Beach Improvement and Monitoring
The Depth of closure (DoC), i.e., the depth seaward of which significant sediment transport and consequent elevation changes do not occur, is one of the most important parameters in coastal morphodynamics. The present study analyzes both measured DoCs and wave datasets at multiple beaches in Japan, and re-evaluates the applicability of the Nicholls’s (1998) equation. The DoCs computed using the equation show good agreement with measured values at 12 beaches analyzed so far. The DoCs computed with reanalyzed wave data appear to be slightly less accurate compared to those computed using measured wave data.