| 2009年6月一次南北双槽作用下的东北降水分析 |
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| 引用本文： | 李慧.2009年6月一次南北双槽作用下的东北降水分析[J].佳木斯教育学院学报,2012(4):366-367. |
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| 作者姓名： | 李慧 |
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| 作者单位： | 南京信息工程大学语言文化学院、公共管理学院 江苏南京210044 |
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| 摘 要： | 本文综合利用多种气象分析资料和降雨量资料,对2009年6月8日-11日我国东北地区一次大范围持续性降水进行研究。研究表明,本次降水过程发生前,东北亚地区处于南北双槽结构之间,随后北槽向赤道发展切断后形成东北冷涡。8日东北南部是对流降水,9日过渡为南部对流消亡,北部建立冷涡锋面降水。其中,8日辽宁的对流性天气,是南槽东移,中层辽东半岛从反气旋性气流转为气旋性气流,从辐合区变为辐散区;低层的辽东半岛从位于西南急流的平直中部,变为位于急流尾部的强辐合区;垂直方向,局限于中上层的上升运动,发展到整层上升,促发本次对流。
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| 关 键 词： | 槽 对流 冷涡 降水 |
On the northeast precipitation under the action of north-south double groove in June 2009 |
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| Li Hui.On the northeast precipitation under the action of north-south double groove in June 2009[J].Journal of Jiamusi Education Institute,2012(4):366-367. |
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| Authors: | Li Hui |
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| Institution: | Li Hui(Institute of Languages and Cultures,Public Management School,Nanjing University of Information Science and Technology,Nanjing Jiangsu,210044,China) |
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| Abstract: | This paper utilizes many kinds of meteorological data and precipitation data,to study wide-range continuous precipitation on June 8,2009-11 days of Northeast China.Research shows that,before the precipitation process occurs,northeast inferior the area between the double groove structure,then north to the equator after cutting groove development form the northeast cold vortex.Northeast is south of convective precipitation in eighth,transition to South convection demise in ninth,building cold frontal precipitation in north.Among them,the convective weather in Liaoning is south trough eastward,middle Liaodong peninsula from the cyclonic airflow to the cyclonic airflow,from the convergence zone to divergence region;low layer of the Liaodong peninsula is located in the southwest jet straight central,is located in the tail of the rapids of strong convergence zone;the vertical direction,confined in an upward motion,develop to the whole level,promoting the convection. |
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| Keywords: | groove convection cold vortex precipitation |
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