Seismo-Acoustics in Laterally Varying Media
Abstract
Many wave propagation problems in the geosciences involve a nearly stratified waveguide. When lateral variations in the medium (ocean, solid Earth, or atmosphere) are sufficiently gradual, outgoing energy dominates backscattered energy, and solutions can be obtained using an approximate wave equation that only accounts for outgoing waves. This approach, which is known as the parabolic equation method, often improves efficiency by several orders of magnitude with no significant loss in accuracy. For example, outgoing solutions can be obtained in minutes for global-scale ocean acoustics problems that would be out of the question to solve in terms of the full-wave equation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2006
- Accession Number
- ADA522694
Entities
People
- D. A. Outing
- D. C. Calvo
- E. T. Kusel
- H. J. Simpson
- J. M. Collis
- Michael D. Collins
- R. J. Soukup
- William L. Siegmann
Organizations
- United States Naval Research Laboratory