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Three Dimensional Internal Gravity Waves and Initiation of Convective Cloud Streets

Sang Jianguo and Xie An (Department of Geophysics, Peking University, Beijing 100871) Zhang Boyin (Department of Mechanics, Peking University, Beijing 100871)  
By using a two layer model the linear atmospheric equations system is solved analytically to study the disturbed flow fields induced by an isolated hill. The solutions show that the initiated internal waves propagating downstream in the upper stable layer interact with the convections in the lower convective layer and form the large vortices with structure similar to that observed in the convective cloud streets.
【Fund】: 国家自然科学基金
【CateGory Index】: P421.31
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