| 斜压大气中尺度横波扰动的发展 |
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| 引用本文： | 王东海,周晓平.斜压大气中尺度横波扰动的发展[J].大气科学,1994,18(1):61-71. |
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| 作者姓名： | 王东海 周晓平 |
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| 作者单位： | 中国科学院大气物理研究所,北京 100080 |
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| 基金项目： | 部分得到国家气象局强风暴实验室资助 |
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| 摘 要： | 为探索带状中尺度扰动发生发展的可能性及其对深厚对流云团的启动和组织作用。本文利用准动量无辐散二维模式讨论了斜压切变基流上中尺度横波扰动的发展问题。首先导出波能密度和波作用量，然后利用ＷＫＢ方法分析了波包的传播，建立波作用量方程，进而从波作用量方程出发，分别讨论了大气中各种层结下横波型扰动发展的物理背景条件。
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| 关 键 词： | 斜压大气 准动量无辐散模式 中尺度横波扰动 波作用量方程 |
The Development of Mesoscale Transversal Disturbances in the Baroclinic Atmosphere |
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| Wang Donghai and Zhou Xiaoping.The Development of Mesoscale Transversal Disturbances in the Baroclinic Atmosphere[J].Chinese Journal of Atmospheric Sciences,1994,18(1):61-71. |
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| Authors: | Wang Donghai and Zhou Xiaoping |
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| Abstract: | In this paper,the development problems of mesoscale transversal disturbances on baroclinic shear-ing basic flow are investigated with the nonmomentum-divergence two-dimensional model.First, thewave action density or the wave action is derived.Second, the wave packet propagation is analyzed andthe equation of the wave action is established by the WKB method.And then,using the equaiton of thewave action,the environmental conditions of the development of the transversal mesoscale disturbancewith all kinds of stratified atmosphere are discussed, respectively. |
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| Keywords: | baroclinic atmosphere non-momentum-divergence equations mesoscale transversal disturbance equation of the wave action |
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