%0 Journal Article %T A reduced-complexity shoreline change model combining longshore and cross-shore processes: The LX-Shore model %+ Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) %+ Université de Bordeaux (UB) %+ Environnements et Paléoenvironnements OCéaniques (EPOC) %A Robinet, Arthur %A Idier, Déborah %A Castelle, Bruno %A Marieu, Vincent %< avec comité de lecture %@ 1364-8152 %J Environmental Modelling and Software %I Elsevier %V 109 %P 1-16 %8 2018-11 %D 2018 %R 10.1016/j.envsoft.2018.08.010 %K Numerical model %K shoreline change %K sandy coasts %K cross-shore transport %K longshore transport %Z Sciences of the Universe [physics] %Z Environmental SciencesJournal articles %X 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. %G English %2 https://brgm.hal.science/hal-02734892/document %2 https://brgm.hal.science/hal-02734892/file/Manuscript_PostPrint.pdf %L hal-02734892 %U https://brgm.hal.science/hal-02734892 %~ SDE %~ INSU %~ BRGM %~ EPHE %~ CNRS %~ GIP-BE %~ PSL %~ TEST-DEV %~ EPHE-PSL %~ ANR