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Research Progress in China on the Tropical Atmospheric Intraseasonal Oscillation |
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| Authors: | LI Chongyin LING Jian SONG Jie PAN Jing TIAN Hua and CHEN Xiong |
| Institution: | 1. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101 2. State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 3. Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101 |
| Abstract: | Tropical intraseasonal oscillation (including the Madden-Julian oscillation) is an important element of the atmospheric circulation system. The activities and anomalies of tropical intraseasonal oscillations affect weather and climate both inside and outside the tropical region. The study of these phenomena therefore represents one of the frontiers of atmospheric sciences. This review aims to synthesize and summarize studies of intraseasonal oscillation (ISO) by Chinese scientists within the last 5-10 years. We focus particularly on ISO's mechanisms, its numerical simulations (especially the impacts of diabatic heating profiles), relationships and interactions with ENSO (especially over the western Pacific), impacts on tropical cyclone genesis and tracks over the northwestern Pacific, and influences on the onset and activity of the South and East Asian monsoons (especially rainfall over China). Among these, focuses of ongoing research and unresolved issues related to ISO are also discussed. |
| Keywords: | tropical intraseasonal oscillation Madden-Julian oscillation mechanism numerical simulation ENSO |
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