Accession Number:

ADA616453

Title:

Phenomenology and Statistics of the Upper Slope sand Dunes in the Northeastern South China Sea

Descriptive Note:

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY

Personal Author(s):

• Chiu, Ching-Sang
• Reeder, D. B.

Report Date:

2014-09-30

Pagination or Media Count:

10.0

Abstract:

The long-term research goals are 1 the characterization, understanding, and prediction of the statistics mean, variance and coherence of low-frequency acoustic signals and ambient noise in the littoral zone. The signal statistics are primarily influenced by the ocean variability and bottom properties. The noise statistics are influenced by atmospheric forcing and shipping in addition to the ocean and bottom variability 2 the development and improvement of inverse techniques for measuring the dynamics and kinematics of meso- and finer-scale sound speed structure and ocean currents in coastal regions 3 the understanding of three-dimensional sound propagation physics including horizontal refraction and azimuthal coupling and the quantification of the importance of these complex physics in the prediction of sound signals transmitted over highly variable littoral regions. The primary objectives of this three-year FY12-14 research project are In collaboration with Taiwanese and US scientists, an ONR-sponsored, multi-year, interdisciplinary, international field program was launched to characterize the large sand dunes on the upper slope of the northeastern NE South China Sea SCS, associated physical processes, and their impact on acoustic signal propagation and reverberation.

Descriptors:

• *DUNES
• ACOUSTIC SIGNALS
• AMBIENT NOISE
• LOW FREQUENCY
• OCEANS
• PREDICTIONS
• STATISTICS
• STRUCTURAL PROPERTIES

Subject Categories:

• Geography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE