Earth and Planetary Sciences
2 years ago

Strong tidal currents driving rapid sand shoal mobility, impacting coastal erosion

EarthArXiv (California Digital Library)
Sand Shoal Dynamics of a Tide-Dominated Estuarine Embayment: Comparison of a Numerical Sediment Transport Model against Field Observations
Ben Ames Williams, Lex Nielsen, Will Glamore, Duncan Rayner, Francois Flocard, David J. Williams

Paper Summary

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The study looked at how sand shoals affect wave energy on coastlines. They used a computer model to predict tidal elevations, currents, and sediment movement. The model was accurate for tidal elevations and currents, but slightly less so for sediment transport. The sand shoals move quickly due to strong tides, with a lot of sediment moving away from the shore. This information will help make decisions about managing the coastline at Portsea.