TY - JOUR AU - Matheen, Nashwan AU - Harley, Mitchell D. AU - L.Turner, Ian AU - Simmons, Joshua A. AU - Thran, Mandi PY - 2020/12/28 Y2 - 2024/03/28 TI - DO WE NEED PRE-STORM SURVEYED BATHYMETRY FOR OPERATIONAL EROSION FORECASTING? EVALUATION OF REPRESENTATIVE AND SYNTHETIC BATHYMETRY ALTERNATIVES JF - Coastal Engineering Proceedings JA - Int. Conf. Coastal. Eng. VL - IS - 36v SE - Sediment Transport and Morphology DO - 10.9753/icce.v36v.sediment.13 UR - https://icce-ojs-tamu.tdl.org/icce/article/view/10218 SP - sediment.13 AB - <html>Immediate pre-storm bathymetry is a key input required for numerical models used in coastal hazard Early Warning Systems. However, the expense and challenging nature of hydrographic surveying means that the availability of high-quality data is extremely rare. This study evaluates the extent to which synthetic and representative bathymetry alternatives can be used to obtain reliable predictions of storm induced sub-aerial erosion using the XBeach coastal erosion numerical model. Multiple storm events at 2 contrasting sites are modelled using 6 bathymetry scenarios including pre-storm surveyed bathymetries, an average bathymetry, and Dean profiles. The output is analysed to evaluate the skill of XBeach erosion predictions as a function of the bathymetry used.<br><br><b>Recorded Presentation from the vICCE (YouTube Link): <a href="https://youtu.be/bE3aXVXxZqQ">https://youtu.be/bE3aXVXxZqQ</a></b></html> ER -