| 2012年8月南昌地区一次局地短时大暴雨过程诊断分析 |
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| 引用本文： | 阙志萍,龙余良,邓德文,马中元.2012年8月南昌地区一次局地短时大暴雨过程诊断分析[J].气象与减灾研究,2013(4):26-31. |
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| 作者姓名： | 阙志萍 龙余良 邓德文 马中元 |
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| 作者单位： | [1]江西省气象服务中心,江西南昌330046 [2]江西省气象科学研究所,江西南昌330046 |
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| 基金项目： | 2013年度中国气象局预报员专项（编号：CMAYBY2013-036） |
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| 摘 要： | 利用常规气象资料、GPS水汽资料、雷达资料,对南昌地区2012年8月21日大暴雨过程进行综合分析。结果表明,此次局地大暴雨没有强的水汽输送,也没有明显的辐合辐散,不属于江西典型的暴雨过程,而是具有明显的中尺度特征。南昌地区前期低层高温高湿积累了大量的不稳定能量,中低层弱冷空气的侵入及地面中气旋的生成,触发了不稳定能量的释放,从而导致了暴雨天气的发生。
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| 关 键 词： | 局地大暴雨 中尺度特征 不稳定能量。 |
THE DIAGNOSTIC ANALYSIS ON A LOCAL SHORT-TIME HEAVY RAINSTORM IN NANCHANG |
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| Que Zhiping,Long Yuliang,Deng Dewen,Ma Zhongyuan.THE DIAGNOSTIC ANALYSIS ON A LOCAL SHORT-TIME HEAVY RAINSTORM IN NANCHANG[J].Meteorology and Disaster Reduction Research,2013(4):26-31. |
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| Authors: | Que Zhiping Long Yuliang Deng Dewen Ma Zhongyuan |
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| Institution: | 1. Meteorological Service Center of Jiangxi, Nanchang 330046, China ;2. Jiangxi Provincial Meteorological Research Institute, Nanchang 330046, China) |
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| Abstract: | Based on conventional observational data, GPS PW data, Doppler radar data,a local short-time heavy rainstorm occurred in Nanchang on August 21 2012 was analyzed. The conclusions are as follows：during the rainfall event, there were no strong vapor transport and convergence or divergence, however, there presented obvious mesoscale features. The high temperature and high humidity at low layer accumulated a large amount of unstable energy, and the weak cold air intrusion triggered the release of unstable energy, which led to the occurrence of rainstorm weather. |
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| Keywords: | Local torrential rain Mesoscale Unstable energy |
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