthally dependent on variability of water column in the presence of internal solitary waves. These fluctuations should be explained by significant horizontal refraction (3D-effects) taking place when orientation of acoustic track is close to direction of the wave front of internal solitons. Analysis on the base of both equation of vertical modes/horizontal rays and PE in horizontal plane is carried out, good agreement between theoretical calculations and experimental data is obtained.
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