| 新一代天气雷达中气旋产品特征值统计和个例分析 |
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| 引用本文： | 方翀,郑媛媛.新一代天气雷达中气旋产品特征值统计和个例分析[J].气象,2007,33(11):16-20. |
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| 作者姓名： | 方翀 郑媛媛 |
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| 作者单位： | 1. 南京大学大气科学系,210093;安徽省气象台
2. 安徽省气象台 |
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| 基金项目： | 国家自然科学基金;安徽省科技攻关项目;中国气象局推广项目 |
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| 摘 要： | 利用合肥新一代天气雷达从2001年至2005年的中气旋产品,对中气旋产生的时间、空间和各种特征值进行相关统计分析,发现持续时间在3个体扫以上的中气旋与雷雨大风和龙卷有很好的对应关系,通过对典型强风过程分析,得出了底高、顶高和最强切变高度变化、最强切变与灾害性天气发生的对应关系,为预报员及时准确预报雷雨大风、龙卷提供参考依据。
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| 关 键 词： | 中气旋 底高 顶高 最强切变 强对流天气 |
| 收稿时间： | 2007/4/26 0:00:00 |
| 修稿时间： | 2007-04-26 |
The Analysis of Mesocyclone Product from the Doppler Weather Radar |
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| Fang Chong and Zheng Yuanyuan.The Analysis of Mesocyclone Product from the Doppler Weather Radar[J].Meteorological Monthly,2007,33(11):16-20. |
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| Authors: | Fang Chong and Zheng Yuanyuan |
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| Institution: | 1. Department of Atmospheric Science, Nanjing University, 210093; 2. Anhui Meteorological Observatory |
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| Abstract: | By using the Vmax mesocyclone products of new generation radar of Hefei, the occurrence time, spatial distribution and a variety of characteristic values were statistically analyzed. It is discovered that the Vmax meso cyclone which lasts more than three volume-scannings is well corresponds to the thunderstorm and gale. By analyzing the typical processes of gale, the relationship of the variations in the height of echo base, echo top and severely shear with the occurrence of disaster weather was derived. It is valuable to the operator to make a forecast of thunderstorm and gale timely and accurately. |
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| Keywords: | vmax-mesocyclone height of the base height of the top severely shear |
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