报告题目：Understanding Uncertainties of Arctic Sea Ice Modeling and Enhancing Robustness of Arctic Sea Ice Change Projections 报告时间：2013年12月24日（星期二）下午14:00 报告地点：气象楼423报告厅 主持人：王召民 教授 欢迎广大师生踊跃参加！ 专家简介： Dr. Xiangdong Zhang is interested in climate variability and global warming forced climate changes. Specifically, his recent research projects have focused on Arctic-global climate interactions and rapid climate change, tropical and North Pacific decadal variability, global warming forced extreme climate and weather events, Arctic and global freshwater and energy budgets and pathways, storm track dynamics and its interaction with large-scale circulations, and treatment/parameterization of physics in climate models. He has collaborated with numerous national and international colleagues in his research. Recent major accomplishments include the detection of a spatial shift of atmospheric circulation and its driving role in recent rapid Arctic climate change, identification of poleward shift of storm tracks and intensification of storm activity, evaluation of future Arctic sea ice changes by the IPCC AR4 models, and analysis of Arctic sea ice mass balance, heat and freshwater budgets and pathways.