夏季对流云人工增雨效果评价方法初探  

Preliminapy study on effect test methods of artificial rainfall enhancement in summer convective clouds

作　　者：蒋年冲[1] 曾光平[2] 袁野[1] 蔡辉[3] 王成章[1] 

机构地区：[1]安徽省人工影响天气办公室,合肥230061 [2]福建省气象科学研究所,福州350001 [3]安徽省气象台,合肥230061

出　　处：《气象科学》2008年第1期100-104,共5页Journal of the Meteorological Sciences

基　　金：国家科技部攻关计划(2001BA610-06);安徽省“十五”重点工程“安徽省空中云水资源开发利用工程”;中国气象局气象新技术推广项目《基于新一代天气雷达的省级人影业务系统》

摘　　要：由于对流云尺度小、生消快，降水时空分布不均匀等特点，对其进行人工增雨效果评价是十分困难的事。本文利用2003年在“江淮地区对流云人工增雨外场试验”试验区获取的对流云人工增雨监测资料，采用成对对流云试验方案，开展对对流云人工增雨效果进行评估。通过对催化云催化前后雷达特征量和地面雨量变化分析，以及催化云与非催化云自身对比分析和双比分析，初步得出：人工催化后10～20min增雨效果不明显，人工催化30min后才能产生明显的增雨效果，其效果在100％以上。Because of the characteristics of small size, short life time and the space and temporal uneven distribution of rainfall of convective clouds, it is difficult to evaluate the effect of artificial rainfall enhancement. In this paper, the effect of artificial rainfall enhancement on convective clouds was evaluated using the measurements obtained during the artificial rainfall enhancement operations on convective clouds in the artificial precipitation enhancement experiment base of the Yangtse River and the Huai River area in 2003 and the experiment scheme of parallel convective clouds. Through the analyses on the variations of the rainfalls and characters of radar characters before and after catalyzing, and the comparison between the catalyzed and un-catalyzed clouds, it was found that the effect of artificial rainfall enhancement was not obvious during the first 10 to 20 minutes after catalyzing. The effect of artificial rainenhancement appeared after 30 minutes after catalyzing, and it exceeded 100%.

关 键 词：夏季 对流云 人工增雨 效果评价 

分 类 号：P48[天文地球—大气科学及气象学]