| 雷达定量测量降水 |
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| 引用本文： | 白先达,王艳兰,孙莹.雷达定量测量降水[J].气象科技,2011,39(1):61-65. |
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| 作者姓名： | 白先达 王艳兰 孙莹 |
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| 作者单位： | 广西桂林市气象局,桂林,541001 |
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| 基金项目： | 国家自然科学基金项目(40865001)资助 |
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| 摘 要： | 根据桂林新一代天气雷达实际定义混合扫捕面,采用降水回波强度分级,用最优化方法统计Z-I关系中的A、b系数,定量测量降水能力得到了明显的提高,比用天气系统分类确立的Z-I关系准确率提高20%,比直接应用美国提供的Z-J关系准确率提高近40%.利用回波强度分级确定降水定量关系操作方便,容易自动变更定量估测降水的关系及实现降...
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| 关 键 词： | 天气雷达 定量降水测量 Z-I关系 |
| 收稿时间： | 2009/8/24 0:00:00 |
| 修稿时间： | 2009/10/30 0:00:00 |
Radar Rainfall Estimates in Guilin |
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| Bai Xiand,Wang Yanlan and Sun Ying.Radar Rainfall Estimates in Guilin[J].Meteorological Science and Technology,2011,39(1):61-65. |
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| Authors: | Bai Xiand Wang Yanlan and Sun Ying |
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| Institution: | Bai Xianda Wang Yanlan Sun Ying(Guilin Meteorological Bureau,Guangxi Province,Guilin 541001) |
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| Abstract: | The XINRAD S/B radar was put to use after 2004 in Guilin,and some experiments on radar rainfall estimates were carried out.A mixing scanned plane was defined according to the actual situation of Guilin,by means of the graded radar echo intensity and the optimization method,the coefficients of A and b in Z-I relation are obtained.The capability of measuring rainfall quantitatively is improved obviously.The accuracy increased by 20% in use of our Z-I relation,compared with the method of weather system classif... |
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| Keywords: | weather radar quantitative rainfall estimate Z-I relation |
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