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THE NUMERICAL STUDY ON THE RELATION BETWEEN SYMMETRICAL INSTABILITY AND THE SCALE OF INITIAL DISTURBANCE
Author(s): 
Pages: 81-89
Year: Issue:  1
Journal: JOURNAL OF TROPICAL METEOROLOGY

Keyword:  对称不稳定初始扰动尺度倾斜环流;
Abstract: 利用一个二维非弹性非静力的数值模式,讨论了初始扰动的尺度对于对称不稳定发展的影响.结果表明:虽然对称不稳定是β-中尺度的不稳定,但其不一定必须由β-中尺度的扰动来激发;由不同水平尺度的扰动所激发的倾斜环流有不同的特点;对称不稳定倾斜环流可能存在最小临界尺度;对称不稳定的发展存在最优扰动水平尺度,而扰动的垂直尺度对于对称不稳定的发展影响不大.
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