Executive Summary
This thesis models the Monterey Bay Tomography Experiment (MBTE) conducted in December 1988, which aimed to test the feasibility of tomographic analysis in a complex bathymetry region. It demonstrates that a three-dimensional acoustic model, HARPO, combined with high-resolution bathymetry and sound speed profiles, can accurately determine eigenrays. The modeled arrival times successfully matched measured signal arrivals, enabling reliable identification of propagation paths for inverse techniques.
Why It Matters
This document is crucial for defense analysts interested in underwater acoustics, anti-submarine warfare (ASW), and oceanographic intelligence, as it details advanced acoustic modeling techniques for complex maritime environments. Understanding acoustic propagation in such areas is vital for naval operations, sensor deployment, and target detection.
Key Takeaways
- A 3D acoustic raytracing program (HARPO) is essential for accurate eigenray determination in complex bathymetry like Monterey Bay.
- High-resolution bathymetry and sound speed profiles are critical inputs for successful acoustic modeling in varied ocean environments.
- The study successfully matched modeled acoustic arrival times with measured data, validating the approach for future tomographic analysis in challenging coastal regions.
Strategic Relevance
Accurate acoustic modeling in complex coastal and deep-water environments is strategically important for naval operations, including submarine detection, anti-submarine warfare, and the deployment of underwater surveillance systems. This research enhances the understanding of sound propagation, which is fundamental to maritime domain awareness and intelligence gathering.