Aly Chandler (USC) used numerical modelling to evaluate the effectiveness of the Maroochy Groyne Field in providing sufficient protection from erosion and inform the upgrade of a section of GSC seawall. The 2D Hydrodynamic/morphodynamic XBeach model was validated by replicating historic short-term erosion at the Maroochy Groyne Field with local sediment parameters, and high-resolution aerial imagery. The modelling was then used within a decision framework to simulate local hydrodynamics, sediment movement and interactions with existing structures to simulate erosion, to support new designs.
