| 热带简单耦合海气模式中的特征模态研究 |
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| 引用本文： | 张向东.热带简单耦合海气模式中的特征模态研究[J].南京气象学院学报,1992,15(4):447-458. |
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| 作者姓名： | 张向东 |
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| 作者单位： | 南京大学 |
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| 摘 要： |
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| 关 键 词： | 热带 海气 数值模式 |
STUDY OF SHAPACTERISTIC MODESIN SIMPLE TROPICAL COUPLED AIR-SEA MODEL |
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| Zhang Xiangdong Nanjing University.STUDY OF SHAPACTERISTIC MODESIN SIMPLE TROPICAL COUPLED AIR-SEA MODEL[J].Journal of Nanjing Institute of Meteorology,1992,15(4):447-458. |
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| Authors: | Zhang Xiangdong Nanjing University |
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| Institution: | Zhang Xiangdong Nanjing University |
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| Abstract: | The propagation features, stabilities and dynamical characteristic structuresof coupled Kelvin inner modes and second order Rossby inner modes are studied using asimple tropical coupled air-sea model in this paper. It is shown that there is mechanismof selecting scale and frequency in the tropical air-sea system. The effects of air-seacoupling are mainly on the large-scale modes and nonuniform These effects make thefrequency of Kelvinmodes decrease that of Rossby inner modes increase,and even excitethe eastward propagating Rossby inner modes. These effects make the unstable develop-ment of Kelvin modes and result in the decay of Rossbt modes. The effects of atmo-spheric damp are opposite to those of air-sea coupling. The oceanic damp only makesthe wave amplitudes decay Simuitaneously, this paper shows the dynamical characteristicstructures of air-sea coupled system and the phase relationships between the atmo-spheric and oceanic wave component. |
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| Keywords: | tropics air--sea system numerical model model feature |
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