Extensions of the Parabolic Equation Model for High-Angle Bottom-Interacting Paths,
Abstract
Hence the specific problem of interest is the propagation of high angles over large distances where the energy is refracted in the ocean-bottom sediments (rather than reflected from a hard interface). The principal difficulty with PE in such geometries is that a steep angle effectively propagates with the period of a shallower angle since the horizontal component of its phase velocity is less than it should be. Hence the ray period, or cycle distance, is too large. For water-borne paths this problem was largely removed by CMOD. The relaxation of the CMOD convergence-zone constraint permits certain liberties to be taken with the sound-speed profile in the bottom which could not be considered in the water column.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1977
- Accession Number
- ADA052890
Entities
People
- C. W. Spofford
- L. B. Dozier