An ambient noise model for the northeast Pacific Ocean basin

Author

Wagstaff, R.A.

Author_Institution

Naval Undersea Center, San Diego, CA, USA

Volume

30

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

286

Lastpage

294

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;

fLanguage

English

Journal_Title

Oceanic Engineering, IEEE Journal of

Publisher

ieee

ISSN

0364-9059

Type

jour

DOI

10.1109/JOE.2004.836993

Filename

1522507