By means of three dimensional POM model, which computes the eddy viscosity coefficient based on two-order turbulent closed model, the tide and tidal current in the Beibu Gulf are simulated with fine grid.

Our modeled results also show that the semi-diurnal tides and currents are dominant in Quanzhou Bay;except in the center of open boundary of the researched area where rotary currents are marked,most sea areas are characterized by rectilinear to-and-fro current;besides,the large tidal range.