一次阜新强雷暴天气的雷达回波及闪电特征分析

Characteristics of Lightning and Radar Echoes of a Severe Thunderstorm in Fuxin

根据2007年7月8日阜新强雷暴天气的雷达资料和闪电定位仪资料,分析闪电活动与雷达回波之间存在的关系。结果表明,阜新地区位于"丁"字槽交叉处,并不断有下滑冷空气影响,对应地面暖锋南压至该地区,是造成这次雷暴天气的天气背景。闪电发生的位置变化与飑线强回波移动密切相关,速度回波清晰地反映和预示雷达回波的移动趋势。

Based on data of weather radar and lightning position indicator in Fuxin on July 8th of 2007,the relationship between lightning activity and radar echo was analyzed.The results showed that Fuxin located at t-shaped trough,and it was continuously influenced by downslide cold air,then warm front form south arrived,which was the weather ground of this thunderstorm.The variation of the position of lightning was closely related to the movement of strong squall line echo,and the movement tendency of the radar echo was clearly reflected and predicted by velocity echo.