Suspended sediment dynamics above submerged compound sand waves observed during a tidal cycle

Hennings, Ingo and Herbers, Dagmar (2016) Suspended sediment dynamics above submerged compound sand waves observed during a tidal cycle MARID 2016. Fifth International Conference on Marine and River Dune Dynamics, Caernarfon, United Kingdom, 4-6 April 2016. Bangor University and SHOM, Bangor, North Wales, UK, pp. 81-84. ISBN 978-2-11-128417-3

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Abstract

Detailed Acoustic Doppler Current Profiler (ADCP) data of the three-dimensional current-field, echo intensity, modulation of suspended sediment concentration (SSC), and related water level and wind velocity have been analyzed as a function of water depth over asymmetric submerged compound sand waves during a tidal cycle in the Lister Tief of the German Bight in the North Sea. Signatures of vertical current component, echo intensity and calculated SSC modulation in the water column depend strongly on wind and horizontal current speed as well as on wind and horizontal current direction, respectively. Bursts of vertical current component and echo intensity are triggered by the sand waves itself and also by superimposed megaripples due to current/wave interaction.

Document Type: Book chapter
Keywords: ocean color, Acoustic Doppler Current Profiler, echo intensity, suspended sediment concentration, asymmetric compound sand wave, RV Ludwig Prandtl
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Related URLs:
Projects: OROMA
Date Deposited: 24 May 2016 08:27
Last Modified: 24 May 2016 09:02
URI: http://eprints.uni-kiel.de/id/eprint/32920

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