Print Email Facebook Twitter Cross-shore stratified tidal flow seaward of a mega-nourishment Title Cross-shore stratified tidal flow seaward of a mega-nourishment Author Meirelles, Saulo (TU Delft Coastal Engineering) Henriquez, M. (TU Delft Coastal Engineering) Reniers, A.J.H.M. (TU Delft Environmental Fluid Mechanics) Luijendijk, Arjen (TU Delft Coastal Engineering; Deltares) Pietrzak, J.D. (TU Delft Environmental Fluid Mechanics) Horner-Devine, Alexander R. (University of Washington) Souza, Alejandro J. (National Oceanography Center) Stive, M.J.F. (TU Delft Coastal Engineering) Date 2018-01-05 Abstract The Sand Engine is a 21.5 million m3 experimental mega-nourishment project that was built in 2011 along the Dutch coast. This intervention created a discontinuity in the previous straight sandy coastline, altering the local hydrodynamics in a region that is influenced by the buoyant plume generated by the Rhine River. This work investigates the response of the cross-shore stratified tidal flow to the coastal protrusion created by the Sand Engine emplacement by using a 13 h velocity and density survey. Observations document the development of strong baroclinic-induced cross-shore exchange currents dictated by the intrusion of the river plume fronts as well as the classic tidal straining which are found to extend further into the nearshore (from 12 to 6m depth), otherwise believed to be a mixed zone. Estimates of the centrifugal acceleration directly after construction of the Sand Engine showed that the curvature effects were approximately 2 times stronger, suggesting that the Sand Engine might have played a role in controlling the cross-shore exchange currents during the first three years after the completion of the nourishment. Presently, the curvature effects are minute. Subject Baroclinic forcingCentrifugal accelerationCross-shore exchange currentsSand Engine To reference this document use: http://resolver.tudelft.nl/uuid:549794c9-ff18-4bff-b8a5-6c41eaed5f21 DOI https://doi.org/10.1016/j.ecss.2017.10.013 Embargo date 2019-12-22 ISSN 0272-7714 Source Estuarine, Coastal and Shelf Science, 200, 59-70 Part of collection Institutional Repository Document type journal article Rights © 2018 Saulo Meirelles, M. Henriquez, A.J.H.M. Reniers, Arjen Luijendijk, J.D. Pietrzak, Alexander R. Horner-Devine, Alejandro J. Souza, M.J.F. Stive Files PDF MeirellesEtAl2017_Stratif ... low_2_.pdf 3.64 MB Close viewer /islandora/object/uuid:549794c9-ff18-4bff-b8a5-6c41eaed5f21/datastream/OBJ/view