CAJ | 학술논문

为进一步了解2009年6月5日发生在安徽的一次飑线天气过程的流场结构，本文将两步变分法应用于安徽省合肥多普勒天气雷达资料的风场反演，并利用反演结果检验发生冰雹、大风以及闪电等强对流天气过程的预警条件。结果表明，该次天气过程主要受到东北冷涡的影响，另外高空西北冷气流和地面暖气流以及深层的垂直风切变促进了该次飑线强对流天气的发生；冰雹、大风以及闪电等强对流天气对应的一些特征量关系符合相关预警条件。
위진일보료해2009년6월5일발생재안휘적일차박선천기과정적류장결구，본문장량보변분법응용우안휘성합비다보륵천기뢰체자료적풍장반연，병이용반연결과검험발생빙박、대풍이급섬전등강대류천기과정적예경조건。결과표명，해차천기과정주요수도동북랭와적영향，령외고공서북랭기류화지면난기류이급심층적수직풍절변촉진료해차박선강대류천기적발생；빙박、대풍이급섬전등강대류천기대응적일사특정량관계부합상관예경조건。
In order to make a further acquaintance about flow structure of a squall line that happened on June 5 ,2009 in Anhui Prov-ince,a two-step variational method was used to retrieve the wind field based on Hefei Doppler radar data.The derived winds and re-flectivity were used to examine the early warning conditions about the strong convective weather such as hail,strong winds and light-ning.The results indicate that the weather process was mainly influenced by the northeast cold vortex.Moreover,the northwest cold air current in the high altitude,southeast warm air in the low altitude and vertical wind shear promoted this strong convection weather process.The relevant characteristic parameters to some strong convective weather such as hail,strong wind and lightning were proved to be in accord with the early warning conditions for this squall line weather.