To investigate the morphological evolution of intertidal profiles under the interaction of wave and tid-al current,a sediment carrying capacity formula based on the shear stress method is derived and has been used to develop the numerical model for intertidal profile morphological evolution.The simulation results are gener-ally consistent with those by the Delft3D model,and the computational efficiency is significantly improved.The models using the shear stress method and sediment carrying capacity method were used to simulate the in-tertidal profile evolution.The results show that the sediment carrying capacity method has a better simulation effect in the upper region of the intertidal zone than that by the shear stress method,making it easier to simu-late the convex profile under sedimentation conditions,and the overall profile shape is closer to the measure-ment.The simulation of intertidal profile evolution under varying wave conditions reveals the profound influ-ence of waves on profile morphology.An increase in incident wave height notably exacerbates erosion in the in-tertidal zone,resulting in forming a distinct concave profile.
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