MEASUREMENTS OF TRANSMISSION FLUCTUATIONS AT THREE RANGES FOR REFRACTED PATHS THROUGH THE DEEP OCEAN.

Harry A Deferrari, R. I. Davis, H. Nguygen, R. F. Tusting, N. J. Williams

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Fluctuations of acoustic transmission were measured for resolved refracted-refracted ray paths at three long ranges in the deep ocean (258, 410, 560 km). A moored broadband source with center frequency of 460 Hz transmitted continuously for a period of several days from each range. Received signals were processed to give time histories of complex pulse response. Fluctuation statistics are computed for the carrier line, the combined multipath signal, and time gated arrivals associated with predicted paths. Refracted arrivals are identified by ray models, and statistics are computed for resolved paths, unresolved paths, unresolved doublets of upgoing and downgoing rays, and the combined multipath. A second mooring was used to measure temperature fluctuations associated with internal waves and for estimating the magnitude and vertical coherence of soundspeed fluctuations during the acoustic experiments. The authors report statistics of fluctuations and compare measurement with predictions.

Original languageEnglish (US)
Pages (from-to)1448-1463
Number of pages16
JournalJournal of the Acoustical Society of America
Volume74
Issue number5
StatePublished - Nov 1983

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oceans
statistics
arrivals
rays
refracted waves
mooring
internal waves
acoustics
estimating
Ocean
Fluctuations
histories
broadband
predictions
pulses
Ray
Statistics
temperature
Acoustics

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Deferrari, H. A., Davis, R. I., Nguygen, H., Tusting, R. F., & Williams, N. J. (1983). MEASUREMENTS OF TRANSMISSION FLUCTUATIONS AT THREE RANGES FOR REFRACTED PATHS THROUGH THE DEEP OCEAN. Journal of the Acoustical Society of America, 74(5), 1448-1463.

MEASUREMENTS OF TRANSMISSION FLUCTUATIONS AT THREE RANGES FOR REFRACTED PATHS THROUGH THE DEEP OCEAN. / Deferrari, Harry A; Davis, R. I.; Nguygen, H.; Tusting, R. F.; Williams, N. J.

In: Journal of the Acoustical Society of America, Vol. 74, No. 5, 11.1983, p. 1448-1463.

Research output: Contribution to journalArticle

Deferrari, HA, Davis, RI, Nguygen, H, Tusting, RF & Williams, NJ 1983, 'MEASUREMENTS OF TRANSMISSION FLUCTUATIONS AT THREE RANGES FOR REFRACTED PATHS THROUGH THE DEEP OCEAN.', Journal of the Acoustical Society of America, vol. 74, no. 5, pp. 1448-1463.
Deferrari, Harry A ; Davis, R. I. ; Nguygen, H. ; Tusting, R. F. ; Williams, N. J. / MEASUREMENTS OF TRANSMISSION FLUCTUATIONS AT THREE RANGES FOR REFRACTED PATHS THROUGH THE DEEP OCEAN. In: Journal of the Acoustical Society of America. 1983 ; Vol. 74, No. 5. pp. 1448-1463.
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