The Importance of Under-Keel Sound Velocity Sensor in Measuring Water Depth with Multibeam Echosounder

Artur Grządziel
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Artur Grządziel: Department of Navigation and Hydrography, Faculty of Navigation and Naval Weapons, Polish Naval Academy, 81-127 Gdynia, Poland

Energies, 2021, vol. 14, issue 17, 1-16

Abstract: The basic and most commonly used application of modern multibeam echosounders (MBES) is the bathymetric survey. Surface sound velocity errors introduce errors on beam steering angles and consequently errors in depth and position values. Due to systematic malfunction and troubleshooting of the sound velocity sensor (SVS) on board Polish Navy hydrographic ship Arctowski , attempts to solve the problem were made. All the inspections and cleaning of the sensor were performed with the use of divers or while staying in the shipyard. Diving work did not always bring the expected results and periodic ship docking was quite expensive. The article shows the importance of the SVS sensor in bathymetric measurements using multibeam echosounder. Selected problems of the sensor operation and temporary solutions were presented. The paper provides a description of practical solutions implemented aboard the navy ship Arctowski . The idea and implementation were the result of the author’s experience gained during 18 years of service on board that ship.

Keywords: water depth measurements; sound velocity sensor; multibeam echosounder (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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