Continued Studies of Complex Multiphase Ocean-Bottom Materials and Associated Effects on Shallow Water Acoustic Propagation
Abstract
Approved for Public ReleaseP-5002AbstractPage 1 of 1ABSTRACTThe first long-term scientific objective of this project is to increaseour understanding of sound propagation in ocean bottom sediments, including water-saturated sands and muds, sediments that contain a range of grain sizes (such as those present at the site of the Seabed Characterization Experiment), gas-bearing sediments and sediments which support seagrass. The second objective is to improve our understanding of how these sediment characteristics effect sound propagation in shallow water ocean waveguides. Both these objectives in turn benefit sonar operation in shallow water, buried object detection and acoustic communications in shallow water. The goals will be met using the following approaches: The PI will continue to serve as co-chief scientist for ONRs Seabed Characterization Experiment (SBCEX17 and SBCEX21+), along with David Knobles to conduct at sea experiments on this topic. We will continue performing widebandlaboratory and in situ measurements of multiphase ocean-bottom materials and compare these measurements to forward physical models that predict acoustic properties from material properties, and will also compare our measurements to inference results of our own and from the community.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 06, 2021
- Source ID
- N000142112205
Entities
People
- Preston S Wilson
Organizations
- Office of Naval Research
- United States Navy
- University of Texas at Austin