广西积云人工增雨防雹的个例数值研究  

A Numerical Simulation Study on the Hailstorm in Guangxi

作　　者：邹光源[1] 

机构地区：[1]广西壮族自治区人工影响天气办公室,南宁530022

出　　处：《气象》2007年第12期46-52,共7页Meteorological Monthly

摘　　要：利用三维积云模式模拟2006年4月9日下午发生在广西东兰县境内的一次冰雹天气过程。结果表明,三维模式对该个例具有一定的模拟能力。个例催化数值试验表明,该积云具有一定的人工催化潜力,当在出现过冷水后,自然冰晶浓度较低前在过冷水区的底部实施适量的催化,则可达到最佳的效果,既能一定程度增雨又能一定程度消雹;当过量催化时则既能一定程度消雨又一定程度消雹。The hailstorm process in the northwest Guangxi is simulated with 3-D convective cloud model. The results show that the model is capable to simulate the case to some extent. A series of seeding experiments indicate that the cumulus cloud has some potential to be artificially modified. Effect can be optimized by proper seeding at the base of the super-cooled water area as natural crystal concentration is still at a low level. Seeding may somewhat cause the rainfall enhancement as well as the hail suppression. Meanwhile over seeding may lead to the rainfall decrease as well as the hail suppression.

关 键 词：积云 增雨 防雹 数值模拟 

分 类 号：P481[天文地球—大气科学及气象学]