The GENESIS model has been widely used for predictions of long-term shoreline evolution along wave-dominated open-coast beaches. However, to be applied in the vicinity of coastal inlets new capabilities needed to be implemented. This paper describes two new capabilities recently implemented in the model. The first is the extension of the model to calculate the longshore sediment transport rate by means of a generalized version of the Bagnold formula (1963) which makes it possible to describe longshore transport and shoreline change originating from multiple sources of a longshore current, such as wind and tide. The second is provision for inclusion of a pre-specified offshore contour to allow dominant local or regional bathymetric features to be represented in the wave transformation. Illustrative examples indicate promising results for these major enhancements of the model.
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