首都机场两次高空槽雷雨的对比分析  

作　　者：黄继雄[1] 

机构地区：[1]民航华北空管局气象中心,北京100009

出　　处：《科技创新与应用》2021年第1期91-95,共5页Technology Innovation and Application

摘　　要：文章对2020年5月30日及2020年6月1日,首都机场发生的两次高空槽雷雨过程,综合天气形势诊断、临近保障和决策服务等方面,进行较全面的复盘和对比分析,总结出此类雷雨天气过程的航空气象服务保障经验。结论如下:当高空槽东侧有较强的高环流时,高空槽尺度大,槽前有深厚的暖平流和湿平流,槽前暖区中不稳定能量充足,在槽临近前可提前激发出雷雨,使雷雨跳跃性传播;高空槽后倾,高层槽滞后于低层槽,高空槽过境时间长,可出现多段雷雨,降水量较大。当高空槽垂直分布时,各层槽过境时间相近,槽区窄,过境快,槽后冷空气入侵快,雷暴较强,降水较少。This paper makes a comprehensive review and comparative analysis of the two high-altitude trough thunderstorm processes occurred in the Capital Airport on May 30,2020 and June 1,2020,comprehensive weather situation diagnosis,proximity guarantee and decision-making services.The aviation weather service support experience of this kind of thunderstorm weather process is summarized.The conclusions are as follows:when there is a strong high circulation on the east side of the high-altitude trough,the scale of the high-altitude trough is large,there are deep warm advection and wet advection in front of the trough,and the unstable energy in the warm area in front of the trough is sufficient,which can stimulate the thunderstorm in advance before the trough is near.Make the thunderstorm jump spread;the high-altitude trough tilts backward,the high-level trough lags behind the low-level trough,the transit time of the high-altitude trough is long,multiple thunderstorms can occur and the precipitation is relatively large.When the upper trough is vertically distributed,the transit time of each trough is similar,the trough area is narrow,the transit is fast,the cold air behind the trough invades quickly,the thunderstorm is stronger,and the precipitation is less.

关 键 词：高空槽雷雨 天气形势诊断 临近保障和决策服务 复盘分析 

分 类 号：V321[航空宇航科学与技术—人机与环境工程]