碘化银播撒对流云增雨数值模拟

Numerical Simulation of a Convective Cloud Precipitation Enhancement by Silver Iodide Seeding

利用中国科学院大气物理研究所建立的完全弹性三维对流云模式,对发生在2008年内蒙古通辽市8月26日的一次对流性降水过程进行催化模拟和分析.结果表明,在本例中,在最大过冷水区播撒,采用合适的剂量进行催化对取得较好的增雨效果非常重要,AgI催化剂浓度过大则会取得负效果.播撒的时间越早,增雨效果越好.

With the fully elastic three-dimensional convective storm model（IAP-CSM3D） developed by the Institute ofAtmospheric Physics（IAP）,the Chinese Academy of Sciences,we simulate a convective cloudprocess and analyze with cloud-seeding process that occurred in the Tongliao on June 21,2008.The results showed that in this case,in the region of maximum supercooled water have been seed,to use the appropriate doses to obtain a better catalytic effect of rainfall is very important,AgIcatalyst concentration of too much negative effect will be achieved.Sowing time sooner,the better the effect of rainfall.