Author(s)

F. Li, C. Dyt & C. Griffiths

Abstract

A coastal morphodynamic model for cross-shore sediment transport F. Li, C. Dyt & C. Griffiths Predictive Geoscience, CSIRO Petroleum, Australia Abstract A numerical model to represent the mechanisms of cross-shore sediment transport induced by wave and storm events has been established. The model consists of three sub-models (wave transformation, morphodynamic movement, and sedimentation) capable of representing the transport and redistribution of four grain sizes over a coastal area. It is designed to simulate the morphological evolution caused by crossshore transport. This model can thus be superimposed on existing long-shore sediment transport models. An application to a well-documented South Australian coastline suggests that the model is able to reproduce erosion and accretion trends observed in nature. The short computer run-time permits efficient model calibration and verification. 1 Introduction In coastal sediment transport models, representing the day-by-day cross-shore transport by

Keywords