对流参数气候特征在机场短期雷暴预报中的应用  

Application of Convective Parameters from Climatic Characteristicsin Short-term Thunderstorm Forecast

作　　者：张雯 ZHANG Wen(Mianyang College,Civil Aviation Flight University of China,Mianyang 621000,Sichuan,China)

机构地区：[1]中国民用航空飞行学院绵阳分院,四川绵阳621000

出　　处：《民航学报》2021年第2期69-74,共6页Journal of Civil Aviation

基　　金：中国民用航空飞行学院面上项目(J2020-098)。

摘　　要：本文通过选取一些常用的对流参数,分析绵阳机场短期雷暴的发生与各对流参数气候特征间的关系,发现K指数、LI指数、SI指数、SWEAT指数、θsedif85、CAPE等在雷暴发生前有较好的指示作用,雷暴发生频率不但与单个对流参数变化密切相关,通过雷暴与多对流参数空间上的分析比较,能够更进一步发现雷暴发生与多对流因子的高关联性。本文还对雷暴发生前典型物理量场进行了合成分析。By selecting some common convection parameters,this paper analyzes the relationship between short-term thunderstorm occurrence and convection parameters from climatic characteristics and concludes that the convective parameters such as K,LI,SI,SWEAT,θsedif85,CAPE indexes have obvious characteristics before the thunderstorms occur and have better indication function for thunderstorms.The results show that the frequency of thunderstorms is not only closely related to changes of single convection parameter,but also shows high correlation with multiple convection factors as discovered in comparing the thunderstorms with multiconvection parameters in space.Moreover,by calculating the sounding data before strong thunderstorm weather occurred at Mianyang Airport,some typical physical fields are synthesized.

关 键 词：雷暴 气候特征 对流参数 物理量场 

分 类 号：P457[天文地球—大气科学及气象学]