2017 Volume 73 Issue 2 Pages I_97-I_102
In this study, the form and conditions of obliquely descending eddy (ODE) formation were examined. Sediment transport due to ODEs was also studied. The results of this study newly confirmed the formation of four ODEs, whereas the previous studies have shown the formation of three ODEs in the on-offshore direction. Conditions of ODE formation were found to be controlled by Breaker type index (Bt) and Reynolds number (Re). Sediment was transported by ODEs, leaving tongue-shaped erosion. Tongue-shaped erosion matched an ODE's contact point with the sea bottom topography. Therefore, sediment erosion is thought to occur as a result of an ODE reaching the sea bottom topography.