globalchange  > 气候变化与战略
DOI: 10.1038/s41561-020-00669-x
论文题名:
Atlantic and Pacific tropics connected by mutually interactive decadal-timescale processes
作者: Meehl G.A.; Hu A.; Castruccio F.; England M.H.; Bates S.C.; Danabasoglu G.; McGregor S.; Arblaster J.M.; Xie S.-P.; Rosenbloom N.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2021
卷: 14, 期:1
起始页码: 36
结束页码: 42
语种: 英语
英文关键词: Atlantic Multidecadal Oscillation ; climate modeling ; climate prediction ; decadal variation ; experimental study ; heat flux ; midlatitude environment ; sea surface temperature ; timescale ; Walker circulation ; Atlantic Ocean ; Pacific Ocean
英文摘要: 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. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169792
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作者单位: National Center for Atmospheric Research, Boulder, CO, United States; Climate Change Research Centre (CCRC), University of New South Wales, Sydney, NSW, Australia; ARC Centre of Excellence for Climate Extremes, and School of Earth, Atmosphere and Environment, Monash University, Clayton, VIC, Australia; Scripps Institution of Oceanography, La Jolla, CA, United States

Recommended Citation:
Meehl G.A.,Hu A.,Castruccio F.,et al. Atlantic and Pacific tropics connected by mutually interactive decadal-timescale processes[J]. Nature Geoscience,2021-01-01,14(1)
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