Calculation of currents in Taiwan Strait during summer Ⅰ. Three-dimensional diagnostic calculation

A three-dimensional nonlinear model in a coordinate is set up and used to calculate the currents in the Taiwan Strait (TS) with hydrographic data collected during summer of 1984 end 1988.It is shown that there is a persistent northward current with the volume transport(VT) of 0.83×10⁶ m³/s through the TS during summer.Among them, the VT through the eastern and western part of the southern boundary of the strait is 0.58×10⁶ m³/s and 0.25×10⁶ m³/s, respectively.The velocity is the strongest in the eastern part of the TS and comes sernnd in the western part of the TS.The upwelling generally occurs near Fujian coast.On the current features in the TS during summer, the density current is primary and the wind-driven current is of secondary importance.