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大气科学  2005 

中尺度对流系统演变中的非线性对流对称不稳定

DOI: 10.3878/j.issn.1006-9895.2005.04.15

Keywords: 中尺度对流系统,非平衡动力学,非线性对流-对称不稳定

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Abstract:

应用ARPS(AdvancedRegionalPredictionSystem)模式用数值试验的方法分析了中尺度对流系统中非线性对流-对称不稳定的发展,结果表明,非线性对流-对称不稳定的发展过程首先是对流的发展,为对称不稳定的发展创造了条件,而对称不稳定发展的结果使对流组织化,环流加强,生命史增长,并且对流发展与对称不稳定的释放存在一个正反馈过程,从而给出了其中物理过程相互作用的概念模型.

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