NUMERICAL SIMULATION FOR THE SEASONAL MOVEMENT OF SUBTROPICAL HIGH RIDGE LINE Ⅰ. HEATING EFFECT OF SOLAR RADIATION

Jn this paper, the numerical simulation of the latitude position variation of subtropical high ridge line is made by using the two dimensional zonal average models. When the solar radiation heating is considered in the model, the jumping process of the subtropical high ridge takes place during its seasonal northward movement. There would be no such a jumping process if the radiation heating is absent. So, it may be concluded that the basic character of seasonal movement of subtropical high depends mainly on the solar radiation heating.     

EFFECT OF THE KUROSHIO VARIATION ON THE SUBTROPICAL HIGH PRESSURE

By using occanographic data (luring 1955-1978, we have analysed aspects of volume transport variation of the Kuroshio tor PN-linc in the East China Sea, and relationships between volume transport variation of the Kuroshio and the subtropical high pressure (SHP) of the Pacific. We have found that volume transport of the Kuroshio is closely related to the long-period oscillations of the subtropical high pressure for 8-9 years and 2-3 years, respectively. The subtropical high pressure has a phase lag behind compared with volume transport of the Kuroshio. In addition, the seasonal volume transport of the Kuroshio is closely related to the subtropical high pressure, too. The results show that volume transport variation of the Kuroshio has certain influence on future variation of the subtropical high pressure. Therefore, the volume transport of the Kuroshio may be an important parameter lor long-period forecasting of the subtropical high pressure.