对流性云火箭增雨试验效果的数值模式评估  

Modeling Evaluations on Effects for Convectional Cloud Seeding with AgI-Loading Rocket to Enhance Precipitation

作　　者：孙海燕[1] 肖辉[2] 王振会[1] 张蔷[3] 

机构地区：[1]南京信息工程大学电子工程系,江苏南京210044 [2]中国科学院大气物理研究所,北京100029 [3]北京市人工影响天气办公室,北京100089

出　　处：《南京气象学院学报》2005年第2期172-179,共8页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金资助项目(40333033);国家自然科学基金资助项目 (40175001 );国家"十五"科技攻关计划项目(2001BA10A 06 05);"奥运科技"专项(2001BA904B09);中国科学院大气物理研究所创新项目(8 4605)

摘　　要：利用中国科学院大气物理研究所建立的具有人工增雨催化功能的三维云数值模式(IAP CSM3D),对2003年7月5日北京地区的一次对流性云火箭增雨作业的效果进行了数值模式评估,并就火箭催化的时间、部位和剂量对增雨效果的影响进行了分析。结果表明,利用火箭在对流云中适宜的部位进行人工播云催化作业是有正效果的;在云发展阶段进行催化,增雨效果较好;火箭发射仰角对增雨的效果有很大影响,给出了火箭最佳发射仰角的选取原则,并分析了火箭催化增雨的机理。In this paper,the AgI-seeding effects for the convectional clouds in Beijing on July 5,2003 were evaluated by using the three-dimensional convective storm model (IAP-CSM3D) with an artificial seeding function module developed by the Institute of Atmospheric Physics (IAP),Chinese Academy of Sciences.Detailed simulations on rain enhancement with rockets launching at different time,elevations,distances and seeding in different positions of clouds are analyzed.The results show that a positive effect of rain enhancement can be obtained when seeding in suitable parts of the clouds.A greater benefit in the rain enhancement effect can be gotten when seeding in the developing stage of clouds.The launching elevation of rockets has a great influence on the effect.The principle for the optimal launching elevation selection is given and the mechanism of rain enhancement by AgI-loading rockets is also analyzed in this paper.The above results obtained are expected to help improving the seeding efficiencies in practice.

关 键 词：对流云 火箭催化 人工增雨效果评估 数值模拟 

分 类 号：P481[天文地球—大气科学及气象学]