Accession Number:

ADA571821

Title:

Propagation of How-Frequency, Transient Acoustic Signals through a Fluctuating Ocean: Development of a 3D Scattering Theory and Comparison with NPAL Experimental Data

Descriptive Note:

Annual rept.

Corporate Author:

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION BOULDER CO EARTH SYSTEM RESEARCH LAB

Report Date:

2011-09-30

Pagination or Media Count:

8.0

Abstract:

Long-term goals Development of a new, 3D, modal theory of low-frequency, long-range sound propagation through a fluctuating ocean, including both CW and transient acoustic signals. Comparison of theoretical and numerical results with NPAL experimental data. Objectives To develop a 3D modal theory of broadband sound propagation though a fluctuating ocean, including analysis of the coherence function for transient acoustic signals and temporal coherence. To develop computer codes for calculation of the horizontal and vertical coherence functions of transient acoustic signals and temporal coherence. To compare theoretical and numerical results with the 1998-1999, 2004, and 2009-2011 in the Philippine Sea NPAL experimental data.

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE