Seabed geoacoustic mapping from a commercial multibeam sonar
Abstract
The impact of seabed geoacoustic properties on acoustic energy propagating in the ocean environment is significant. They often control the frequency dependent transfer function between source and receiver; in addition they are often the controlling factor for energy losses. While much has been learned over the last decades, the seabed and sub-seabed geoacoustic properties remain largely unknown and poorly understood. Here, we propose a major step to sensing seabed geoacoustic properties (compressional velocity, bulk density, and compressional attenuation) using a commercial sonar system. The potential is significant, inasmuch as twodimensional (depth below seabed and track direction) geoacoustic properties can be sensed at spatial scales heretofore largely inaccessible. Approved for Public Release.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 06, 2021
- Source ID
- N000142112191
Entities
People
- Martin Siderius
Organizations
- Office of Naval Research
- Portland State University
- United States Navy