【摘要】 多普勒天气雷达和L-波段探空雷达在探测中尺度天气方面,各有长处。前者具有较高的时空分辨率,缺点是需要反演。后者数据直接且要素多,但为局地数据,存在代表性的问题。利用多普勒雷达反演风廓线和300 m分辨率的探空数据相结合,可以很好的解释2006年8月26日发生在青岛的一次对流性暴雨过程的演变。在这次过程中,300 m分辨率的探空数据捕捉到了2 km左右高度上的冷平流信息,而多普勒雷达反演数据显示,温度平流对于对流的发生发展和消亡起着非常重要的作用。而且,多普勒雷达反演数据还揭示,在天气尺度影响系统仍然存在的背景下,冷平流的持续作用,引起了青岛上空大气状态的变化,导致整个降水过程结束。更多还原

【Abstract】 Doppler radar and L-wave sounding radar have their advantages respectively in aspect of observing mesoscale weather.The former has relatively high time-space resolution with weakness of requiring retrieval.The later has direct data with many factors,however,data are local data which raise the issue of representative.By combining Doppler radar VWP and the observing data of 300 meters resolution,we would be able to interpret the evolution of one convective torrential rain occurred in Qingdao in 26th August 2006.In that process,the sounding data of 300 meters resolution caught the cold advective information in the altitude of about 2 kilometers,and the VWP data indicated that temperature advection played a very important role to the out-growth,development and extinction of the convective current.Further more,the VWP data also exposed that,with the continuous existence of the synoptic scale influence system,the persistent effect of the cold advective current had led to the change of the atmosphere situation in the upper air of Qingdao,which caused the stop of the whole precipitation process.更多还原