| 格点同化对大气波导数值模拟的影响 |
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| 引用本文： | 成印河,朱凤芹,王湘文.格点同化对大气波导数值模拟的影响[J].广东海洋大学学报,2010,30(6). |
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| 作者姓名： | 成印河 朱凤芹 王湘文 |
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| 作者单位： | 广东海洋大学海洋与气象学院,广东,湛江,524088 |
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| 基金项目： | 广东海洋大学校选启动项目资助 |
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| 摘 要： | 利用NCEP再分析资料为背景场及常规的探空资料和地面资料,以2005年6月2日出现在黄海海域的大气波导为例,运用中尺度数值模式MM5,设计了2种初始场不同的数值模拟试验:1)NCEP资料;2)NCEP资料和常规探空资料。研究结果表明:格点同化能够改善大气波导的MM5数值模拟结果,提高MM5的大气波导参数模拟精度;在大气波导分布上,格点同化对陆地大气波导影响较大,对于海上的模拟区域分布几乎没有影响。
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| 关 键 词： | 大气波导 MM5模式 格点同化 |
The Influence of Data Assimilation on the Numerical Simulation of Atmospheric Ducts |
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| CHENG Yin-he,ZHU Feng-qin,WANG Xiang-wen.The Influence of Data Assimilation on the Numerical Simulation of Atmospheric Ducts[J].Journal of Zhanjiang Ocean University,2010,30(6). |
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| Authors: | CHENG Yin-he ZHU Feng-qin WANG Xiang-wen |
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| Abstract: | Two numerical tests to simulate the atmospheric ducts with MM5 model was designed by taking the atmospheric ducts occurred in Yellow sea from Jun 2 to Jun 3 of 2005 as an example.One of the tests is based on re-analyzed NCEP data,while the other based on re-analyzed NCEP data and routine sounding and ground data.The results showed that grid nudging influences the precision of data observed in the MM5 simulation of atmospheric ducts and exerts great influence on the land.However,the influence on the on sea could be slight. |
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| Keywords: | atmospheric ducts MM5 model grid nudging |
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