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本文研制了一个区域的简单耦合海气模式,并用来模拟热带太平洋ENSO循环。模式由一层大气模式和一层海洋模式构成。大气模式由运动方程和热力方程组成;海洋模式由运动方程、连续方程和海温方程组成。非绝热加热与风应力构成海气间耦合媒介项,其中大气对海洋的影响以风应力为主,海洋对大气的影响以非绝热加热为主。在理论分析和数值实验的基础上,成功地实现了简单海气耦合模式的正常运转,并且应于对1982-1983年埃尔尼诺现象的数值模拟.对该事件从发展到衰弱的全过程,特别是中期与成熟期获得了良好的模拟效果,显示出本模式的模拟能力,也验证了热带太平洋区域耦合海气作用对ENSO循环的重大贡献。
In this paper, a simple coupled ocean-atmosphere model has been developed and used to simulate the tropical Pacific ENSO cycle. Mode consists of a layer of atmospheric mode and a layer of ocean mode. The atmospheric model consists of an equation of motion and a thermodynamic equation; the ocean model consists of an equation of motion, a continuous equation, and a SST equation. Non-adiabatic heating and wind stress constitute the medium of the sea-air coupling medium, in which the influence of the atmosphere on the ocean is dominated by wind stress, and the influence of the ocean on the atmosphere is dominated by non-adiabatic heating. Based on the theoretical analysis and numerical experiments, the normal operation of a simple coupled ocean-atmosphere model has been successfully achieved, and the numerical simulation of El Niño phenomenon from 1982 to 1983 should be carried out. The good simulation results of this event from the development to the weakness, especially in the mid-term and the mature phase, show the simulation capability of this model and also verify the significant contributions of the coupled ocean-atmosphere in the tropical Pacific to the ENSO cycle.