鹰潭雷电天气回波演变与移动路径分析

Analysis of lightning weather echo evolution and moving path in Yingtan

雷电灾害是最为常见的自然灾害之一,准确预测雷电的活动,可间接达到预测雷暴大风、冰雹等强对流天气的目的。文章通过对鹰潭市2016~2018年雷电资料、天气形势资料、雷达回波等资料,采取统计分析、形态对比等方法进行研究。结果表明:1)鹰潭市3 a雷电日逐年增加;2)4种回波移动路径中,东北型数量最多;3)鹰潭市雷电天气的雷达回波移动路径主要有4种:东北型、东南型、西北型和西南型。这些明显的特征为预测雷电天气提供了依据。

Lightning disaster is one of the most common natural disasters.Predicting quasi-lightning activities indirectly achieves the purpose of predicting thunderstorms,strong winds,hail and other severe convective weather.Based on the lightning data,weather situation data and radar echo data from 2016 to 2018 in Yingtan city,statistical analysis and morphological comparison methods are adopted to study in this paper.The results show that the lightning days in Yingtan increase year by year in three years.Among the four echo moving paths,the northeast type has the largest number.There are mainly four radar echo moving paths in Yingtan city during lightning weather,which are northeast type,southeast type,northwest type and the southwest type.These obvious characteristics provide the basis for forecasting lightning weather.