| THE DYNAMICAL BASIS OF GEOSTROPHIC ADJUSTMENT MOTIONS IN TROPICS |
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| 作者姓名： | 巢纪平 |
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| 作者单位： | National Research |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Project No.49775260. |
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| 摘 要： | Some dynamic constrains in the process of the tropical baroclinic geostrophic adjustment arediscussed.The dispersion equation of three-dimensional inertia-gravitational wave and the equation oftemporal conservation of potential vorticity are given,without considering the gradient of planetarypotential vorticity.It indicates that the motions will be horizontal,meaning that Taylor-Proudmantheorem is still right for tropics.At the same time,the semi-geostrophic balance is easier to appear inthe tropical belt.Therefore the motions are generally horizontal and non-divergent,but still arestratified after the geostrophic balance establishes.
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THE DYNAMICAL BASIS OF GEOSTROPHIC ADJUSTMENT MOTIONS IN TROPICS |
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| CHAO Jiping National Research Center for Marine Environmental Forecasts,State Oceanic Administration,Beijing.THE DYNAMICAL BASIS OF GEOSTROPHIC ADJUSTMENT MOTIONS IN TROPICS[J].Acta Meteorologica Sinica,2001(1). |
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| Authors: | CHAO Jiping National Research Center for Marine Environmental Forecasts State Oceanic Administration Beijing |
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| Institution: | CHAO Jiping National Research Center for Marine Environmental Forecasts,State Oceanic Administration,Beijing 100081 |
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| Abstract: | Some dynamic constrains in the process of the tropical baroclinic geostrophic adjustment are discussed.The dispersion equation of three-dimensional inertia-gravitational wave and the equation of temporal conservation of potential vorticity are given,without considering the gradient of planetary potential vorticity.It indicates that the motions will be horizontal,meaning that Taylor-Proudman theorem is still right for tropics.At the same time,the semi-geostrophic balance is easier to appear in the tropical belt.Therefore the motions are generally horizontal and non-divergent,but still are stratified after the geostrophic balance establishes. |
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| Keywords: | tropical baroclinic atmosphere geostrophic adjustment process dynamic constraint |
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