| 河北承德一次飑线过程的多普勒雷达资料分析 |
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| 引用本文： | 王宏,马凤莲,王万筠.河北承德一次飑线过程的多普勒雷达资料分析[J].甘肃气象,2009,27(1). |
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| 作者姓名： | 王宏 马凤莲 王万筠 |
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| 作者单位： | 王宏,马凤莲,WANG Hong,MA Fenglian(河北省承德市气象局,河北,承德,067000);王万筠,WANG Wanjun(天津市塘沽区气象局,天津,塘沽,300457)
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| 摘 要： | 利用河北省承德多普勒雷达的反射率因子、径向速度、垂直积分液态含水量(VIL)等产品,结合环流形势和自动站资料,对2008年6月25日发生在承德市境内的一次飑线天气过程进行了分析,初步探讨了飑线天气过程的多普勒雷达回波演变特征.分析结果表明:大风位于弓形飑线回波的凸起部位.负速度中心值逐渐增大到>27 m/s且逐渐靠近雷达,预示大风天气的出现.VIL值的剧减、跃增和持续高的ET与大风、冰雹等强对流天气有一定的对应关系.
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| 关 键 词： | 多普勒雷达 飑线 回波 |
Doppler Radar Data Analysis of a Squall Line Process in Chengde of Hebei Province |
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| WANG Hong,MA Fenglian,WANG Wanjun.Doppler Radar Data Analysis of a Squall Line Process in Chengde of Hebei Province[J].Gansu Meteorology,2009,27(1). |
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| Authors: | WANG Hong MA Fenglian WANG Wanjun |
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| Institution: | 1.Chengde Meteorological Bureau of Hebei Province;Chengde 067000;China;2.Tanggu Meteorological Bureau of Tianjin;Tanggu 300457;China |
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| Abstract: | By using the reflectivity,radial velocity,Vertically Integrating Liquid(VIL) Water Content and other products of Chengde Doppler radar,a squall line process happened in Chengde on 25 June 2008 was analyzed combining circulation situation and automatic weather station data.It was discussed how Doppler radar echoes of the squall line in Chengde evolved.The results show the strong wind locates in bulge spot of the bow squall line echo.The negative center value of radial velocity increased gradually then more t... |
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| Keywords: | Doppler radar squall line echo |
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