| 强对流云新概念在积云人工增雨作业中的运用 |
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| 引用本文： | 贾惠珍,寇书盈,孟辉,王兆宇,秦凤芝.强对流云新概念在积云人工增雨作业中的运用[J].气象科技,2005(Z1). |
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| 作者姓名： | 贾惠珍 寇书盈 孟辉 王兆宇 秦凤芝 |
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| 作者单位： | 天津市气象台 天津市人工影响天气办公室 天津市人工影响天气办公室 天津 |
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| 基金项目： | 河北省“十五”重点科技攻关课题“火箭人工增雨作业条件与关键技术研究”(03220602D)，天津市科技攻关培育项目“智能化人工增雨技术研究”(033122011)共同资助 |
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| 摘 要： | 在对强对流(积云)增雨作业中,引用防雹新概念方法是利用多普勒雷达不同仰角的反射率(R)图及反射率剖面(RCS)图、径向速度剖面(VCS)图等资料,对强对流云流场特征进行定性分析,判定其主位置,通过主入流区位置和态势,确定“0”线的类型,给出增雨作业的时机和部位。用这一新概念,结合天津地区积云增雨的实际情况,在2003~2005年期间进行了应用。当流场、温度场和水凝物粒子场适当配置时,会形成大量降水粒子的集中累积,产生阵性暴雨。
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| 关 键 词： | 人工增雨 流场特征 “0”线 “穴道” |
Application of New Concept for Convective Clouds to Rain Enhancement |
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| Jia Huizhen Kou Shuying Meng Hui Wang Zhaoyu Qin Fengzhi.Application of New Concept for Convective Clouds to Rain Enhancement[J].Meteorological Science and Technology,2005(Z1). |
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| Authors: | Jia Huizhen Kou Shuying Meng Hui Wang Zhaoyu Qin Fengzhi |
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| Institution: | Jia Huizhen~1 Kou Shuying~2 Meng Hui~2 Wang Zhaoyu~2 Qin Fengzhi~2 |
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| Abstract: | The qualitative analysis of the flow-field characteristics of convective clouds is made by using Doppler radar products such as reflectivities at different elevations and reflectivity cross-section,velocity cross-section,etc.,according to the new concept of cave channel in weather modification.Based on the results,the type of the zero line is determined by means of the position and state of the main influx area,so to determine the proper position and time for rain enhancement.According to the new concept,application experiments were conducted in a cumulus rain enhancement operations in Tianjin from 2003 to 2005. The results indicate that there would be accumulation of a large number of precipitation particles so to result in showers when there exists appropriate collocation of the flow field,temperature field,and hydrometeor field |
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| Keywords: | hail suppression characteristic of flow field zero line cave channel |
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