| 陕西2011年7月连续强对流天气成因及特征分析 |
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| 引用本文： | 孟妙志,韩 洁,王仲文,庞 翻,高菊霞.陕西2011年7月连续强对流天气成因及特征分析[J].陕西气象,2013(4):1-6. |
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| 作者姓名： | 孟妙志 韩 洁 王仲文 庞 翻 高菊霞 |
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| 作者单位： | 临汾市气象局,山西lI盘汾041000 |
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| 摘 要： | 本文利用自动站观测资料、NCEP／NCAR再分析资料及多普勒雷达资料，针对2013年7月12日-13日临汾地区暴雨天气过程，从天气背景、主要影响系统、物理量场以及雷达图像特征等方面进行了分析。结果表明：此次暴雨天气过程主要是由于副热带高压边缘的暖湿气流与东路南下的冷空气交汇，低层暖湿切变以及强的不稳定层结产生的；高空急流的维持及低层辐合、高层辐散的流场配置，为暴雨的产生提供了有利的条件；在雷达反射率图中，暴雨和大暴雨落区强回波区相对应。
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| 关 键 词： | 暴雨 背景与系统 物理量场 雷达回波 分析 |
Analysis on the Regional Rainstorm Occurred in July 12,2013 in Linfen City |
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| Wei Tian,Dai Youxue,Zhang Suqin,Ding Heng.Analysis on the Regional Rainstorm Occurred in July 12,2013 in Linfen City[J].Journal of Shaanxi Meteorology,2013(4):1-6. |
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| Authors: | Wei Tian Dai Youxue Zhang Suqin Ding Heng |
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| Institution: | ( Linfeng Meteorological Office, Linfeng 041000 ) |
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| Abstract: | Based on the automatic meteorological observing station data, NCEP/NCAR reanalyzed data and Doppler radar data, the rainstorm occurred in July 12, 2013 in Linfen has been analyzed from the weather background, main effect systems, that, the convergence of cold air phy from sical quantity fields and the characters of the radar images. The results showed east and warm air near the subtropical high, the low-level shear line and the strong unstable stratification were the main causes of the rainstorm. The maintaining of the upper jet stream and the flow field configuration of convergence in lower level and divergence in higher level provided favorable conditions for the rainstorm. And from the radar reflectivity map, the strong heavy rainstorm. echo areas were corresponding to the rainstorm and the |
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