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Volume 9 Issue 2

Mar.  1992

Article Contents

A Further Study on an Extended Nonlinear Ocean-Atmosphere Coupled Hydrodynamic Characteristic System and the Abrupt Feature of ENSO Events


doi: 10.1007/BF02657504

  • An extended ocean-atmosphere coupled characteristic system including thermodynamic physical processes in ocean mixed layer is formulated in order to describe SST explicitly and remove possible limitation of ocean-atmos-phere coupling assumption in hydrodynamic ENSO models. It is revealed that there is a kind of abrupt nonlinear characteristic behaviour, which relates to rapid onset and intermittency of El Nino events, on the second order slow time scale due to the nonlinear interaction between a linear unstable low-frequency primary eigen component of ocean-atmosphere coupled Kelvin wave and its higher order harmonic components under a strong ocean-atmos-phere coupling background. And, on the other hand, there is a kind of finite amplitude nonlinear characteristic behaviour on the second order slow time scale due to the nonlinear interaction between the linear unstable primary eigen component and its higher order harmonic components under a weak ocean-atmosphere coupling background in this model system.
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    [2] Junya HU, Rong-Hua ZHANG, Chuan GAO, 2019: A Hybrid Coupled Ocean-Atmosphere Model and Its Simulation of ENSO and Atmospheric Responses, ADVANCES IN ATMOSPHERIC SCIENCES, 36, 643-657.  doi: 10.1007/s00376-019-8197-8
    [3] ZHANG Rong-Hua, 2015: A Hybrid Coupled Model for the Pacific Ocean-Atmosphere System. Part I: Description and Basic Performance, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 301-318.  doi: 10.1007/s00376-014-3266-5
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    [5] YU Yongqiang, ZHANG Xuehong, GUO Yufu, 2004: Global Coupled Ocean-Atmosphere General Circulation Models in LASG/IAP, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 444-455.  doi: 10.1007/BF02915571
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    [8] SUN Guodong, MU Mu, 2009: Nonlinear Feature of the Abrupt Transitions between Multiple Equilibria States of an Ecosystem Model, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 293-304.  doi: 10.1007/s00376-009-0293-8
    [9] ZHOU Tianjun, YU Yongqiang, LIU Hailong, LI Wei, YOU Xiaobao, ZHOU Guangqing, 2007: Progress in the Development and Application of Climate Ocean Models and Ocean-Atmosphere Coupled Models in China, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 1109-1120.  doi: 10.1007/s00376-007-1109-3
    [10] Zhou Guangqing, Zeng Qingcun, 2001: Predictions of ENSO with a Coupled Atmosphere-Ocean General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 587-603.  doi: 10.1007/s00376-001-0047-8
    [11] LIU Zhengyu, WU Shu, ZHANG Shaoqing, LIU Yun, RONG Xinyao, , 2013: Ensemble Data Assimilation in a Simple Coupled Climate Model: The Role of Ocean-Atmosphere Interaction, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1235-1248.  doi: 10.1007/s00376-013-2268-z
    [12] Boyin HUANG, ZHU Jiang, YANG Haijun, 2014: Mechanisms of Atlantic Meridional Overturning Circulation (AMOC) Variability in a Coupled Ocean-Atmosphere GCM, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 241-251.  doi: 10.1007/s00376-013-3021-3
    [13] LI Jianglong, ZHANG Xuehong, YU Yongqiang, DAI Fushan, 2004: Primary Reasoning behind the Double ITCZ Phenomenon in a Coupled Ocean-Atmosphere General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 857-867.  doi: 10.1007/BF02915588
    [14] LIU Qinyu, WEN Na, YU Yongqiang, 2006: The Role of the Kuroshio in the Winter North Pacific Ocean-Atmosphere Interaction: Comparison of a Coupled Model and Observations, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 181-189.  doi: 10.1007/s00376-006-0181-4
    [15] Bueh Cholaw, Ji Liren, 1999: The Ocean-Atmosphere Coupled Regimes and East Asian Winter Monsoon (EAWM) Activity, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 91-106.  doi: 10.1007/s00376-999-0006-3
    [16] Chao Jiping, WangXiaoxi, Chen Yingyi, Wang Lizhi, 1986: MONTHLY AND SEASONAL NUMERICAL FORECASTS BY USING THE ANOMALY OCEAN-ATMOSPHERE COUPLED FILTERED MODEL, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 139-149.  doi: 10.1007/BF02682548
    [17] WEN Yuanqiao, HUANG Liwen, DENG Jian, ZHANG Jinfeng, WANG Sisi, WANG Lijun, 2006: Framework of Distributed Coupled Atmosphere-Ocean-Wave Modeling System, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 442-448.  doi: 10.1007/s00376-006-0442-2
    [18] LIU Qinyu, WU Shu, YANG Jianling, HU Haibo, HU Ruijin, LI Lijuan, 2006: A Review of Ocean-Atmosphere Interaction Studies in China, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 982-991.  doi: 10.1007/s00376-006-0982-5
    [19] Shaowu BAO, Lian XIE, Sethu RAMAN, 2004: A Numerical Study of a TOGA-COARE Squall-Line Using a Coupled Mesoscale Atmosphere-Ocean Model, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 708-716.  doi: 10.1007/BF02916368
    [20] Liu Hui, Zhang Xuehong, 1999: A Study of SST Warming Trend in the Western Equatorial Pacific in a Coupled Ocean-Atmosphere-Land GCM, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 24-30.  doi: 10.1007/s00376-999-0002-7

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Manuscript History

Manuscript received: 10 March 1992
Manuscript revised: 10 March 1992
通讯作者: 陈斌, bchen63@163.com
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A Further Study on an Extended Nonlinear Ocean-Atmosphere Coupled Hydrodynamic Characteristic System and the Abrupt Feature of ENSO Events

  • 1. Institute of Atmospheric Physics, Academia Sinica, Beijing 100080,Institute of Atmospheric Physics, Academia Sinica, Beijing 100080

Abstract: An extended ocean-atmosphere coupled characteristic system including thermodynamic physical processes in ocean mixed layer is formulated in order to describe SST explicitly and remove possible limitation of ocean-atmos-phere coupling assumption in hydrodynamic ENSO models. It is revealed that there is a kind of abrupt nonlinear characteristic behaviour, which relates to rapid onset and intermittency of El Nino events, on the second order slow time scale due to the nonlinear interaction between a linear unstable low-frequency primary eigen component of ocean-atmosphere coupled Kelvin wave and its higher order harmonic components under a strong ocean-atmos-phere coupling background. And, on the other hand, there is a kind of finite amplitude nonlinear characteristic behaviour on the second order slow time scale due to the nonlinear interaction between the linear unstable primary eigen component and its higher order harmonic components under a weak ocean-atmosphere coupling background in this model system.

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