A Copula-Based Simulation of Wave-Induced Pore Water Pressure Gradient and Local Acceleration Within Surf Zone for Natural and Laboratory Barred Beach Profiles

Wave-induced pressure gradients and local accelerations are important interconnected physical mechanisms involving several hydrodynamic morphodynamic coastal phenomena. Therefore, to provide a reliable realistic simulation, the dependencies among different parameters, such as water level, gradient, acceleration, sediment concentration, should be considered. Herein, copula-based simulation is presented for modeling multivariate parameters maintaining their statistical characteristics within surf zone. Archimedean elliptical copula families applied investigate dependency construction between in two case studies: one from field site on east coast of Japan, another large-scale laboratory barred beach profile. The variables evaluated using Kendall’s τ correlation coefficient. acceleration shown significantly correlated. coefficients natural lower than data. marginal probabilistic distribution functions joint probabilities estimated simulate approach. performance simulations via goodness-of-fit test. analysis shows that data comparable measurements, implying results can universally model multivariable distributions with similar conditions.