Subsurface Ducts and Mid-Frequency Acoustic Propagation Fluctuations on the Washington Shelf
Abstract
We propose to carry out an integrated oceanographic and mid-frequency acoustic observations and modeling investigation on the Washington shelf with a focus on improved predictions of subsurface ducts and internal waves and quantifying their acoustic impact including propagation predictions, variability, and seafloor interaction. Specifically, we will measure and model: (1) subsurface duct formation mechanisms, persistence, and extent offshore along with internal wave activity on the shelf, (2) variability of mid-frequency3D acoustic propagation on the shelf upslope and along-shelf directions, and (3) seafloor sub-bottom geoacoustic characteristics and its influence on acoustic propagation and scattering due to a temporal and range-dependent water column sound speed structure.Thisabstract is publicly releasable.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 26, 2024
- Source ID
- N000142512013
Entities
People
- William Hodgkiss
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego