| 一次高原低涡过程的数值模拟与结构特征分析 |
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| 引用本文： | 宋雯雯,李国平.一次高原低涡过程的数值模拟与结构特征分析[J].高原气象,2011,30(2):267-276. |
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| 作者姓名： | 宋雯雯 李国平 |
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| 作者单位： | 成都信息工程学院大气科学学院/高原大气与环境四川省重点实验室,四川成都,610225;中国气象科学研究院灾害天气国家重点实验室,北京,100081 |
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| 基金项目： | 国家自然科学基金项目(40875023); 灾害天气国家重点实验室开放课题(2009LASW-A01)共同资助 |
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| 摘 要： | 利用非静力中尺度数值模式MM5,模拟了2009年7月29～31日的一次高原低涡过程,结果表明,TBB卫星资料显示出在低涡发展过程中具有同热带气旋类低涡相似的涡眼结构.MM5模式能较好地模拟出低涡的降水落区、强度以及内部结构,正位涡区随着低涡的东移而东移.在动力结构上,低涡发展过程中,涡心处散度和涡度的变化不大,垂直速度...
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| 关 键 词： | 高原低涡 数值模拟 涡眼 位涡 相当位温 |
Numerical Simulation and Structure Characteristic Analysis of a Plateau Vortex Process |
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| SONG Wen-wen,LI Guo-ping.Numerical Simulation and Structure Characteristic Analysis of a Plateau Vortex Process[J].Plateau Meteorology,2011,30(2):267-276. |
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| Authors: | SONG Wen-wen LI Guo-ping |
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| Affiliation: | SONG Wen-wen1-2,LI Guo-ping1-2(1.College of Atmospheric Sciences,Chengdu University of Information Technology/The Key Laboratory of PlateauAtmosphere & Environment of Sichuan Province,Chengdu 610225,China,2.State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China) |
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| Abstract: | Using the nonhydrostatic mesoscale numerical model MM5,a Plateau vortex process occurring during 29~31 July 2009 was simulated and diagnosticly analyzed.The results show that the structure of vortex eye during the vortex development process which displayed by the TBB satellite data is similar to tropical cyclone-like vortices.The MM5 model has enough ability to simulate the precipitation area,precipitation intensity as well as inner structure of vortex,and the positive potential vorticity area move toward e... |
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| Keywords: | Plateau vortex Numerical simulation Vortex eye Potential vorticity Potential equivalent temperature |
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