几种ω诊断模式的比较 |
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引用本文: | 赵瑞星,陶诗言.几种ω诊断模式的比较[J].应用气象学报,1990,1(2):315-141. |
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作者姓名: | 赵瑞星 陶诗言 |
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作者单位: | 1.中国科学院大气物理研究所,中国科学院大气物理研究所 总参气象局 |
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摘 要: | 本文分别讨论了求解ω场的三种模式:多层非线性ω诊断模式(模式A),非绝热ω诊断模式(模式B),中-α尺度ω诊断模式(模式C),并应用于一次梅雨锋暴雨过程的诊断,比较了它们的差异。结果表明,在进行中尺度ω诊断中最好使用模式C,也可使用模式A,且由两者分别得到的ω场差异不大。一般不用模式B,由于模式B计算量小,如果精度要求不高也可使用模式B。
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The Comparison Among Several ω–diagnostic Models |
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Affiliation: | (Institute of Atmospheric Physics, Academia Sinica) |
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Abstract: | In this paper, three models which are used to solve theω–field are discussed respectively. The model A is a multi-layer nonlinearω–diagnostic models, model B is a diabatic one and model C is a meso– scale one. They are applied to diagnose a mei-yu front heavy rain process. The differences from each other are analysed. The results show that the model C or model A is better for diagnosing the mesoscaleω field and the difference between twoω fields obtained from the two models is small. Model B is not generally used, but it can be used if the precision requirements are not high in order to save the calculation amount |
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