Basin Acoustic Seamount Scattering Experiment (BASSEX) Data Analysis and Modeling
Abstract
LONG-TERM GOALS. In this program we are focusing on the science issues associated with long range ocean acoustic propagation in range-dependent environments. The primary goal is to understand the physics of the acoustic propagation in complex environments. Three specific propagation regimes are the focus of this work: 1.) seamount scattering, 2.) open ocean propagation and 3.) downslope propagation in a strongly range-dependent environment. The long-term goal is understand scattering off of seamounts and island slopes and to develop algorithms for modeling the acoustic field in these severely range dependent (and azimuthally anisotropic) environments. In the 2004 BASSEX experiment, with Chief Scientist Professor Arthur Baggeroer (MIT) and Co- Chief Scientist Dr. Kevin Heaney (OASIS), several specific areas of acoustic propagation where addressed. During the test acoustic transmissions from sources used in the SPICEX and LOAPEX experiments (PI: Dr. Peter Worcester, SIO and Dr. Jim Mercer, APL-UW), were recorded in the central Pacific using the Office of Naval Research Five Octave Research Array. One week of this test was devoted to seamount scattering, with many receptions taken in various scattering geometries around the Kermit-Roosevelt seamount complex. A second week was spent in transit recording open ocean transmissions at ranges of 250km through 2000 km. The final week was spent off the coast of Kauai, recording the NPAL Kauai source at various ranges and bearings.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2006
- Accession Number
- ADA630876
Entities
People
- Kevin D. Heaney