The NSW Nearshore Wave Transformation Project is a collaboration between the NSW Office of Environment and Heritage (OEH), Manly Hydraulics Laboratory and Baird Australia. The project has developed a suite of tools to efficiently transfer offshore wave conditions measured by ocean Waverider buoys, and simulated by global and regional ocean wave models, to nearshore locations along the entire NSW coastline.
The foundation of the wave transformation tools is a database that stores pre-computed nearshore wave conditions corresponding to the full range of offshore wave conditions experienced along the NSW coast. The tools take observed or modelled offshore wave conditions and use the database to identify the corresponding nearshore wave conditions.
The database has been developed through a state wide high-resolution wave simulation study to better understand how ocean waves change as they move from deep ocean waters to shallow coastal waters.
The wave transformation database has been validated at limited locations only to date, and work is underway to measure nearshore wave conditions at representative locations along the NSW coast. The wave transformation tools will be progressively improved as high-resolution bathymetry and nearshore wave observation data become available.