Estimation of the Spring Tide Bedload Transport at the Eastern Entrance of the Qiongzhou Strait

Marine sediment deposits near the Qiongzhou Strait have great potential as sources for beach nourishment and infrastructure industry aggregates. Estimation of bedload transport during spring tide improves understanding movement characteristic under dynamic conditions, which would further favor assessment mining marine sand resources. To study at eastern entrance Strait, surficial distributions were obtained through hundreds samples from field work. A semi-implicit cross-scale hydrological science integrated system model was adopted validated to simulate tidal currents in Strait. With observation simulated data, we estimated area using Bagnold Model. The rate found large temporal spatial variation. net direction cycle eastward southern parts strait westward northern strait. Our research has important implications regional engineering resources management.