沈阳市降水天气过程中水汽含量特征及降水效率分析  

Analysis on Water Vapor Content Characteristics and Precipitation Efficiency in the Process of Rainfall in Shenyang City

作　　者：班显秀 耿树江 袁健 赵姝慧 

机构地区：[1]辽宁人工影响天气办公室,辽宁沈阳110016

出　　处：《安徽农业科学》2009年第23期11073-11075,11114,共4页Journal of Anhui Agricultural Sciences

基　　金：十一五"辽宁省科技厅重点攻关项目(2006210001)"人工增雨实用催化系统集成关键技术研究

摘　　要：[目的]指导强降水天气的预警和人工增雨工作。[方法]在沈阳雨季的7～8月份,利用地基双通道微波辐射计、激光粒子探测仪、翻斗式自动雨量计的同步观测结果,分析降水云中水汽含量的变化特征及降水效率。[结果]经翻斗式雨量计验证确认,激光粒子探测仪反演的以1分钟为时间间隔的雨强资料是可信的情况下,雨强同液态水累积含量及汽态水累积含量之间存在相关关系;提出了计算降水效率的方法,分析了雨强同降水效率的关系。[结论]水汽含量特征及降水效率的分析,对强降水天气的预警和人工增雨工作将有一定的指导意义。[ Objective ] The research aimed to guide the warning of the strongly rainfall weather and the artificial rainfall. [ Method] By using the ground dual-channel microwave radiometer, laser particle detector and automatic tripper-hopper rain gauge dump, precipitation efficiency and water vapor content characteristics were analyzed between July and August in monsoon of Shenyang. [ Result] When the rain intensity data of one - minute interval was credible that was detected by the laser particle detector, it was confirmed that rain intensity is related to the liquid water integrated content and water vapor integrated content, validated by the automatic tripper-hopper rain gauge. The method of calculating precipitation efficiency was proposed and the relationship between rain intensity and precipitation efficiency was analyzed. [Conclusion]It was siguificative to warn the strongly rainfall weather and artificial rainfall by analyzing the characteristics of water vapor content and precipitation efficiency.

关 键 词：液态水含量 汽态水含量 降水效率 人工增雨 

分 类 号：S161.6[农业科学—农业气象学]