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A reduced-complexity shoreline change model combining longshore and cross-shore processes: The LX-Shore model

Abstract : A reduced-complexity numerical model, LX-Shore, is developed to simulate shoreline evolution along wave-dominated sandy coasts. The model can handle any sandy shoreline geometries (e.g. sand spits, islands), including non-erodible areas such as coastal defenses and headlands, and is coupled with a spectral wave model to cope with complex nearshore wave fields. Shoreline change is primarily driven by the gradients in total longshore sediment transport and by the cross-shore transport owing to variability in incident wave energy. Application to academic cases and a real coast highlights the potential of LX-Shore to simulate shoreline change on timescales from hours (storm) to decades with low computational cost. LX-Shore opens new perspectives in terms of knowledge on the primary mechanisms locally driving shoreline change and for ensemble-based simulations of future shoreline evolution.
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https://hal-brgm.archives-ouvertes.fr/hal-02734892
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Soumis le : mercredi 18 novembre 2020 - 19:28:02
Dernière modification le : mardi 18 mai 2021 - 11:48:01
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Arthur Robinet, Déborah Idier, Bruno Castelle, Vincent Marieu. A reduced-complexity shoreline change model combining longshore and cross-shore processes: The LX-Shore model. Environmental Modelling and Software, Elsevier, 2018, 109, pp.1-16. ⟨10.1016/j.envsoft.2018.08.010⟩. ⟨hal-02734892⟩

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