LTO学术报告 2021-13




报告题目(一):海流和海浪相互作用的研究(Investigating Wave-Current Interactions in the Ocean)



报告人:申锦瑜教授,加拿大达尔豪斯大学海洋系物理海洋学终身教授,曾任灾害性海洋事件模式与预测国际研究合作组的首席科学家。主持加拿大和其他国际机构研究项目30余项,发表SCI论文110余篇。加拿大气象与物理海洋协会(CMOS) 会员、美国地球物理协会(AGU) 会员、美国气象协会(AMS) 会员、国际海洋模型会议(IWMO)科学委员会委员等。担任JGR、JPO、OD等十几种国际知名期刊审稿专家,同时是加拿大、美国、英国和挪威自然科学与工程研究项目评审专家。研究兴趣包括:近岸水和陆架海洋物理过程、数值模式与生物物理模式、近海与陆架海环流预测模式,海气相互作用、海洋化学与生物材料的维持与联通。




报告题目(二):不同海盆间年代际和多年代际海表温度振荡的相互作用(Interactions of the decadal and multidecadal SST mode variability between different ocean basins)



报告人Aixue Hu is a project scientist III at National Center for Atmospheric Research. He has expert knowledge of processes involved with the Atlantic Meridional Overturning Circulation (AMOC), global and regional sea level change, forced global and regional climate change, decadal climate variability and decadal climate prediction. His extensive scientific and technical contributions across a range of research topics are evidence of his thorough understanding of the fundamental methods and procedures for conducting scientific research. Such as he has pioneered researches on the relationship of Bering Strait and AMOC stability, influence of solar panels on global climate, and contributions of internal climate variability on regional sea level change. As a first author, he has published quite a few high profile research papers in top tie journals, such as Nature Geosciences, Nature Climate Change, Nature Communications, and PNAS. He currently is a member of the PAGES scientific steering committee, US CLIVAR AMOC task team 3 co-chair, panelist of the International CLIVAR climate dynamics panel, and board member of Environmental Research Communications, and the CESM CVCWG co-chair. He is also one of the team leads on the DOE funded project – the Cooperative Agreement To Analyze variabiLity, change and predictabilitY in the earth SysTem (CATALYST).


报告摘要:Decadal climate prediction presumes there are decadal-timescale processes and mechanisms that, if initialized properly in models, potentially provide predictive skill more than one or two years into the future. Candidate mechanisms involve Pacific decadal variability and Atlantic multidecadal variability, elements of which involve slow fluctuations of tropical Pacific and Atlantic sea surface temperatures (SSTs) from positive anomalies (positive phase) to negative anomalies (negative phase). Here we use model experiments to show that there tends to be a weak opposite-sign SST response in the tropical Pacific when observed SSTs are specified in the Atlantic, while there is a weak same-sign SST response in the tropical Atlantic when observed SSTs are specified in the tropical Pacific. Net surface heat flux in the Atlantic and ocean dynamics in the Pacific play contrasting roles in the ocean response to specified SSTs in the respective basins. We propose that processes in the Pacific and Atlantic are sequentially interactive through the atmospheric Walker circulation along with contributions from midlatitude teleconnections for the Atlantic response to the Pacific.





线上腾讯会议ID989 655 252  



主持人:彭世球 研究员