热带大气季节内振荡研究进展——观测、动力机制和数值模拟

doi:10.11867/j.issn.1001-8166.2001.01.0072

地球科学进展 ›› 2001, Vol. 16 ›› Issue (1): 72 -78. doi: 10.11867/j.issn.1001-8166.2001.01.0072

李薇,郭裕福,张学洪

中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京 100029

收稿日期:2000-04-21 修回日期:2000-07-10 出版日期:2001-02-01
通讯作者: 李薇(1971-),女,山东人,博士后,主要从事海气相互作用和短期气候研究. E-mail:liw@lasgsgis.iap.ac.cn
基金资助:
中科院“百人计划”新型学科“海气耦合气候系统模式的有效化研究”;优秀国家重点实验室研究项目!(编号 :4982 -3002 )资助.

PROCEEDING OF OBSERVATION,DYNAMICS AND NUMERICAL SIMULATION STUDIES ON MADDEN-JULIAN OSCILLATION

LI Wei, GUO Yufu, ZHANG Xuehong

State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing100029,China

Received:2000-04-21 Revised:2000-07-10 Online:2001-02-01 Published:2001-02-01

热带大气季节内振荡 (MJO)是热带大气活动的强信号。对MJO动力机制的探讨,经历了由考虑完全的大气内部过程 (波动 —CISK理论) ,到考虑海洋影响的大气过程 (WISHE理论) ,到最新的考虑大气—海洋耦合作用 (WCMC模式 )的逐步发展、完善的阶段。现阶段大气模式能够模拟 MJO的一些基本特征但存在许多缺陷。在大气模式中引入上层海洋的反馈作用 ,可以有效改善模拟 MJO的时空结构。MJO的强度变化、季节特征、传播速度等的精确描述只能借助于海气耦合模式。

关键词: 动力机制, 数值模拟, 大气—海洋相互作用, 大气季节内振荡

The Madden Julian Oscillation (MJO) represents the most significant form of atmospheric variability in the tropics on intraseasonal timescales. Theoretical understandings of the MJO pass through the courses of complete internal process to atmosphere (Wave CISK), the atmospheric process influenced by ocean(WISHE theory) and the most recent coupled atmosphere ocean process(WCMC model). The current atmospheric models are able to capture some of the salient features of MJO while the overall results are not satisfied. The introduction of oceanic feedback to atmospheric model by using of a simplified upper ocean model, however, can improve the MJO simulation in respects to both the strength and the propagation. An accurate representing to MJO can only be available by the using of coupled model.

Key words: Madden-julian oscillation, Dynamics, Numerical simulation, Ocean-atmosphere interaction.

中图分类号:

P433

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