Tidal wave characteristics in a multi ebb-flood channel Estuary
Nguyen, A.D.; Savenije, H.H.G.; Wang, Z.B. (2007). Tidal wave characteristics in a multi ebb-flood channel Estuary, in: Özhan, E. (Ed.) Proceedings of the Eight International Conference on the Mediterranean Coastal Environment, MEDCOAST 07, 13-17 November 2007, Alexandria, Egypt, 2 Volumes. pp. 1283-1294
This paper aims at: (i) Exploring the characteristics of the tidal wave propagation in the Scheldt Estuary, which is a multi- (ebb and flood) channel estuary located in the Netherlands and Belgium; and (ii) Testing the agreement between the analytical equation describing tidal celerity of Savenije and Veling (2005), a hydrodynamic model, and observations. Observations in alluvial estuaries indicate that a damped tidal wave moves slower than is indicated by the classical equation for wave celerity, whereas the celerity is higher if the tidal wave is amplified. The tidal wave in the Scheldt Estuary is strongly amplified and therefore the tidal wave moves considerably faster than computed by the classical equation. In this paper, this comparison is made for the situations of June 1995 and 1998. Moreover, the characteristics of the tidal wave propagation in the multi-ebb and flood channel estuary are analyzed. Finally, it appears that the analytical equation and the hydrodynamic model have their own strong and weak points. Recommendations are made to improve the performance of the hydrodynamic model.
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