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GSA Memoirs
Propagation of Sound in the Ocean
Author(s)
Geological Society of America

Volume
27
Copyright:
© 1948 Geological Society of America
Geological Society of America
ISBN print:
9780813710273
Publication date:
January 01, 1948
Experiments are described to demonstrate a new method of sonic signalling at extremely long ranges in the oceans, utilizing the natural sound channel. Signals were made by causing a 4-lb. charge of TNT to explode at about 4000-foot depth.
These signals have the following qualities:
(1) Extremely long-range transmission (probably 10,000 miles).
(2) Signal is positively identifiable.
(3) Abrupt termination of the signal allows the arrival time to be read with an accuracy better than 0.05 second. This permits location of the source to within a mile, if the signal is received at three suitably located stations.
(4) The relation...
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Index Terms/Descriptors
- absorption
- acoustical methods
- acoustical waves
- arrival time
- Atlantic Ocean
- Bahamas
- bathymetry
- calibration
- Caribbean region
- deep-water environment
- elastic waves
- experimental studies
- explosions
- extrapolation
- geophysical methods
- hydrographs
- hydrophones
- islands
- marine methods
- networks
- ocean basins
- ocean bottom hydrophones
- ocean floors
- seasonal variations
- shoals
- traveltime
- velocity
- West Indies
- Eleuthera
Latitude & Longitude
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