| 丰镇市春季一次明显的降水天气过程分析 |
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| 引用本文： | 刘建梅,包福祥,高晶.丰镇市春季一次明显的降水天气过程分析[J].内蒙古气象,2012(5):44-45. |
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| 作者姓名： | 刘建梅 包福祥 高晶 |
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| 作者单位： | 1. 丰镇市气象局,内蒙古丰镇,012100
2. 内蒙古气候中心,内蒙古呼和浩特,010051 |
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| 摘 要： | 利用天气预报业务中天气环流形势场和有关物理量等资料．对丰镇市2010年4月20-22日出现的一次明显降水天气过程进行分析。分析结果表明：纬向环流不断发展并在贝加尔湖横槽和偏南气流配合下，该区域存在明显的风场切变，对流层中下部又有大量水汽输送，加之地面倒槽的加深，气流辐合系统发展所需能量得到补允，湿度较大的空气垂直上升运动维持时间长，为这次降水过程提供有利的环境和条件。
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| 关 键 词： | 大尺度环流形势 风场切变 地面倒槽 |
Synoptic Process Analysis on an Obvious Precipitation in the Spring in Fengzhen City |
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| Authors: | Liu Jianmei ;Bao Fuxiang ;Gao Jing |
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| Institution: | 1.Fengzhen Meteorological Bureau,Inner Mongolia Fengzhen 012100;2.Inner Mongolia Climate Centre,Inner Mongolia Hohht 010051) |
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| Abstract: | Using the situation field of general atmospheric circulation and related physical quantity data of weather forecasting oper- ation, a obvious precipitation weather process was analyzed on April 20-22,2010 in Fengzhen. The results showed that zonal circula- tion continuously developed, there was obviously shear of wind field in this area aL the Baikal Lake horizontal trough and the south current match with under. Water vapor continuously transported in the middle and lower troposphere and ground inverted trough be- came deeper. The energy needed by the system of the convergence of air current was added. The vertical ascending motion of the wet air sustained time lengthways. All of them provided good conditions for this precipitation. |
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| Keywords: | large-scale circulation wind field shear ground inverted trough |
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