globalchange  > 影响、适应和脆弱性
DOI: 10.1175/JCLI-D-18-0255.1
Scopus记录号: 2-s2.0-85054099725
论文题名:
Deep Atlantic Ocean warming facilitated by the deep western boundary current and equatorial Kelvin waves
作者: Zhang M.; Wu Z.; Qiao F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期:20
起始页码: 8541
结束页码: 8555
语种: 英语
英文关键词: Atlantic Ocean ; Heating ; Kelvin waves ; Ocean ; Ocean circulation ; Oceanic variability
Scopus关键词: Gravity waves ; Heat storage ; Heating ; Atlantic Ocean ; Kelvin waves ; Ocean ; Ocean circulation ; Oceanic variabilities ; Oceanography
英文摘要: Increased heat storage in deep oceans has been proposed to account for the slowdown of global surface warming since the end of the twentieth century. How the imbalanced heat at the surface has been redistributed to deep oceans remains to be elucidated. Here, the evolution of deep Atlantic Ocean heat storage since 1950 on multidecadal or longer time scales is revealed. The anomalous heat in the deep Labrador Sea was transported southward by the shallower core of the deep western boundary current (DWBC). Upon reaching the equator around 1980, this heat transport route bifurcated into two, with one continuing southward along the DWBC and the other extending eastward along a narrow strip (about 4° width) centered at the equator. In the 1990s and 2000s, meridional diffusion helped to spread warming in the tropics, making the eastward equatorial warming extension have a narrow head and wider tail. The deep Atlantic Ocean warming since 1950 had overlapping variability of approximately 60 years. The results suggest that the current basinwide Atlantic Ocean warming at depths of 1000-2000 m can be traced back to the subsurface warming in the Labrador Sea in the 1950s. An inference from these results is that the increased heat storage in the twenty-first century in the deep Atlantic Ocean is unlikely to partly account for the atmospheric radiative imbalance during the last two decades and to serve as an explanation for the current warming hiatus. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110673
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: First Institute of Oceanography, State Oceanic Administration, Qingdao, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Data Analysis and Applications, State Oceanic Administration, Qingdao, China; Department of Earth, Ocean, Florida State University, Tallahassee, FL, United States; Atmospheric Science and Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Marine Sciences and Numerical Modeling, State Oceanic Administration, Qingdao, China

Recommended Citation:
Zhang M.,Wu Z.,Qiao F.. Deep Atlantic Ocean warming facilitated by the deep western boundary current and equatorial Kelvin waves[J]. Journal of Climate,2018-01-01,31(20)
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