The Effect of the Mid-Atlantic Ridge on Long Range Sound Propagation.
Abstract
This document contains the oral and visual presentation given at the 101st Meeting of the Acoustical Society of America, 20 May 1981, Ottawa, Canada. Previous long range acoustic experiments show that the Mid-Atlantic Ridge, a major topographic feature rising to the deep sound channel axis can have a significant effect on SOFAR propagation. (R. J. Urick, J. Acoust. Soc. Am. 35(9), 1413, 1963.) In order to quantify this effect, data have been analyzed from a recent SOFAR experiment that deployed SUS charges during several transits across the Ridge. The signals were received on a hydrophone located near Bermuda, a distance of approximately 2500 km. These results are comapared with data from Atlantic seamounts of similar height and ridges in other oceans. (K. M. Guthrie, J. Acoust. Soc. Am., 68(S1), S52(A), 1980.) The enhancement or shadowing of SOFAR propagation is presented as a function of source depth and frequency for various geometries. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1981
- Accession Number
- ADA105747
Entities
People
- D. G. Browning
- P. D. Koenigs
- R. F. La Plante
Organizations
- Naval Underwater Systems Center