摘要
本文应用连续方程和湿绝热降水公式组成的降水计算模式对两个受到西风带天气系统侵入的台风降水进行了计算。计算的降水区和降水强度与实况都较一致。发现在侵入台风后的西风带系统附近的低层产生一新的大风中心,在该中心的下风处的低层辐合区产生暴雨。从能量转换计算的结果发现,大风中心是由位能向动能的斜压转换造成的。
In this paper, the precipitation model consisting of equations of continuity and formula of wet adiabatic rainfall rate have been used to calculate the rainfall of two typhoons, which are invaded by westerly belt synoptic system. Both calculated regions and intensity agree with that of real precitpiation. A new gale center is generated near the lower troposphere of westerly belt system when it has partly invaded into the egion of typhoon. In the lower layer convergence region of down wind at the gale center occurs hard rain. From the calculation of energy conversion, it is found that this gale center is generated by baroclinic conversion of potential energy into kinetic energy.
