| 2003年天气气候异常灾害机理的定量分析Ⅰ——夏季淮河流域洪涝和南方酷暑 |
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| 引用本文： | 陈桂兴,魏清,黎伟标,袁卓建,简茂球.2003年天气气候异常灾害机理的定量分析Ⅰ——夏季淮河流域洪涝和南方酷暑[J].热带气象学报,2005,21(1):44-54. |
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| 作者姓名： | 陈桂兴 魏清 黎伟标 袁卓建 简茂球 |
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| 作者单位： | 1. 广东省气象台,广东,广州,510080;中山大学大气科学系/季风与环境研究中心,广东,广州,510275
2. 中山大学大气科学系/季风与环境研究中心,广东,广州,510275 |
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| 基金项目： | "山东省中尺度数值预报系统的建立及应用"课题资助 |
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| 摘 要： | 利用PSU／NCAR MM5V3非静力数值模式对1999年8月11～12日由变性台风引发的山东特大暴雨过程进行了较为成功的数值模拟。用模式输出资料,根据位涡理论探讨了这次特大暴雨天气发生、发展的动力学机制。结果表明：西风带弱冷空气侵入台风环流,触发不稳定能量释放是这次特大暴雨形成的重要原因;应用位涡守恒原理能较好地解释特大暴雨和中尺度低涡发生发展的原因,对流层高层位涡扰动是影响中尺度低涡和特大暴雨发生发展的重要因素;345K湿等熵面上风场和气压场的分布揭示了东南暖湿空气沿等熵面爬升与扩散的冷空气相遇,对流强烈发展,产生特大暴雨的物理机制。
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| 关 键 词： | 特大暴雨 数值模拟 位涡场分析 湿等熵面 |
| 文章编号： | 1004-4965(2005)01-0033-11 |
| 收稿时间： | 2003/11/3 0:00:00 |
| 修稿时间： | 2003年11月21 |
POTENTIAL VORTICITY ANALYSIS OF AN TORRENTIAL RAIN TRIGGRED BY A NEUTERCANE IN SHANDONG PROVINCE |
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| CHEN Gui-xing,WEI Qing,LI Wei-biao,YUAN Zhuo-jian and JIAN Mao-qiu.POTENTIAL VORTICITY ANALYSIS OF AN TORRENTIAL RAIN TRIGGRED BY A NEUTERCANE IN SHANDONG PROVINCE[J].Journal of Tropical Meteorology,2005,21(1):44-54. |
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| Authors: | CHEN Gui-xing WEI Qing LI Wei-biao YUAN Zhuo-jian and JIAN Mao-qiu |
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| Institution: | Guangdong Provincial Meteorological Obseruatory, Guangzhou 510080, China;Department of Atmospheric Science/Research Center for Monsoon and Environment, Zhongshan University, Guangzhou 510275, China;Department of Atmospheric Science/Research Center for Monsoon and Environment, Zhongshan University, Guangzhou 510275, China;Department of Atmospheric Science/Research Center for Monsoon and Environment, Zhongshan University, Guangzhou 510275, China;Department of Atmospheric Science/Research Center for Monsoon and Environment, Zhongshan University, Guangzhou 510275, China;Department of Atmospheric Science/Research Center for Monsoon and Environment, Zhongshan University, Guangzhou 510275, China |
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| Abstract: | By using the numerical model MM5V3,a successful simulation was made for a torrential rain in Shandong province triggered by a neutercane during 11th to 12th in August 1999. Using simulated information and the theory of potential vorticity (PV), the dynami |
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| Keywords: | Torrential rain numerical simulation analysis of potential vorticity isentropic surface |
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