跨区域人工影响暴雨强度的数值模拟Ⅰ:条件分析及增雨模拟  

Numerical Simulation of Crossing-Region Modification of Rainstorm IntensityⅠ:Conditions and Simulation of Cloud-Seeding

作　　者：高庆九[1] 李宏江 闵锦忠[1] 

机构地区：[1]南京信息工程大学江苏省气象灾害重点实验室,江苏南京210044 [2]山东省威海市气象局,山东威海264200

出　　处：《南京气象学院学报》2006年第6期790-798,共9页Journal of Nanjing Institute of Meteorology

基　　金：江苏省自然科学基金资助项目(BK2004140);国家自然科学基金资助项目(40575052);教育部留学回国人员基金项目;江苏省气象灾害重点实验室资助项目(KLME050218)

摘　　要：利用IAP三维云模式对2005年7月一次强暴雨过程上游的水汽通量进行了人工影响试验,模拟和分析发现,AgI播撒速率的选择对增雨效果影响较大,仅当播撒速率在0.07 g/s以下时才有增雨效果;过冷云水发展到极大值时,以0.05 g/s播撒AgI获得的增雨效果最好,播撒过程使得自然云内的冰晶和雪晶出现的时间提前,含量明显增加。Modification of upstream water vapor flux of a rainstorm in July 2005 was simulated to change the intensity of downstream precipitation by using the IAP 3-dimension cloud model, and the conditions and means of weather modification were analyzed. Results show that the seeding rate has close relationship with the effect of precipitation enhancement： the effect can not be seen only when the below 0. 07 g/s. At the same time, it is ter reaches the maximum value and the seeding rate is also found that the best effect appears when the super-cooled waseeding rate of AgI is 0. 05 g/s. Seeding makes the ice and snow crystal in the natural cloud appear earlier, and the content increase evidently.

关 键 词：三维云模式 人工增雨 暴雨 

分 类 号：P481[天文地球—大气科学及气象学]