三维非均匀涡旋流上中尺度扰动的发展
THE DEVELOPMENT OF MESOSCALE DISTURBANCE IN THE THREE-D I MENSIONAL NONHOMOGENEOUS VORTEX
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摘要: 从适于研究深对流运动的柱坐标系非弹性近似(anelastic apptoximation)方程组出发,利用WKBJ方法导出了包含径向辐合辐散及垂直运动的、非梯度风平衡、非静力平衡、非轴对称三维非均匀时变涡旋基流上扰动的波作用量方程,并对中尺度扰动的发展作了定性讨论。Abstract: In this article, starting from the anelastic equations describing deep convection in cylindrical coordinates, the WKBJ method is used to discuss the stability of asymmetric three-dimensional nonhomogeneous vortex under the conditions of nonhydrostatic and non-equilibruim gradient wind. From the equation of wave action, the development of disturbance is qualitatively analysed.
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Key words:
- Nonhomogeneous vortex /
- Development of disturbance /
- WKBJ method
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