水平变量配置对地转演变模拟的影响

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IMPACT OF HORIZONTAL GRID ON GEOSTROPHIC EVOLUTION SIMULATING

1.
Nanjing Meterological College, Nanjing 210044, China;Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China
2.
Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China

摘要: 从描述准地转、β-平面近似下的Rossby波方程组出发,在Arakawa A～E网格上,从频率和群速方面讨论了这五种网格的计算频散性。结果表明:D、C网格比其它网格对Rossby波产生的歪曲都要小。
- 网格 /
- 频散特征 /
- Rossby波 /
- 群速
Abstract: In the paper,the computational dispersion properties of Arakawa A～E for approximation of the quasi-geostrophic,beta plane approximative equations,are analyzed in terms of frequency and group velocity characteristics. It is shown that D grids and C grids have the best dispersion characteristics among all grids considered.
- grid /
- Rossby wave /
- dispersion equation /
- group velocity

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[3]	刘宇迪,桂祁军,李昕东,等.水平网格计算频散性的研究[J].应用气象学报,2001,12:140-149.