| 石河子地区三次冰雹天气过程的综合分析 |
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| 引用本文： | 魏勇.石河子地区三次冰雹天气过程的综合分析[J].新疆气象,2013,7(1):21-27. |
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| 作者姓名： | 魏勇 |
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| 作者单位： | 石河子气象局 |
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| 基金项目： | 基金项目:国家公益性行业(气象)科研专项《沙漠及周边地区灾害性天气监测预报警报技术》, |
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| 摘 要： | 选取春季发生在新疆石河子地区沙漠边缘的3次冰雹天气过程,应用常规观测资料并结合雷达回波资料,从天气形势、物理量场和雷达回波演变特征等几方面进行了综合分析。结果表明:3次降雹过程都发生在典型的高空槽型的冰雹环流背景形势下,较好的对流不稳定条件、水汽条件和较强的垂直风切变促使冰雹等强对流天气过程发生发展。多普勒雷达能很好地监测中尺度天气系统的发展演变过程,回波强度和回波顶高度的变化、速度对和逆风区的出现、垂直累积液态含水量(VIL)增加以及风暴跟踪信息(STI)预警等都对冰雹天气的出现具有指示意义,对今后的防雹减灾工作有较好的应用价值。
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| 关 键 词： | 冰雹 石河子 环境场 雷达产品 |
| 收稿时间： | 2011/10/27 0:00:00 |
| 修稿时间： | 2012/3/28 0:00:00 |
The Composite Analysis of Three Hailstone Weather Happened At The Edge Of The Desert Of Shihezi Area In Xinjiang In Spring |
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| weiyong.The Composite Analysis of Three Hailstone Weather Happened At The Edge Of The Desert Of Shihezi Area In Xinjiang In Spring[J].Bimonthly of Xinjiang Meteorology,2013,7(1):21-27. |
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| Authors: | weiyong |
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| Institution: | Shihezi Meteorological Burean |
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| Abstract: | Hail events occurred in the edge of the desert of shihezi area in Xinjiang on 2 May 2010, 23 May 2010, 1 May 2010, respectively, are analyzed by means of the conventional observation data and radar echo data to analyze compositely the three hail events from the aspects of weather situation, physical vector fields, and evolution features of radar echoes. The results show that the three hailing processes occur under the typical upper air trough hailing circulation background respectively.Favorable hydrometer conditions, convective instability conditions and strong vertical wind shear promote the generationg and development of strong convection synoptic processes.The findings conclude that Doppler radar can properly monitor and measure the development and evolution processes of the mesoscale weather systems;the variation of echo intensity,echo top heights,wind speed and adverse wind region,VIL (Vertical Integration of Liquid water) and STI(storm track information) have preferable application value for prevent hail and abate disaster in the future. |
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| Keywords: | hail environment field radar product |
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