Depth dependence and intra-tidal variability of Suspended Particulate Matter transport in the East Anglian plume

Tiessen, M.C.H.; Eleveld, M.A.; Nauw, J.J.; Nechad, B.; Gerkema, T.

doi:/10.1016/j.seares.2017.03.008

Depth dependence and intra-tidal variability of Suspended Particulate Matter transport in the East Anglian plume

Tiessen, M.C.H.; Eleveld, M.A.; Nauw, J.J.; Nechad, B.; Gerkema, T. (2017). Depth dependence and intra-tidal variability of Suspended Particulate Matter transport in the East Anglian plume. J. Sea Res. 127: 2-11. https://dx.doi.org/10.1016/j.seares.2017.03.008

In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer

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Author keywords

SPM; Transports; North Sea; Tidal currents; Remote sensing

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Tiessen, M.C.H., meer Eleveld, M.A. Nauw, J.J., meer	Nechad, B., meer Gerkema, T., meer

Abstract

In order to derive an estimate of the net transport of Suspended Particulate Matter (SPM) in the East Anglian plume, we carried out a measurement campaign along two cross-sections within the plume. Selected stations were visited repeatedly to resolve the tidal cycle. By measuring profiles of currents and optical backscatter (from which SPM concentrations were estimated, via samples), both gross and net transports can be calculated, as well as intra-tidal and vertical variability. For the centre of the plume, we find a net transport of about 13millionkg over a tidal cycle. A comparison is made with maps of near-surface concentration of SPM from optical remote sensing. Some discrepancy is found in the values (of about a factor of two), but the spatial pattern agrees qualitatively.

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