Shelf Break Acoustics - NESBA and SCS Data Analysis
Abstract
Approved for Public ReleaseUnderwater sound propagation in the ocean can be affected by a number of environmental factors, including physical oceanography (PO), marine geology (GEO) and biology (BIO). The primary objective of the proposed work is to investigate th e physics link connecting acoustics and these environmental factors, and also to verify theoretical predictions and numerical models by comparing them to field work experiment data. The ocean processes of particular interest include shelf-break fronts, thermohalin e intrusions, surface mixed layers, and internal waves. As for marine geological features and biological factors, the considerations include submarine canyons, seabed properties, and fish schooling and shoaling. Data collected in the shelf break areas of the New E ngland shelf and northern South China Sea will be studied. These two experimental sites were selected for strategic and tactical im portance to the Navy for anti-submarine warfare (ASW), and also for scientific significance to advance underwater acoustic detection and localization technology. The scientific objectives in this study include: (1) Investigation of sound propagation effects due to PO, GEO and BIO features and processes. (2) Understanding of scattering effects on seafloor and sea surface boundaries(3) Sensi tivity analysis of competing environmental factors on sound propagation. (4) Verifying theoretical predictions and numerical modeli ng with field experiment data.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 22, 2021
- Source ID
- N000142112959
Entities
People
- Ying-Tsong Lin
Organizations
- Office of Naval Research
- United States Navy
- Woods Hole Oceanographic Institution