Articles | Volume 13, issue 5
Research article
26 Sep 2017
Research article |  | 26 Sep 2017

Surface drifters in the German Bight: model validation considering windage and Stokes drift

Ulrich Callies, Nikolaus Groll, Jochen Horstmann, Hartmut Kapitza, Holger Klein, Silvia Maßmann, and Fabian Schwichtenberg

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Cited articles

Ardhuin, F., Marié, L., Rascle, N., Forget, P., and Roland, A.: Observation and estimation of Lagrangian, Stokes and Eulerian currents induced by wind and waves at the sea surface, J. Phys. Oceanogr., 39, 2820–2838, 2009.
Barron, C. N., Smedstad, L. F., Dastugue, J. M., and Smedstad, O. M.: Evaluation of ocean models using observed and simulated drifter trajectories: Impact of sea surface height on synthetic profiles for data assimilation, J. Geophys. Res., 112, C07019,, 2007.
Beron-Vera, F. J. and LaCasce, J. H.: Statistics of simulated and observed pair separations in the Gulf of Mexico, J. Phys. Oceanogr., 46, 2183–2199,, 2016.
Brandt, G., Wehrmann, A., and Wirtz, K. W.: Rapid invasion of Crassostrea gigas into the German Wadden Sea dominated by larval supply, J. Sea Res., 59, 279–296, 2008.
Breivik, Ø. and Allen, A. A.: An operational search and rescue model for the Norwegian Sea and the North Sea, J. Marine Syst., 69, 99–113, 2008.
Short summary
Six surface drifters were tracked in the inner German Bight for between 9 and 54 days. Corresponding simulations were conducted based on currents from two hydrodynamic models. Effects of including either a direct wind drag or simulated Stokes drift were similar during most of the time. Results suggest that main sources of simulation errors were inaccurate Eulerian currents and lacking representation of sub-grid-scale processes. Substantial model errors often occurred under low wind conditions.