对流云增雨作业效果回波对比分析  

COMPARISON AND ANALYSIS OF RADAR ECHOES IN A PRECIPITATION ENHANCEMENT ACTIVITY IN CONVECTIVE CLOUDS

作　　者：周勇[1] 王斌[2] 唐仁茂[2] 杨维军[2] 石燕[2] 

机构地区：[1]湖北省十堰市气象局,十堰市442000 [2]湖北省气象科学研究所,武汉430074

出　　处：《应用气象学报》2001年第z1期158-163,共6页Journal of Applied Meteorological Science

基　　金：国家科技攻关课题! (96 0 2 0 0 1 0 5);湖北省科委重点课题!"混合云人工催化技术方法及鄂东防雹作业判据的研究"

摘　　要：人工催化对流云的效果检验是一个非常复杂的科学难题 ,它受当前科研水平、仪器装备水平、研究对象复杂性等多方面的制约。该文通过运用加密雷达资料对一次对流云催化作业个例的效果进行分析 ,采用目标云和对比云比较分析的方法 ,探讨了根据雷达回波各种参数的变化来判断催化作业效果的途径。结果表明 ,目标云在降水、生命期特征、回波垂直特征参数变化等方面都表现出与对比云明显的差异 ,从而推断本次作业达到了增加降雨的效果。In view of the exactness of result test restricted by observation apparatus at present, it is necessary to develop a kind of convenient way for estimating the effectiveness of seeding. Through analyzing a case of seeding in convective clouds by comparing the target cloud with the reference cloud, a method for estimating the effectiveness of seeding based on various parameters of radar echoes is discussed. It indicates that there are obvious variations in some aspects such as precipitation, characteristics of lifetime and various vertical parameters of radar echoes. Accordingly, the effectiveness of precipitation enhancement activity is assessed.

关 键 词：对流云 效果检验 目标云 对比云 

分 类 号：P481[天文地球—大气科学及气象学]