| 可用于城市空气污染预报的嵌套气象模式系统 |
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| 作者姓名： | 鞠丽霞 雷孝恩 韩志伟 |
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| 作者单位： | 中国科学院大气物理研究所, 北京100029 |
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| 基金项目： | 国家自然科学基金(10275037);中国博士后科学基金(2002032169);高等学校博士学科点专项科研基金(200210055012)资助课题 |
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| 摘 要： | 基于区域大气模拟系统,采用网格嵌套方法,发展了由区域尺度气象模式 (R αM )和城市尺度气象模式 (C βM )组成的嵌套模式预报系统,为空气污染预报提供必需的气象要素场。共进行了 5组预报实验,并分别与对应区域和城市尺度的两类静力平衡预报模式 :Eta模式 (区域尺度 )和M βM (城市尺度 )的预报结果进行了比较研究。结果表明,R αM和C βM预报结果更能准确合理地反映天气系统的实际变化规律,其预报效果明显好于Eta模式和M βM。建立的嵌套模式预报系统可为空气污染业务预报提供一个好的工作平台.
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| 关 键 词： | 空气污染预报 网格嵌套 局地环流 |
| 收稿时间： | 2002-09-26 |
Nested Meteorological Model System for Air Pollution Prediction |
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| Authors: | Ju Lixia Lei Xiaoen Han Zhiwei |
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| Institution: | Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | Based on the Regional Atmospheric Modeling System and by means of Grid Nesting technique, anested numerical forecasting model system, the City-scale Meteorolog y Model(C-βM)nested to the Regional- scale Meteorology Model(R-αM), has been developed, w hich can supply meteo rology data for air pollution forecast.Comparisons betw een five practical fo recast results f rom R-αM and C-βM and two corresponding outputs of hydrostatic models ———Eta model (only regional-scale forecasting model)and M-βM (only cityscale forecasting model)are made.The result s show that the forecast made by R-αM and C-βM can more accurately reflect the evolution rules of the practical synoptic system than those of Eta model and M-βM.The former two model-predicted results are both more reasonable and bet ter than those of Etamodel and M-βM apparently.The nested model system supplies a good w ork-platform for air pollution operational prediction |
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| Keywords: | air pollution forecast grid nesting local circulation |
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