| 塔额盆地一次强对流天气过程分析 |
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| 引用本文： | 曾华,曾伟,毛力达.塔额盆地一次强对流天气过程分析[J].安徽农业科学,2011,39(26):16117-16119. |
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| 作者姓名： | 曾华 曾伟 毛力达 |
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| 作者单位： | 新疆塔城地区气象局,新疆塔城,834700 |
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| 摘 要： | 利用塔城地区人工影响天气雷达站的探测资料以及Micaps系统提供的欧洲数值预报中心、T213物理量场资料、塔城站高空探测实况资料,对2010年6月10日发生在塔额盆地的一次强对流天气过程进行了分析。结果表明,前期高温天气为强对流天气的发生提供了启动机制;高空有强的冷平流,中低层为暖平流,上冷下暖,且高低空温差达33℃;水汽呈上干下湿型分布,中低层湿度明显好于高层,K指数高达30℃以上,沙氏指数降至负值,具备强对流天气发生发展的3个基本条件。此次强对流天气过程的冰雹云属于多单体雹云,降雹强度为软雹型,且过程持续时间长,期间共有4个对流系统分为4个阶段过境,并以4条路径分别影响塔额盆地。山区是塔额盆地雷暴、冰雹等强对流天气的高发区、频发区,也是人工防雹重点区域。经实际工作验证塔额盆地人工防雹作业的雷达回波指标为云体回波强度达到或超过40 dBz、雹云回波顶高达到或超过6000 m、40 dBz强中心回波突破-6℃层高度。
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| 关 键 词： | 塔额盆地 强对流天气 过程分析 |
Analysis on a Strong Convective Weather Process in Tacheng-Emin Basin |
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| ZENG Hua et al.Analysis on a Strong Convective Weather Process in Tacheng-Emin Basin[J].Journal of Anhui Agricultural Sciences,2011,39(26):16117-16119. |
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| Authors: | ZENG Hua |
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| Institution: | ZENG Hua et al(Tacheng Meteorological Bureau,Tacheng,Xinjiang 834700) |
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| Abstract: | According to the Tacheng weather radar detection data,European numerical forecast center provided by Micaps,T213 physical field data and the upper air sounding station data,a strong convective weather process occurred on June 10,2010 in Tacheng-Emin Basin was analyzed.As indicated by the results,The early hot weather provided a trigger mechanism for the occurrence of severe convective weather,strong cold advection was in high altitude,while the warm advection was in the lower altitude,warm under the cold,an... |
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| Keywords: | Tacheng-Emin Basin Strong convective weather Process analysis |
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