| 一次暴雨过程的动力诊断 |
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| 引用本文： | 吴启树,郑颖青,林金凎,赖绍钧,龚振彬.一次暴雨过程的动力诊断[J].气象科技,2010,38(1):21-25. |
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| 作者姓名： | 吴启树 郑颖青 林金凎 赖绍钧 龚振彬 |
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| 作者单位： | 福建省福州市气象局,福州,350014 |
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| 摘 要： | 应用常规观测资料及NCEP再分析资料,对2008年5月21日福建中部地区暴雨成因进行诊断分析。结果表明:此次强降水位于水汽通量散度平流项与散度项辐合配置较好区域;高层较强涡度平流促进福建中部地区上升运动;差动假相当位温平流增强大气不稳定度,促进垂直上升运动;低层水平运动锋生中心的位置和强度与未来6h降水中心位置和强度较为一致。
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| 关 键 词： | 暴雨 水汽通量散度 差动 假相当位温 平流 锋生 |
| 收稿时间： | 2008/12/8 0:00:00 |
| 修稿时间： | 2009/6/11 0:00:00 |
Dynamical Analysis of a Heavy Rain Process |
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| Wu Qishu,Zheng Yingqing,Lin Jingan,Lai Shaojun and Gong Zhenbin.Dynamical Analysis of a Heavy Rain Process[J].Meteorological Science and Technology,2010,38(1):21-25. |
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| Authors: | Wu Qishu Zheng Yingqing Lin Jingan Lai Shaojun and Gong Zhenbin |
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| Institution: | Wu Qishu Zheng Yingqing Lin Jingan Lai Shaojun Gong Zhenbin(Fuzhou Meteorological Bureau,Fujiang Province,Fuzhou 350014) |
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| Abstract: | By using the conventional observation and NCEP reanalysis data,a study is made to discuss the heavy rain took place in the central Fujian Province on 21 May 2008. The results indicate that the heavy rain took place in the area where the convergence of the divergence term and the advection term of the moisture flux divergence disposed well; the stronger vorticity advection at upper levels promoted the ascending movement; the stronger vertically differential thermal advection of pseudo-equivalent potential te... |
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| Keywords: | heavy rain moisture flux divergence differential thermal advection pseudo-equivalent potential temperature advection frontogenesis |
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