| 齐齐哈尔一次暴雨的螺旋度诊断分析 |
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| 引用本文： | 周显伟,祝玉梅,时刚.齐齐哈尔一次暴雨的螺旋度诊断分析[J].黑龙江气象,2010,27(2):1-4. |
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| 作者姓名： | 周显伟 祝玉梅 时刚 |
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| 作者单位： | 齐齐哈尔市气象局,黑龙江,齐齐哈尔,161006 |
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| 摘 要： | 本文利用NCEP再分析资料和实测资料对2009年8月19-20日齐齐哈尔暴雨过程进行垂直螺旋度诊断分析,分别对垂直螺旋度水平分布和垂直分布特征进行分析,求出垂直螺旋度在预报暴雨中的贡献。结果表明:根据垂直螺旋度的水平分布特征,可以预报暴雨移动方向和影响区域;螺旋度的垂直分布可以表明气旋发展和降水强度不同阶段。
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| 关 键 词： | 诊断分析 暴雨 垂直螺旋度 |
A Rainstorm Helicity Diagnosis of Qiqihar |
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| ZHOU Xian-wei,Zhu Yu-mei,SHI Gang.A Rainstorm Helicity Diagnosis of Qiqihar[J].Heilongjiang Meteorology,2010,27(2):1-4. |
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| Authors: | ZHOU Xian-wei Zhu Yu-mei SHI Gang |
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| Institution: | 1.Qiqihar Municipal Meteorological Bureau,Hei Longjiang Qiqihar 161006) |
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| Abstract: | By using NCEP reanalysis data and the real time data in August 2009 during heavy rain 19-20 Qiqihar vertical helicity diagnosis,respectively,the level of vertical helicity distribution and vertical distribution characteristics of analysis,find the vertical helicity in the the contribution of heavy rain in the forecast.The results showed that： According to the level of the vertical distribution of helicity can forecast the direction of movement and impact of the storm area;the vertical distribution of helicity cyclone may indicate different stages of development. |
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| Keywords: | diagnostic analysis storm vertical helicity |
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