| 2009年7月20-22日牡丹江强降雨分析 |
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| 引用本文： | 宋涛,路平平,龙妍妍.2009年7月20-22日牡丹江强降雨分析[J].黑龙江气象,2012,29(1):10-12,36. |
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| 作者姓名： | 宋涛 路平平 龙妍妍 |
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| 作者单位： | 1. 牡丹江市气象局,黑龙江牡丹江,157000
2. 中国民用航空飞行学院,四川广汉,618307 |
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| 摘 要： | 利用地面、高空观测资料，分析了2009年7月20-22日牡丹江地区的强降雨天气形成原因。此次强降雨主要由东北冷涡配合低空急流共同作用产生，东北冷涡使大气低层辐合、高层辐散，其产生的抽气机效应使上升运动加强；低空急流为降雨提供了充沛的水汽输送。此次强降水，日本数值预报产品预报出了降水中心，与实况比较吻合。研究结果对提高东北冷涡影响下的牡丹江地区强降水预报具有一定指导作用。
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| 关 键 词： | 东北冷涡 低空急流 水汽输送 |
Analysis of a heavy precipitation happened during July 20-22,2009 in Mudanjiang |
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| SONG Tao,LU Ping-ping,LONG Yan-yan.Analysis of a heavy precipitation happened during July 20-22,2009 in Mudanjiang[J].Heilongjiang Meteorology,2012,29(1):10-12,36. |
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| Authors: | SONG Tao LU Ping-ping LONG Yan-yan |
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| Institution: | 1.Mudanjiang Meteorological Bureau,Heilongjiang Mudanjiang 157000;2.Civil Aviation Flight University of China,Sichuan Guanghan 618307) |
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| Abstract: | Analyzed the cause of a heavy precipitation happened during July 20-22,2009 in Mudanjiang with the ground and aerial observation data.It found that both the northeast cold vortex and low-level jet led to the precipitation.The northeast cold vortex made the atmosphere convergent in low level and divergent in high level,its suction effect can strengthen the ascending motion of the air and the low-level jet provided abundant water vapor to that precipitation at the same time.The result of research can play a guiding role to the forecast of precipitation in Mudanjiang which is caused by the northeast cold vortex.. |
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| Keywords: | northeast cold vortex low-level jet water vapor transportation |
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