Hydroacoustic equipment of autonomous underwater profilers

  • A. G. Ostrovskii Shirshov Institute of Oceanology, Russian Academy of Sciences
DOI 10.29006/1564-2291.JOR-2018.46(2).6
Keywords autonomous underwater profilers, acoustic Doppler current meter, hydroacoustic beacon, sound backscaterr, hydroacoustic modem

Abstract

Autonomous underwater profilers are designed for measurements of vertical profiles of ocean currents and marine environmental parameters. Such device moves along a vertically stretched cable at the buoy stations. Generally, a profiler comprises convenient platform for mounting of hydroacoustic equipment. A suit of sensors installed at the profiler carries out the measurements in the water column from the near-surface layer to the bottom allowing a researcher to obtain uniform data with the same accuracy. During the survey, the device usually maintains a stable orientation relative to the direction of flow, which is important for acoustic Doppler measurements of the speed and direction of ocean currents. This paper deals with applications of the moored automatic mobile profiler Aqualog for underwater communication and data transmission, acoustic measurements of the flow velocity and small-scale inhomogeneities.

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Published
2018-11-18
Issue
Vol 46 No 2 (2018): Journal of Oceanological Research
Section
Ocean acoustics

Transfer of copyrights occurs on the basis of a license agreement between the Author and Shirshov Institute of Oceanology, RAS

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