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Journal of Meteorological Research

, Volume 28, Issue 1, pp 1–33 | Cite as

Recent advance in understanding the dynamics of the Madden-Julian oscillation

  • Tim Li (李天明)
Article

Abstract

The Madden-Julian oscillation (MJO) is a dominant atmospheric low-frequency mode in the tropics. In this review article, recent progress in understanding the MJO dynamics is described. Firstly, the fundamental physical processes responsible for MJO eastward phase propagation are discussed. Next, a recent modeling result to address why MJO prefers a planetary zonal scale is presented. The effect of the seasonal mean state on distinctive propagation characteristics between northern winter and summer is discussed in a theoretical framework. Then, the observed precursor signals and the physical mechanism of MJO initiation in the western equatorial Indian Ocean are further discussed. Finally, scale interactions between MJO and higherfrequency eddies are delineated.

Key words

Madden-Julian oscillation (MJO) eastward phase propagation physical mechanism of MJO initiation scale interaction 

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Copyright information

© The Chinese Meteorological Society and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.International Pacific Research Center and Department of Meteorology, School of Ocean and Earth Science and TechnologyUniversity of Hawaii at ManoaHonoluluUSA
  2. 2.Key Laboratory of Meteorological Disaster and College of Atmospheric ScienceNanjing University of Information Science & TechnologyNanjingChina

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