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中文摘要: 多普勒雷达探测东北冷涡具有一定的径向速度特征：应用蓝金(Rankine)模式进行数值模拟，结果表明，其模拟的多普勒速度分布特征与多普勒雷达实际探测冷涡的特征极其相似：根据多普勒径向速度特征确定冷涡中心，进而应用不同时刻资料确定冷涡的移动路径，对实际业务有很好的应用价值。
中文关键词: 东北冷涡，冷涡中心，多普勒径向速度，数值模拟，蓝金模式
Abstract:Some obvious characters of Doppler radial velocity are found when Doppler radar detected the northeast cold vortex. It is simulated with the Rankine model. The result shows that the numerical model image of the northeast cold vortex is very similar to that of the Doppler radar. It is useful for forecaster that the center of the northeast cold vortex and its moving pathway will be identified according to the Doppler velocity.
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基金项目:国家自然科学基金40475017项目，江苏省科技厅BS2003054项目资助
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引用文本：
刘敏,汤达章,胡志群,梁明珠,王新国,2005.东北冷涡的多普勒雷达资料特征分析[J].气象,31(6):35-38.
,2005.Analysis of Doppler Radar Data Characteristic of Northeast Cold Vortex[J].Meteor Mon,31(6):35-38.
刘敏,汤达章,胡志群,梁明珠,王新国,2005.东北冷涡的多普勒雷达资料特征分析[J].气象,31(6):35-38.
,2005.Analysis of Doppler Radar Data Characteristic of Northeast Cold Vortex[J].Meteor Mon,31(6):35-38.