中文摘要：

为了研究雷暴云中高温区次生冰晶浓度对雷暴云微物理过程和电过程的影响,根据模拟个例的地理位置,更新了原有的三维强风暴动力-电耦合数值模式中的初始冰晶核化公式;并在模式中的-5℃温度层结上均匀播撒了3.0 km×3.0 km×0.5 km的低中高三组浓度的自然冰晶,从而影响了云中次生冰晶的产量。结果表明：1初始冰晶的播撒量与次生冰晶的产量呈正相关;2繁生冰晶的增加使得云中冰晶粒子分布区域向雷暴云上部发展,霰粒子分布区域向雷暴云下部发展,从而增加了雷暴云中冰晶和霰的混合区域;3高播撒的初始冰晶会改变闪电的出现时刻并使得闪电频次明显增多。模拟中算例2和算例3闪电分别增多了24.4%和46.9%。

英文摘要：

In order to research the microphysical processes and electrical process influence of secondary ice on the high temperature area of thunderstorm cloud, according to the simulation casegeographical location the initial ice nucleation equations in the three-dimension strong storm power-theoriginal electric coupling numerical model; and Evenly seeding three 3.0 km × 3.0 km × 0. 5 km natural ice crystals example in the temperature of - 5℃ tempera- ture stratification in the mode which affect the yield of secondary ice clouds were updated. The results showed that ： ① secondary ice production was positively related to initial ice seeding. ② ice crystal multiplication increased led to the cloud ice crystal distribution area upword to the cloud top, graupel distribution area downword to thunderstorm cloud lower, thus increasing the mixing area of thunderstorm cloud ice and graupel. ③ the highseeding initial ice will change the occurrence of lightning constantly and makes the lightning frequency increased significantly, in simulation example 2 and 3 respectively increase 24.4% and 46. 9% lightning.