Advances in cross-shore transport modelling with GAIA
Kolokythas, G.; Breugem, W.A.; Wang, L.; De Maerschalck, B. (2024). Advances in cross-shore transport modelling with GAIA, in: Proceedings of the XXXth TELEMAC Users Conference, 8-9 October 2024, Chambéry, France. pp. [1-10]
In: (2024). Proceedings of the XXXth TELEMAC Users Conference, 8-9 October 2024, Chambéry, France. [S.n.]: [s.l.].
The work presented in this article aims to make the TELEMAC suite capable of simulating cross-shore sediment transport through the implementation of the different cross-shore processes in the GAIA and TOMAWAC modules. Surface roller energy produced in the breaking wave front, wave breaking turbulence, the return current that counterbalances the so-called Stokes drift appearing close to the water surface and wave non-linearities developing in the surf zone are the processes that are introduced in the code. The new developments are evaluated by means of a 2D-morphodynamic model for the central part of the Belgian coast, which is validated against field measurements under realistic forcing conditions. The results show that the implementation of the cross-shore processes is an added value in the modelling of the near- and onshore bed evolution.
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