Investigation of Parametric Acoustic Response of a Fluctuating Ocean
Abstract
The long-term goals are: (1) to take advantage of the ever-changing ocean environment's effects in order to provide a more complete understanding of long-range acoustic pulse propagation including extracting parameters characterizing the ocean environment, for example, by linking them to range scales of temporal decorrelations in arriving signals, (2) understanding the extent of fundamental limitations on ray-based acoustic tomography; of particular interest is the breakdown range of semiclassical methods, and (3) to address important basic physics issues that arise in the ocean problem, but within a more general context. There are two primary scientific objectives of this work: (1) to begin developing a geometric acoustics theory that addresses parametrically varying ocean environments in the presence of ray chaos, determines what information survives under such conditions, and determines how to extract it, and (2) to determine the sensitivity of acoustic wavefields to relevant ocean environment parameters thereby connecting the scale of changes in the ocean to range scales of wavefield correlation decay.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1998
- Accession Number
- ADA550835
Entities
People
- Steven Tomsovic
Organizations
- Washington State University