The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divid...The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divided into two parts:the vertically-intopated equations (external mode) and the vertical structure equations(internal mace). The first set of equations being the propagation of the tidal weves and the ADI numerical scheme has ben chosen to solve them. Conerning the vertical structure equations, they are solved by means of leapfrog stepping procedure.The main features of the tide and associated tidal current in the Bohai Sea are examined with this 3-D model.To have a good reproduction of vertical structure, the column is divided into 10 layers and the M2 tidal current is computed in detail. The simulation reveal the spetial structure and some important characteristics of the tidal current of the Bohai Sea. The application of the 3-D madel to forecasting of the tidal current in the Bobal Sea has been Performed as an illustration.展开更多
The main characteristic of the Bobal Sea southern coastal water (short for: coastal water) is low- er salinity, so in this paper, the salinity observed at the Peng-Lai ocean-staion is taken as an index to judge the ef...The main characteristic of the Bobal Sea southern coastal water (short for: coastal water) is low- er salinity, so in this paper, the salinity observed at the Peng-Lai ocean-staion is taken as an index to judge the effect of the coastal water to the Changdao Island sea area. When the effect of the coastal water is stronger, the nutrient salt content is higher, the number of plankton and the food of cultivat- ing scallops are rich in this sea area, so the scallops are growing well; the per mu yield of the scallops is higher and vice versa.展开更多
文摘The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divided into two parts:the vertically-intopated equations (external mode) and the vertical structure equations(internal mace). The first set of equations being the propagation of the tidal weves and the ADI numerical scheme has ben chosen to solve them. Conerning the vertical structure equations, they are solved by means of leapfrog stepping procedure.The main features of the tide and associated tidal current in the Bohai Sea are examined with this 3-D model.To have a good reproduction of vertical structure, the column is divided into 10 layers and the M2 tidal current is computed in detail. The simulation reveal the spetial structure and some important characteristics of the tidal current of the Bohai Sea. The application of the 3-D madel to forecasting of the tidal current in the Bobal Sea has been Performed as an illustration.
文摘The main characteristic of the Bobal Sea southern coastal water (short for: coastal water) is low- er salinity, so in this paper, the salinity observed at the Peng-Lai ocean-staion is taken as an index to judge the effect of the coastal water to the Changdao Island sea area. When the effect of the coastal water is stronger, the nutrient salt content is higher, the number of plankton and the food of cultivat- ing scallops are rich in this sea area, so the scallops are growing well; the per mu yield of the scallops is higher and vice versa.
