Abstract
Effects of Internal Solitary Waves (ISWs) on the acoustic intensity striation patterns are studied using a unique data set collected in the South China Sea during the ONR Asian Seas International Acoustics Experiment (ASIAEx). The data set contains measured broadband (270–330 Hz) acoustic fields on a 32-element, ∼400 m aperture horizontal array describing two regimes where the ISW packet being present and not present in a 19 km long propagation track. The geometry of the ISW packet was captured by a Synthetic Aperture Radar (SAR) image when it entered the propagation track at a 50 deg angle. It has been observed that ISWs introduce larger intensity fluctuations as well as frequency-shifts in the striation patterns when they are in the propagation track. However, the slope of the striations seems to be less affected by the presence of ISWs. Results from several broadband simulations are also presented to describe both acoustic intensity fluctuations and variations in the striation patterns in terms of acoustic mode coupling and mode refraction induced by ISWs. [Work supported by ONR.]
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
