| 山谷环流转换的高阶闭合数值模拟及其理论分析 |
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| 引用本文： | 齐瑛,傅抱璞.山谷环流转换的高阶闭合数值模拟及其理论分析[J].大气科学,1993,17(1):112-120. |
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| 作者姓名： | 齐瑛 傅抱璞 |
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| 作者单位： | 南京大学大气科学系 210008
(齐瑛)，南京大学大气科学系 210008(傅抱璞) |
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| 摘 要： | 本文利用二维高阶矩湍流闭合的中尺度数值模式,模拟并讨论了孤立地形之上由白天谷风环流系统向夜问山风环流系统转换阶段的流场结构.结果指出,残余加热源激发出的重力内波对环流转换阶段的流场演变起着极其重要的作用,同时亦给出了相应的湍流结构图象.
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| 关 键 词： | 山谷环流转换 残余加热源 重力内波 |
The simulations and theoretical analysis of the mountain-valley circulation transition |
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| Qi Ying and Fu Baopu.The simulations and theoretical analysis of the mountain-valley circulation transition[J].Chinese Journal of Atmospheric Sciences,1993,17(1):112-120. |
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| Authors: | Qi Ying and Fu Baopu |
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| Abstract: | In this paper, by using a two-dimensional meso-scale numerical model with the higher-order turbulent closure, the flow field structure over an isolated mountain is simulated and discussed for the period of the evening transition from valley wind circulations to mountain wind circulations. It is demonstrated that the gravity waves induced by the remained heat source play an extremely important role in the flow field evolution during the circulation transition period . And the physical figures of the corresponding turbulent structures are given at the same time . |
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| Keywords: | Mountain-valley circulation transition Remained heat source Gravity waves |
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