广汉机场雷暴概况及夏季对流参数特征初探  

Research on the Thunderstorm and Summer Convection Parameters in Guanghan Airport

作　　者：李瑶婷 Li Yaoting(Guanghan College of Civil Aviation Flight University of China,Guanghan 618307 Sichuan China)

机构地区：[1]中国民用航空飞行学院广汉分院,四川广汉618307

出　　处：《中国民航飞行学院学报》2021年第2期39-43,共5页Journal of Civil Aviation Flight University of China

摘　　要：对广汉机场而言,雷暴发生频次具有较明显的季节性特点,主要集中在7、8月,多出现于早间和午后至傍晚时段。通过分析夏季有无雷暴发生时A、SI、K、ΔCAPE等对流参数的变化情况,有如下结论:各参数值的大小在夏季各月的表现不尽相同,由统计分析可知,当6月A>14,K>35,7月A>13,K>40,8月A>11,K>40且SI<-1.5,ΔCAPE>1300,再有高空槽、西南涡等有利于雷暴产生的天气系统配合时,本场有大概率出现雷暴天气,须提前预报雷暴发生的时间,并及时向塔台指挥员汇报,做好航空气象预报、预警服务。For Guanghan airport,the frequency of thunderstorms,which has obvious seasonal characteristics,is mainly concentrated in July and August,mostly in the morning and from afternoon to evening.By analyzing the changes of convective parameters such as A,SI,K,ΔCAPE in the presence or absence of the thunderstorm in summer,the paper finds out that the value of each parameter is not the same in summer.According to the statistical analysis,when in June A>14,K>35,and in July A>13,K>40,in August A>11,K>40,and SI<-1.5,ΔCAPE>1300,coordinated with the weather systems like high-altitude troughs,southwest vortices etc.,it is necessary to consider that there will be a high probability of thunderstorm weather in the airport and the rough time of the thunderstorm should be predicted in advance,and then the tower commanders are informed in time which will be favorable for aviation weather forecasting and early warning services.

关 键 词：广汉机场 雷暴 对流参数 预报因子 

分 类 号：V321.228[航空宇航科学与技术—人机与环境工程]