中国物理B ›› 2007, Vol. 16 ›› Issue (3): 578-581.doi: 10.1088/1009-1963/16/3/003

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Asymptotic solution of a sea--air oscillator for ENSO mechanism

莫嘉琪1, 王辉2, 林万涛3   

  1. (1)Anhui Normal University, Wuhu 241000, China;Division of Computational Science, E-Institutes of Shanghai Universities at SJTU, Shanghai 200240, China; (2)Chinese Academy of Meteorological Sciences, Beijing 100081, China ; (3)LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
  • 收稿日期:2006-07-05 修回日期:2006-07-07 出版日期:2007-03-20 发布日期:2007-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos~40676016 and 10471039), the National Key Basics Research Special Foundation of China (Grant No~2004CB418304), the Key Basic Research Foundation of Chinese Academy of Sciences (Grant No~KZCX3-SW-221) and in part by E-Institutes of Shanghai Municipal Education Commission (Grant No~NE03004).

Asymptotic solution of a sea--air oscillator for ENSO mechanism

Mo Jia-Qi(莫嘉琪)a)b)†, Lin Wan-Tao(林万涛)c), and Wang Hui(王辉)d)   

  1. a Anhui Normal University, Wuhu 241000, China; b Division of Computational Science, E-Institutes of Shanghai Universities at SJTU, Shanghai 200240, China; c LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; d Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • Received:2006-07-05 Revised:2006-07-07 Online:2007-03-20 Published:2007-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos~40676016 and 10471039), the National Key Basics Research Special Foundation of China (Grant No~2004CB418304), the Key Basic Research Foundation of Chinese Academy of Sciences (Grant No~KZCX3-SW-221) and in part by E-Institutes of Shanghai Municipal Education Commission (Grant No~NE03004).

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摘要： The EI Ni\~{n}o/La Ni\~{n}a--Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean--atmosphere interactions. In this paper, a class of coupled system of the ENSO mechanism is considered. Based on a class of oscillator of ENSO model, the asymptotic solution of a corresponding problem is studied by employing the approximate method. It is proved from the results that the perturbation method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere--ocean oscillation for the ENSO model.

Abstract: The EI Niño/La Niña--Southern Oscillation (ENSO) is an interannual phenomenon involved in the tropical Pacific ocean--atmosphere interactions. In this paper, a class of coupled system of the ENSO mechanism is considered. Based on a class of oscillator of ENSO model, the asymptotic solution of a corresponding problem is studied by employing the approximate method. It is proved from the results that the perturbation method can be used for analysing the sea surface temperature anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere--ocean oscillation for the ENSO model.

Key words: nonlinear system, asymptotic method, El Niño--Southern Oscillator model

中图分类号:  (El Nino Southern Oscillation)

  • 92.10.am
92.05.Hj (Physical and chemical properties of seawater) 92.60.Cc (Ocean/atmosphere interactions, air/sea constituent fluxes) 93.30.Pm (Pacific Ocean)