Title :
An ambient noise model for the northeast Pacific Ocean basin
Author_Institution :
Naval Undersea Center, San Diego, CA, USA
fDate :
4/1/2005 12:00:00 AM
Abstract :
An ambient noise model for the Northeast Pacific Ocean Basin is presented. This model possesses the capability of synthesizing the noise field, with resolution in the vertical and horizontal finer than 1°. Simulation results utilizing the synthesized field are shown to be in excellent agreement with measured horizontal directionality, vertical directionality, and depth dependence data for frequencies from 12.5 to 250 Hz. An important difference between this model and other models is the consideration of the SOFAR channel component, which is the dominant noise at these low frequencies. It is shown that only when this component of the noise is included can the simulation results be expected to agree with measured data.
Keywords :
acoustic noise; oceanographic regions; 12.5 to 250 Hz; Northeast Pacific Ocean Basin; SOFAR channel component; ambient noise model; synthesized noise field; Acoustic measurements; Acoustic noise; Acoustic propagation; Frequency synthesizers; Low-frequency noise; Noise measurement; Oceans; Sea measurements; Underwater acoustics; Working environment noise; Ambient noise model; Pacific Ocean basin;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.2004.836993
