| 2011年4月17日广东强对流天气过程分析 |
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| 引用本文： | 张涛,方翀,朱文剑,章国材,周庆亮.2011年4月17日广东强对流天气过程分析[J].气象,2012,38(7):814-818. |
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| 作者姓名： | 张涛 方翀 朱文剑 章国材 周庆亮 |
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| 作者单位： | 国家气象中心,北京,100081 |
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| 基金项目： | 公益性行业（气象）科研专项（GYHY201006005和GYHY200906003）及中央气象台强对流团队共同资助 |
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| 摘 要： | 利用地面和高空观测、卫星、雷达和闪电及自动站资料对2011年4月1 7日出现在广东省的强对流天气的背景和演变进行了分析和总结,本次强对流过程出现了短时强降水、雷雨大风和冰雹等强对流天气,具有风力强、中尺度强风暴系统明显、局地性强和灾情严重等特点。分析表明,地面锋面抬升是本次强对流天气发生的主要触发机制,珠三角地区的地形平坦、广东中层的干急流以及较大的垂直风切变可能是强风暴系统发展和维持的主要因素。最后,本文也分析了当时的主观预报思路并提出了一些思考和总结。
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| 关 键 词： | 短时强降水 雷雨大风 冰雹 主观预报 强对流天气 |
| 收稿时间： | 2012/1/18 0:00:00 |
| 修稿时间： | 5/4/2012 12:00:00 AM |
Analysis of the 17 April 2011 Severe Convective Weather in Guangdong |
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| ZHANG Tao,FANG Chong,ZHU Wenjian,ZHANG Guocai and ZHOU Qingliang.Analysis of the 17 April 2011 Severe Convective Weather in Guangdong[J].Meteorological Monthly,2012,38(7):814-818. |
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| Authors: | ZHANG Tao FANG Chong ZHU Wenjian ZHANG Guocai and ZHOU Qingliang |
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| Institution: | National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081;National Meteorological Centre, Beijing 100081 |
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| Abstract: | Using surface observation, upper air sounding, satellite, Doppler radar and lightning data, synoptic scale environmental conditions and detailed mesoscale development analysis are undertaken on the severe convective system over Guangdong in the morning of April 17, 2011. Short time heavy rain, hail and squall were detected in this convective system, and results show that, the trigger of severe convective storms is the cold front, and meanwhile the local topography of the Pearl River Delta, mid level jet over Guangdong and large wind shear are considerably important in maintaining and developing of the storm. In the last, analysis and summary of subjective forecasting in this weather system are also given. |
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| Keywords: | short time heavy rain thunderstorm and gale hail subjective forecasting severe convective weather |
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