Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves | |
Zhang, Min1,2,3; Wu, Zhaohua1,4,5,6; Qiao, Fangli1,2,7 | |
刊名 | JOURNAL OF CLIMATE |
2018-10 | |
卷号 | 31期号:20页码:8541-8555 |
关键词 | Ocean Atlantic Ocean Heating Kelvin waves Ocean circulation Oceanic variability |
ISSN号 | 0894-8755 |
DOI | 10.1175/JCLI-D-18-0255.1 |
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 degrees 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. |
资助项目 | U.S. National Science Foundation program[AGS-1139479] ; U.S. National Science Foundation program[AGS-1723300] |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | AMER METEOROLOGICAL SOC |
WOS记录号 | WOS:000444670900001 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn/handle/2SI8HI0U/2796] |
专题 | 业务部门_海洋环境与数值模拟研究室 |
作者单位 | 1.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China; 2.State Ocean Adm, Lab Reg Oceanog & Numer Modeling, Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China; 3.State Ocean Adm, Key Lab Data Anal & Applicat, Qingdao, Peoples R China; 4.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA; 5.Florida State Univ, Ctr Ocean Atmospher Predict Studies, Tallahassee, FL 32306 USA; 6.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China; 7.State Ocean Adm, Key Lab Marine Sci & Numer Modeling, Qingdao, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Min,Wu, Zhaohua,Qiao, Fangli. Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves[J]. JOURNAL OF CLIMATE,2018,31(20):8541-8555. |
APA | Zhang, Min,Wu, Zhaohua,&Qiao, Fangli.(2018).Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves.JOURNAL OF CLIMATE,31(20),8541-8555. |
MLA | Zhang, Min,et al."Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves".JOURNAL OF CLIMATE 31.20(2018):8541-8555. |
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