北京地区闪电活动及其与强对流天气的关系

The relationship between Lightning Activity and Severe Convection Weather in Beijing Area in summer from 1995 to 1997

利用单站闪电定位系统Ｍ－ＬＤＡＲＳ监测１９９５～１９９７年夏季北京地区的闪电活动。分析结果表明：闪电频数的日变化与强对流天气发生有一定对应关系；不同类型的天气过程，如冰雹、暴雨发生时，闪电中地闪和云闪的比例有明显的差异，其中地闪中正、负闪和云闪中正。

The lightning activities Beijing area were monitored with single station lightning detection system(M LDARS)in summer of 1995—1997.The result shows that the relationship between diurnal variation of lightning frequency and severe convection weather.In the different weather types,such as hail or heavy rain,the proportions of ground flash and cloud flash aren't the same.The high amounts of cloud flash are attributed to the presence of hail,and a great deal of ground flash associated with the observations of heavy rain.