| 两层正压涡旋稳定性问题分析 |
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| 引用本文： | 赵艳玲,梁丹青,张铭. 两层正压涡旋稳定性问题分析[J]. 气象科学, 2004, 24(4): 480-482 |
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| 作者姓名： | 赵艳玲 梁丹青 张铭 |
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| 作者单位： | 解放军理工大学气象学院大气环流与短期气候预测实验室,南京,211101;解放军理工大学气象学院大气环流与短期气候预测实验室,南京,211101;解放军理工大学气象学院大气环流与短期气候预测实验室,南京,211101 |
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| 基金项目： | 国家自然科学基金项目 (编号 :4 0 175 0 14 )，上海科协基金项目 (编号 :0 2DJ14 0 32 )共同资助 |
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| 摘 要： | 本文从柱坐标中线性化的两层均质流体的正压原始方程组出发，从广义能量的角度，研究了该模型中涡旋波的稳定性问题，发现此时不仅可存在广义正压不稳定和超高速不稳定，当上下层扰动厚度场反相时还有新的不稳定类型发生。
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| 关 键 词： | 稳定性 两层正压涡旋 广义能量 |
| 收稿时间： | 2004-06-18 |
| 修稿时间： | 2004-06-18 |
THE STABILITY ANALYSIS OF THE SPIRAL WAVE IN VORTEX OF TWO-LAYER BAROTROPIC FLUID |
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| Zhao Yanling,Liang Danging and Zhang Ming. THE STABILITY ANALYSIS OF THE SPIRAL WAVE IN VORTEX OF TWO-LAYER BAROTROPIC FLUID[J]. Journal of the Meteorological Sciences, 2004, 24(4): 480-482 |
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| Authors: | Zhao Yanling Liang Danging Zhang Ming |
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| Affiliation: | Meteorological College,P.L.A.University of Science and Technology,Nanjing 211101;Meteorological College,P.L.A.University of Science and Technology,Nanjing 211101;Meteorological College,P.L.A.University of Science and Technology,Nanjing 211101 |
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| Abstract: | In this paper,from the view of the generalized energy,the stability of the spiral wave is studied on the basis of the linear two-layer barotropic primitive equation model in the cylindrical coordinates.In this situation,in addition to the generalized barotropic instability and the super high-speed instability,there are some other instabilities when the two-layer disturbance fields of thickness are out-of-phase. |
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| Keywords: | Stability Two-layer barotropic vortex Generalized energy |
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