中文摘要：

利用卫星反演技术和云微物理分析方法,针对云微物理结构和降水形成过程探讨可播性、播撒方式,通过对不同类型对流云分析,归纳出4类可播云系,分析表明：1）重污染深厚对流云,当云底粒子有效半径小于7μm、凝结增长带深厚、降水启动厚度大于20℃、碰并增长带薄、无雨胚带、晶化温度低于-30℃时,可播撒吸湿性核或播撒AgI。2）强上升冰雹云,若云外型强对流特征明显、各增长带增长缓慢、无雨胚带、晶化温度低于-30℃,且云顶附近存在明显的有效半径减小带,可播撒吸湿性核或播撒AgI。3）强上升强降水对流云,云底滴较大,通常大于10μm,碰并增长较为充分,晶化温度低,一般低于-30℃,冰晶化延迟明显,冷云降水发展不充分,通过在0℃层附近播撒AgI促进冷云降水。4）污染性浅薄对流云,当云底有效半径小于10μm、凝结增长带深厚、碰并增长带薄、无雨胚带、云顶有效半径小于14μm、云厚3～6km,可播撒吸湿性核。

英文摘要：

Based on the technology of the satellite retrieval and comprehensive analysis methodology of cloud micro- physical properties, different microstructure and precipitation formation processes for convective clouds were analysed so as to investigate their seeding ability and seeding mode. Four kinds of convective clouds were summarized as seedable convective cloud systems. The first is the deep heavily polluted convective clouds, the hygroscopic nucelli or AgI can be seeded when the particle effective radius at the cloud base is less than 7 μm, and the zones of diffusional growth and ca- lescence growth are rather deep and thin, separately, there exists no zone of rainout, the glaciation temperature is below than --30 ℃, the temperature corresponding the depth of precipitation initiation covers 20 ℃ which extends from the base to the level of precipitation formation. The second is the hailstorm clouds with strong updraft, also the hygroscopic nucelli or AgI can be seeded when the strong convective characteristic can be seen in the appearance, the growth rate for different growth zones are rather low, there is no zone of rainout, the glaciation temperature is below than --30 ℃, and there exists an obvious declining zone of the particle effective radius around the cloud tops. The third is convective clouds with the strong updraft and heavy precipitation; AgI can be seeded near the isotherm of 0 ℃ so as to prompt thecold cloud precipitation when the drop near the cloud base is larger, usually than 10 μm, and the calescence growth is fully developed; the glaciation temperature is below than --30 ℃; the delay of the glaciation is obvious; the cold cloud precipitation does not fully develop. The last is the shallow polluted convective clouds; the hygroscopic nucelli can be seeded when the drop near the cloud base is less than 10 μm, and the zone of diffusional growth is deep; the zone of calescence growth is rather thin; there is no zone of rainout; the particle effective radius on the cloud top is less than