| 一次消(减)雨试验过程风场特征及作业效果分析 |
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| 引用本文： | 盛日锋,王俊,陈西利,王庆,张洪生,卢培玉.一次消(减)雨试验过程风场特征及作业效果分析[J].气象科技,2010,38(Z1):78-82. |
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| 作者姓名： | 盛日锋 王俊 陈西利 王庆 张洪生 卢培玉 |
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| 作者单位： | 山东省人工影响天气办公室，济南 250031;山东省人工影响天气办公室，济南 250031;山东省人工影响天气办公室，济南 250031;山东省人工影响天气办公室，济南 250031;山东省人工影响天气办公室，济南 250031;山东省人工影响天气办公室，济南 250031 |
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| 基金项目： | 国家科技支撑计划课题“混合云人工增雨技术研究”(2006BAC12B02) 、山东省气象局重点课题(2008sdqxz15)、十一运会气象保障服务科研项目(qyhqx14，qyhqx21)资助 |
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| 摘 要： | 根据济南齐河多普勒雷达体扫资料,采用EVAP方法对山东2009年9月19—20日一次积层混合云降水进行风场反演,反演风场能细致地揭示本次降水过程中尺度风场的演变过程,清楚地给出了风场中尺度结构、辐合线的位置及二者演变特征。各个层次风场变化与常规探空观测的结果基本一致,降水过程前半段存在中尺度辐合线,后期随着冷空气加强南侵并完全控制了中低层,对应的地面降水也由强减弱并逐渐结束。由于反演风场能实时反映出中尺度辐合线的位置,有利于人工影响天气作业的时机及部位的选择。
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| 关 键 词： | 多普勒天气雷达 风场反演 辐合线 |
| 收稿时间： | 2010/7/15 0:00:00 |
| 修稿时间： | 2010/9/27 0:00:00 |
Characteristics of Mesoscale Wind Field during a Rain Reduction Experiment and Effectiveness Analysis |
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| Sheng Rifeng,Wang Jun,Chen Xili,Wang Qing,Zhang Hongsheng and Lu Peiyu.Characteristics of Mesoscale Wind Field during a Rain Reduction Experiment and Effectiveness Analysis[J].Meteorological Science and Technology,2010,38(Z1):78-82. |
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| Authors: | Sheng Rifeng Wang Jun Chen Xili Wang Qing Zhang Hongsheng and Lu Peiyu |
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| Institution: | Shandong Weather Modification Office, Jinan 250031;Shandong Weather Modification Office, Jinan 250031;Shandong Weather Modification Office, Jinan 250031;Shandong Weather Modification Office, Jinan 250031;Shandong Weather Modification Office, Jinan 250031;Shandong Weather Modification Office, Jinan 250031 |
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| Abstract: | The wind retrieval of a mixed cloud precipitation between 19 and 20 September in Shandong Province is conducted by using the EVAP method according to Doppler radar volume data at Qihe. The retrieved winds reveal the evolution details of this precipitation process, in particular the mesoscale wind structure, the location of a convergence line, and their evolution characteristics clearly. The results indicate that changes of winds at all levels accorded basically with the results of conventional radiosonde observations. In the first half period of the precipitation process, there existed a mesoscale convergence line, and in the later period, along with the cold air strengthening, southward invasion and fully controlling the underlying layers, precipitation weakened and ended gradually. The retrieved winds can reflect the position of the convergence line simultaneously, which are useful for the selection of time and position in weather modification. |
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| Keywords: | Doppler weather radar wind retrieval convergence line |
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