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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Tidal and residual flows in the western Dutch Wadden Sea: II. An analytical model to study the constant flow between connected tidal basins Ridderinkhof, H. (1988). Tidal and residual flows in the western Dutch Wadden Sea: II. An analytical model to study the constant flow between connected tidal basins. Neth. J. Sea Res. 22(3): 185-198. https://dx.doi.org/10.1016/0077-7579(88)90022-1 In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, meer Is gerelateerd aan: Ridderinkhof, H. (1990). Tidal and residual flows in the western Dutch Wadden Sea: II. An analytical model to study the constant flow between connected tidal basins, in: Ridderinkhof, H. Residual currents and mixing in the Wadden Sea = Reststromen en menging in de Waddenzee. pp. 29-42, meer

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Marien/Kust

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Ridderinkhof, H., meer

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Abstract

In a one-dimensional analytical model the origin of constant flows between connected tidal basins, as well as the origin of the associated residual levels, is examined. Linearized shallow water equations are used to describe the propagation and damping of a tidal wave in schematized (uniform width and depth) connected basins. Analytical expressions are derived for the tidal stress terms, including the contribution of the non-linear bottom-friction term, which serve as the forcing functions in the equations for the mean field. It is shown that in a first approximation the residual levels in the tidal inlets, which give boundary conditions for the tidally-averaged equations, are dependent on the tidal velocities in the inlet because of a "Bernoulli effect". The model shows that in general differences between the fluctuating water levels at the inlets influence the residual flow more than morphological differences between two connected basins. The tidally-driven mass transport in the western Dutch Wadden Sea, directed southwards from the Vlie basin towards the Marsdiep basin, can be explained from the larger water-level amplitude at the inlet of the Vlie basin.

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