Proceedings of the Workshop on Seismic Propagation in Shallow Water Held on 6-7 July 1978 at Office of Naval Research, Arlington, Virginia.
Abstract
This workshop considered seismic propagation in the continental margin (e.g., water depths of 200m or less). When an acoustic signal is radiated into water, a certain amount of the energy is coupled with the bottom and may be measurable as a seismic signal. There are indications that a horizontally oriented geophone may provide better signal to noise ratio in shallow water than a hydrophone measuring the same signal. The workshop was not technology oriented but was designed to explore some of the physical processes involved with seismic propagation. The conventional acoustic methods for detection of submarines at long range lose their attractiveness in shallow water where acoustic energy is rapidly attenuated through interactions with the surface and bottom and its coherence is similarly lost. A substantial part of the world's oceans can be classified as shallow water, including such important areas as the North Sea, East Coast of the Americas, etc.). One possible alternative to acoustic surveillance may be seismic surveillance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 07, 1978
- Accession Number
- ADA063163
Entities
Organizations
- Office of Naval Research