报告题目：Basin Scale Interaction: Atlantic Influence on the tropical Pacific 

报告时间：6月22日（星期三）上午10：00 

报告地点：气象楼423 

主 持 人：董昌明 教授 

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气象灾害预报预警与评估协同创新中心 

气象灾害教育部重点实验室 

院士工作办公室 

2016.6.20 

专家简介： 

In-Sik Kang, 1952年生，韩国首尔国立大学教授，现任WCRP科学委员会委员，主要从事全球气候模拟、季节和次季节尺度预报、ENSO与季风动力学等方面的研究，已发表SCI论文150余篇。曾获韩国气象学会科学成就奖、韩国教育和科技部科学贡献奖等奖励。 

报告摘要： 

The mechanisms associated with the modulation of the El Niño-Southern Oscillation (ENSO) amplitude caused by the Atlantic Multi-decadal Oscillation (AMO) are investigated by using a long-term historical observational data and various types of models. The observational data for the period 1900-2013 show that the positive phase of AMO has accompanied cooling in the central tropical Pacific and weak ENSO variability and vice-versa in the negative phase. Such a relationship between the AMO and ENSO amplitude has been reported by a number of previous studies. In the present study, we demonstrate that the weakening of the ENSO amplitude during the positive phase of AMO is related to the changes of the SST cooling in the eastern and central Pacific in the presence of warm poor in the Western Pacific, which were reproduced reasonably well by CGCM simulations performed with the Atlantic Ocean SST nudged perpetually with the observed SST representing the positive phase of AMO and free integration in the other ocean basins. Using a hybrid coupled model, it was determined that the mechanism associated with the weakening of the ENSO amplitude is related to the westward shift and weakening of the ENSO zonal wind stress anomalies accompanied by the westward shift of precipitation anomalies associated with the relatively cold background mean SST over the central Pacific.