Three-Dimensional Acoustic Propagation in the Arctic
Abstract
Proposed is a three-year project concerning the analysis of acoustic signals broadcast by tomographic sources moored in the Arctic Basin recorded on an L-array located on the Beaufort shelf. The analysis is focused on studying three-dimensional (3D) propagation induced by the rough ice interface in the Arctic Basin. Characterizing the nature of the 3D propagation, or at least bounding its magnitude, is necessary to assess target bearing accuracy and to interpret acoustic tomography estimates in the Arctic environment. Additionally, the signals received on the L-array are expected to be characterized by fluctuations caused by variability in ocean properties. Examination of acoustic parameters including horizontal wavenumbers and modal group speed are proposed to understand these fluctuations and infer sound speed profiles.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512119
Entities
People
- Megan S. Ballard
Organizations
- Office of Naval Research
- United States Navy
- University of Texas at Austin