| 水平离散网格与大气运动 |
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| 作者姓名： | LIU Yudi WANG Bin JI Zhongzhen |
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| 作者单位： | [1]InstituteofMeteorology,PLAUniversityofSciencesandEngineering,Nanjing211101 [2]LASG,InstituteofAtmosphericPhysics,ChineseAcademyofSciences,Beijing100029 |
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| 基金项目： | This work was sponsored by the program"Major Directions of Renewed Research Lines, Chinese Academy of Sciences(KZCX2208)". |
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| 摘 要： | 从线性浅水方程组出发,在Arakawa A-E网格和z网格上,从频率和群速方面讨论了这六种网格对大气中的两种重要的波动：惯性重力波和Rossby波的描述能力。结果表明：C、z、E网格比其它网格产生的歪曲都要小。
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| 关 键 词： | 水平离散网格 大气运动 线性浅水方程组 频率 群速 惯性重力波 Rossby波 |
Research on Atmospheric Motion in Horizontal Discrete Grids |
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| LIU Yudi,WANG Bin,JI Zhongzhen.Research on Atmospheric Motion in Horizontal Discrete Grids[J].Advances in Atmospheric Sciences,2003,20(1):139-148. |
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| Authors: | Yudi Liu Bin Wang Zhongzhen Ji |
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| Institution: | LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Institute of Meteorology, PLA University of Sciences and Engineering, Nanjing 211101,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Starting from the linear shallow-water equations and using Arakawa A-E and Z grids, a study is madeof inertia-gravitational and Rossby waves in the six grids from the perspectives of frequency and groupvelocity. Results indicate that grids C, Z, and E thereof give smaller distortion compared to the others. |
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| Keywords: | grid dispersion property Rossby wave inertia-gravitational wave group velocity |
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