The University of Southampton
University of Southampton Institutional Repository

In situ flume measurements of resuspension in the North Sea

Thompson, C.E.L., Couceiro, F., Fones, G.R., Helsby, R., Amos, C.L., Black, K., Parker, E.R., Greenwood, N., Statham, P.J. and Kelly-Gerreyn, B.A. (2011) In situ flume measurements of resuspension in the North Sea Estuarine, Coastal and Shelf Science, 94, (1), pp. 77-88. (doi:10.1016/j.ecss.2011.05.026).

Record type: Article


The in situ annular flume, Voyager II, was deployed at three sites in the North Sea in order to investigate resuspension events, to determine the physical characteristics of the seabed, to determine the threshold of resuspension of the bed and to quantify erosion rates and erosion depths. These are the first controlled, in situ flume experiments to study resuspension in the North Sea, and were combined with long-term measurements of waves and currents. Resuspension experiments were undertaken at two muddy, and one sandy site: north of the Dogger Bank (DG: water depths not, vert, similar80 m, very fine, poorly sorted, very fine-skewed sediment experiencing seasonal thermal stratification of the water column along with oxygen depletion); the Oyster Grounds (OG: not, vert, similar40 m, similar bed properties, year round water column thermal stratification, Atlantic forcing); and in the Sean Gas Field (SGF: not, vert, similar20 m, moderately sorted, very coarse-skewed sand, and well mixed water column). The erosion thresholds of the bed were found to be 0.66–1.04 Pa (DG) and 0.91–1.27 Pa (OG), with corresponding erosion depths of 0.1–0.15 mm and 0.02–0.06 mm throughout the experiments.

Evaluation of a year of current velocities from 2007 indicated that at OG, resuspension of the consolidated bed was limited to on average not, vert, similar8% of the time as a result of tidal forcing alone for short (<30 min) durations, but would potentially increase during the winter as a result of wave influences. At DG, under similar conditions this would increase to 13%, and in the SGF, wave-induced resuspension events occurred throughout the year, with the potential exceedance of the threshold for suspension greater than 50% in January and March.

Resuspension of bed material and erosion rates were closely related to applied bed shear stresses, and eroded depths were significantly correlated with the physical properties of the bed. Therefore, while complex variations in biogeophysical factors affected the critical threshold of erosion, once exceeded, erosion rates were related to the nature of the sediment.

Full text not available from this repository.

More information

Published date: 30 July 2011
Keywords: sediment, resuspension, North Sea, annular flume
Organisations: Ocean and Earth Science, Marine Biogeochemistry, National Oceanography Centre,Southampton


Local EPrints ID: 194859
ISSN: 0272-7714
PURE UUID: e0b832f0-8e8a-42ff-8698-1bcec2334e84

Catalogue record

Date deposited: 11 Aug 2011 13:55
Last modified: 18 Jul 2017 11:26

Export record



Author: C.E.L. Thompson
Author: F. Couceiro
Author: G.R. Fones
Author: R. Helsby
Author: C.L. Amos
Author: K. Black
Author: E.R. Parker
Author: N. Greenwood
Author: P.J. Statham
Author: B.A. Kelly-Gerreyn

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.