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气象:2005,31(11):47-51
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江西“4·12”降雹过程的多普勒雷达资料分析
(1.南京大学大气科学系,210093;2.江西省气象台)
Doppler Radar Data Analysis of “4.12” Hail Event in Jiangxi Province
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中文摘要: 通过分析江西省2003年4月12日降雹天气过程中,强对流天气发生前后的CINRAD-SA多普勒雷达资料的演变特征,归纳出强对流天气过程的相关特征,提出强对流天气临近预报的几个着眼点和指标。发现应用弓状回波、TBSS、“逆风区”、低层中尺度辐合线、垂直积分液态水含量(VIL)及冰雹指数的变化能有效地指导灾害性天气临近预报,并有一定的提前量。
Abstract:By using the Doppler radar data of the hail event April 12, 2003 in Jiangxi province, the development characteristics of severe convection weather are analyzed and several respects and indexes are put forward about nowcasting of severe convection weather. It's concluded that the bow echo, TBSS, adverse wind regions, low-layer mesoscale convergence line, VIL and the change of hail index can used for nowcasting of convectional weather.
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引用文本:
郭艳,应冬梅,刘冬梅,2005.江西“4·12”降雹过程的多普勒雷达资料分析[J].气象,31(11):47-51.
,2005.Doppler Radar Data Analysis of “4.12” Hail Event in Jiangxi Province[J].Meteor Mon,31(11):47-51.