NEAR-BOTTOM CURRENT MEASURED BY ACOUSTIC SENSORS
No. 16 (1978), Conference Proceedings
No. 16 (1978)

NEAR-BOTTOM CURRENT MEASURED BY ACOUSTIC SENSORS

Conference Proceedings
https://doi.org/10.9753/icce.v16.50
Published 1978-01-29
K.A. Selanger
River and Harbour Laboratory
T. Carstens
River and Harbour Laboratory
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Keywords

current
bottom current
acoustic sensor

How to Cite

Selanger, K., & Carstens, T. (1978). NEAR-BOTTOM CURRENT MEASURED BY ACOUSTIC SENSORS. Coastal Engineering Proceedings, 1(16), 50. https://doi.org/10.9753/icce.v16.50
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Abstract

A vertical current profile has been measured with three acoustic meters 60 cm, 100 cm and 200 cm from the sea bottom. The depth at the measuring site was 84 metres. The profile is found to depend on the time scale of the water particle motion. An Ekman-like turning of the current is also observed, and the thickness of friction layers is estimated. Comparison of the current data with wave measurements indicates that the vertical transfer of surface wave energy is 30-50 per cent less than first order wave theory prescribes.
https://doi.org/10.9753/icce.v16.50
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