CAJ | 학술논문

选取一次飑线过程的3次TRMM卫星同步轨道观测数据，分析了飑线中闪电与雷达回波的关系，结果表明：81％的闪电发生在7km高度雷达回波大于35dBz的像素附近。闪电绝大部分发生在对流降水区，占总闪电数的94％。发生闪电的对流单体其7km最大雷达反射率一般大于35dBz，6km与9km最大雷达反射率因子之差在15dBz以下，其数量占到总数的85．7％。对流单体雷达反射率中值廓线能够较好地表示单体闪电频数。
선취일차박선과정적3차TRMM위성동보궤도관측수거，분석료박선중섬전여뢰체회파적관계，결과표명：81％적섬전발생재7km고도뢰체회파대우35dBz적상소부근。섬전절대부분발생재대류강수구，점총섬전수적94％。발생섬전적대류단체기7km최대뢰체반사솔일반대우35dBz，6km여9km최대뢰체반사솔인자지차재15dBz이하，기수량점도총수적85．7％。대류단체뢰체반사솔중치곽선능구교호지표시단체섬전빈수。
We chose three observed data by TRMM satellite in a squall line process, and analyzed the relationship between lightning and radar echo. The results showed that 81% of lightning was near the radar echo which was larger than 35 dBz in 7 km altitude. Most of lightning occurred in the convective precipitation area, which contributed 94%. Lightning flashes often occurred in the convective cells whose maximum radar reflectivity in 7 km altitude was larger than 35 dBz, and the lapse rate of maximum radar reflectivity between 6 km and 9 km altitude was lower than 15 dBz, which contributed 85.7%. The mid- value profile of the convective cell radar reflectivity has capability to reveal cell flash frequency.