| “2002.6.30”滇中低涡暴雨的中尺度分析 |
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| 引用本文： | 郭荣芬,鲁亚斌.“2002.6.30”滇中低涡暴雨的中尺度分析[J].气象,2003,29(2):29-33. |
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| 作者姓名： | 郭荣芬 鲁亚斌 |
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| 作者单位： | 云南省气象台,昆明,650034 |
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| 基金项目： | 本文由云南省十五科技攻关2001 GN43项目资助. |
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| 摘 要： | 利用MICAPS常规资料和GMS卫星云图，3830—C多普勒雷达观测资料，对2002年6月30日发生于滇中地区的暴雨天气过程进行诊断和分析，发现暴雨过程由中低层低涡切变造成，暴雨区与垂直速度及涡度所表现的强烈上升区对应，并伴有高能高湿条件；同时卫星云图上有中尺度低涡云团发展。多普勒雷达回波资料分析表明，暴雨过程中出现了明显的中尺度系统，如中尺度辐合线、中尺度气旋、逆风区等，具有典型的对流型特征。
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| 关 键 词： | 暴雨 中尺度分析 天气过程分析 卫星云图 多普勒雷达 观测资料 雷达回波 |
A Case Analysis of Mesoscale Cold Vortex Heavy Rainfall in Central Yunnan Province |
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| Guo Rongfen,Lu Yabin.A Case Analysis of Mesoscale Cold Vortex Heavy Rainfall in Central Yunnan Province[J].Meteorological Monthly,2003,29(2):29-33. |
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| Authors: | Guo Rongfen Lu Yabin |
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| Abstract: | The cause of the heavy rainfall occurred in central Yunnan Province from June 30,2002 is analysed with the MICAPS data, GMS satellite images and the echo data of Doppler Weather Radar 3830 C.It is found that this heavy rainfall process is caused by cold vortex and mid low level shear. The heavy rainfall region is corresponding with the strong ascending region of vertical speed and vorticity, and accompanied with the high energy and high wet regions. There is a developing mesoscale cold vortex cloud cluster from the satellite image. Furthermore, the radar echoes show that some obvious mesoscale systems (for example: mesoscale convergence line, mesoscale cyclone, anti wind area, etc.) with typical convective characteristics occurred during this heavy rainfall process. |
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| Keywords: | cold vortex heavy rainfall mesoscale system cloud image Radar echo |
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