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《Climatic and Environmental Research》 2001-03
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A Further Research on the Cyclic Relationship between Anomalous East-Asian Winter Monsoon and ENSO

Mu Mingquan (State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029)  
Through composite analyses about the observed global monthly data from 1955 to 1989, we further point out there is apparent interactive cycle relationship between East Asian winter monsoon and ENSO (E1 Nino and La Nina). On the one hand, stronger (weaker) East Asian winter monsoon ex- cite happening of E1 Nino (La Nina) through forced anomalous westerly (easterly) wind and stronger (weaker) convective activity over the tropical Pacific Ocean, caused by anomalous winter monsoon, on the other hand, the occurrence of E1 Nino (La Nina) weakens (enhances) East Asian winter monsoon through the atmospheric teleconnection in the northern hemisphere. The results of power spectral ana- lyses show that this cycle mainly manifests in the 3- 5 years; in the meantime, quasi-biannual cycle is also clear.
【Fund】: 国家重点基础研究发展规划项目G1998040900第一部分;; 中国科学院KZCX2-203项目共同资助
【CateGory Index】: P732
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