3-D Sound Propagation and Acoustic Inversions in Shallow Water Oceans
Abstract
Underwater sound propagation in the continental shelf is complicated due to many threedimensional (3-D) oceanographic and marine geologic features, such as shelfbreak fronts, nonlinear internal gravity waves and topographic variability. The long-term goals of this project are targeted on understanding the 3-D sound propagation effects caused by these environmental factors, and also on applying the 3-D sound propagation physics to acoustic inversions. A verity of physical oceanographic processes and marine geological features can cause horizontal inhomogeneity of the medium properties in the ocean. Thus, horizontal refraction of sound can occur and produce significant 3-D acoustic propagation effects. One of the research objectives of this project is to develop efficient and accurate 3-D models (both theoretical and numerical models) for studying underwater sound propagation in the ocean. Another research objective is to develop acoustic inverse algorithms for source localization and bottom geoacoustic inversions. This work requires a solid understanding on sound propagation physics, and it is closely connected to the first topic.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 19, 2012
- Accession Number
- ADA569875
Entities
People
- Ying-Tsong Lin
Organizations
- Woods Hole Oceanographic Institution