Understanding the Complexities and Dynamic Nature of Fine-Grained Ocean-Bottom Sediments and Their Impact on Shallow Water Acoustic Propagation
Abstract
Abstract:The first long-term scientific objective of this project is to increase our understanding of sound propagation in sediments that contain a range of grain sizes (such as those present at the site of the Seabed Characterization Experiment), under the influence of dynamic ocean processes, such as temperature, salinity and sediment transport, and infauna. The second objective is to improve our understanding of how these dynamic sediment characteristics effect sound propagation, and the use of inference techniques forsediment classification, in shallow water ocean waveguides. Both these objectives in turn benefit sonar operation in shallow water,buried object detection, acoustic communications in shallow water. This will be achieved via the following research thrusts: 1) Wideband laboratory and in situ measurements of complex ocean-bottom materials, both reconstituted and naturally-collected. 2) The project will undertake the continued analysis of SBCEX data collected in the previous field campaigns. 3) The PI will continue to perform co-chief-scientist activities in support of SBCEX. 4) The following does not fall under the umbrella of the current title, but is connected to past work. We will continue to analyze the data collected from the acoustic arrays the PI deployed at the Turner/Hubbard glacier complex seeking further understanding of the acoustics of glacial fjords.#Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 09, 2024
- Source ID
- N000142412518
Entities
People
- Preston S Wilson
Organizations
- Office of Naval Research
- United States Navy
- University of Texas at Austin