North Pacific Acoustic Laboratory: Analysis of Shadow Zone Arrivals and Acoustic Propagation in Numerical Ocean Models
Abstract
My long-term goal is a complete and thorough understanding of the properties of acoustic pulses sent over megameter scales. In particular, I want to understand the forward problem for calculating travel times of the early ray arrivals in long-range acoustic transmissions and to understand the sampling associated with those arrivals. This work aims to determine the extent to which existing models of ocean variability can be used for the study of long-range acoustics. To accomplish this goal, new tools are to be developed to manage the often large size of the model output, to extract and construct the relevant acoustic properties (e.g., full-depth sections of sound speed) from the model output, and to make the acoustic calculations. Another objective is to examine data obtained on deep hydrophone arrays during the SPICEX experiment to establish general properties of receptions that occur in the shadow zone.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2006
- Accession Number
- ADA612577
Entities
People
- Brian D. Dushaw
Organizations
- University of Washington