Sonar research conducted during the period 1 October - 31 December 1961
Citable URI
https://hdl.handle.net/1912/25171DOI
10.1575/1912/25171Keyword
Sonar; Underwater acoustics; Submarine geologyAbstract
Research at sea during this three month period, supported by Contract NObsr-72521, was carried out mostly during the latter portion of the CHAIN Cruise 21 to the eastern Mediterranean. Near-surface sound transmission runs were made with the aid of two foreign ships in the eastern Mediterranean and Tyrrhenian Sea. Sound velocity measurements were made there also. Reverberation and back-scatter measurements using half pound explosives as sound sources were recorded on magnetic tape for future analysis. Further, at several places during the cruise acoustic reflectivity of the sea-floor was measured by means of a semi-automatic system employing the Precision Graphic Recorder and the Edo UQN Echo Sounder. Research other than that on CHAIN Cruise 21, included ambient noise studies of recorded signals from finback whales, and analysis of data from
previous observations at sea.
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Suggested Citation
Woods Hole Oceanographic Institution, /. (1962). Sonar research conducted during the period 1 October - 31 December 1961. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/25171Related items
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