Application of FVCOM in tidal modeling of the seas adjacent to Longkou City
FVCOM 在龙口海域潮汐潮流模拟中的应用研究

With the application of FVCOM(finite volume coast and ocean model), a high resolution of three-dimensional tidal model of the seas adjacent to Longkou City was built, and the model results were conformable to the field observations. Based on the calculated tidal level and current, the distributions of co-tidal lines, distributions of tidal characteristic, and distributions of the tidal current ellipses of M2, S2 , K1 and O1 were obtained. The results showed that, the main tidal characteristics in the study area were mixed semidiurnal tide; On the north of the Qimu Peninsula the rectilinear current dominated, while in the Longkou Bay the rotary current dominated with both clockwise and anticlockwise directions; the distribution of the maximum possible current velocities was basically the same as that of isobaths, and the maximum possible current velocity was especially higher on the south of Sang Island; the tidal maximum residual current appeared on the west of the Qimu Peninsula , and the residual current velocity there could reach 25 cm/s. These results are very useful for the understanding of the mechanical processes in the seas adjacent to Longkou City.