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

Data sets

German Bight surface drifter data from Heincke cruise HE 445, 2015 R. Carrasco and J. Horstmann

coastDat-2 Hydrodynamic Model TRIM-NP Principal Component Analysis Residual Currents. World Data Center for Climate U. Callies

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.