一、引言目前,以强对流天气为代表的中尺度灾害性天气,其预报准确率的提高,有赖于中尺度天气监测能力的增强和对中、小尺度天气过程的深入认识。随着气象雷达的迅速发展与广泛应用,特别是多普勒天气雷达等一批新装备逐步投入气象业务应用, I. INTRODUCTION At present, the forecasting accuracy of mesoscale disastrous weather, represented by strong convective weather, depends on the enhancement of mesoscale weather monitoring ability and the deep understanding of the mesoscale and meso-scale weather processes. With the rapid development and extensive application of meteorological radars, a batch of new equipment, especially Doppler weather radar, has gradually been put into use in meteorological services.