| 热带海气耦合系统中的长周期振荡及大气中的赤道辐合带 |
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| 引用本文： | 季劲钧,巢纪平.热带海气耦合系统中的长周期振荡及大气中的赤道辐合带[J].气象学报,1979,37(3):32-43. |
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| 作者姓名： | 季劲钧 巢纪平 |
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| 作者单位： | 中国科学院地理研究所
(季劲钧)，中国科学院地理研究所(巢纪平) |
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| 摘 要： | 在考虑到大气中各种非绝热加热和对海洋的反馈过程后,建立了一个纬向平均的海洋、大气耦合系统模型。对系统的频率分析表明:存在着一类周期在月以上的长周期振荡。周期的长短依赖于海洋的混合层深度、所在纬度和各种物理过程(如对流凝结加热,辐射冷却、海面蒸发、海水上翻和云量对辐射平衡的调节等)的强弱。 在上述的基础上,讨论了赤道辐合带的形成和变化。计算所得的辐合带宽度和纬度与观测事实是比较一致的。
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| 收稿时间： | 1978/6/30 0:00:00 |
LONG-RANGE OSCILLATIONS IN THE TROPICAL OCEAN-ATMOSPHERIC COUPLED SYSTEM AND INTERTROPICAL CONVERGENCE ZONE IN THE ATMOSPHERE |
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| Ji Jin-jun and Ghao Ji-ping.LONG-RANGE OSCILLATIONS IN THE TROPICAL OCEAN-ATMOSPHERIC COUPLED SYSTEM AND INTERTROPICAL CONVERGENCE ZONE IN THE ATMOSPHERE[J].Acta Meteorologica Sinica,1979,37(3):32-43. |
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| Authors: | Ji Jin-jun and Ghao Ji-ping |
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| Institution: | Institute of Atmospheric Physics, Academia Sinica;Institute of Atmospheric Physics, Academia Sinica |
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| Abstract: | Considering the processes of non-adiabatic heatinb in the atmosphere and the feedback mechanism of the atmosphere to the ocean, a zonally averaged model of ocean-atmospheric coupled system is constructed. The frequency-analysis of this system shows that there exist long-range (longer than one month) oscillations. The duration of oscillations depends upon the depth of mixing layer in the ocean, the latitudinal location and the intensity of various physical processes, such as convective condensation heating, radiative cooling, evaporation from the sea surface, upwelling of oceanic water by wind stress and regulation of radiation balance by clouds.Based on above the results, the formation and features of ITCXZ are discussed.The computed width and latitudinal location of the covergence zone have been found in fair agreement with the observed facts. |
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