Letter: Symmetric instability drastically changes upon inclusion of the full Coriolis force
Letter: Symmetric instability drastically changes upon inclusion of the full Coriolis force
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信件：包含完整科里奥利力后，对称不稳定性发生巨大变化
DOI：
10.1063/1.5031099
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发表时间：
2018
影响因子：
4.6
通讯作者：
V. Zeitlin
中科院分区：
文献类型：
--
作者：
V. Zeitlin
结果表明，经典的对称不稳定性急剧变化，如果通常被忽略的垂直分量的科里奥利力和垂直速度到其水平分量的贡献被考虑在内。这些“非传统”的影响是不同的流动与积极和消极的水平相对涡度。在第二种情况下，出现了一个临界值的理查森数，与不稳定性改变其字符across it.Major差异之间出现流体静力和非流体静力版本的不稳定性。结果表明，如果考虑通常被忽略的垂直分量的科里奥利力和垂直速度对水平分量的贡献，经典的对称不稳定性将发生剧烈的变化。这些“非传统”的影响是不同的流动与积极和消极的水平相对涡度。在第二种情况下，出现了一个临界值的理查森数，与不稳定性改变其字符across it.Major差异之间出现流体静力和非流体静力版本的不稳定性。所有这些特征在传统的近似中都是不存在的。
It is shown that the classical symmetric instability drastically changes, if the usually neglected vertical component of the Coriolis force and the contribution of the vertical velocity into its horizontal components are taken into account. The influence of these “non-traditional” terms is different for flows with positive and negative horizontal relative vorticities. A critical value of the Richardson number appears in the second case, with the instability changing its character across it. Major differences appear between hydrostatic and non-hydrostatic versions of the instability. All these features are absent in the traditional approximation.It is shown that the classical symmetric instability drastically changes, if the usually neglected vertical component of the Coriolis force and the contribution of the vertical velocity into its horizontal components are taken into account. The influence of these “non-traditional” terms is different for flows with positive and negative horizontal relative vorticities. A critical value of the Richardson number appears in the second case, with the instability changing its character across it. Major differences appear between hydrostatic and non-hydrostatic versions of the instability. All these features are absent in the traditional approximation.
影响因子：
3.2
作者：
Bachman, S. D.;Taylor, J. R.
通讯作者：
Taylor, J. R.