globalchange  > 气候减缓与适应
DOI: 10.1175/JCLI-D-16-0866.1
Scopus记录号: 2-s2.0-85025708189
论文题名:
Causes of enhanced SST variability over the equatorial Atlantic and its relationship to the Atlantic zonal mode in CMIP5
作者: Yang Y.; Xie S.-P.; Wu L.; Kosaka Y.; Li J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期:16
起始页码: 6171
结束页码: 6182
语种: 英语
Scopus关键词: Oceanography ; Bjerknes feedback ; Climate variability ; Coupled Model Intercomparison Project ; Geophysical fluid dynamics laboratories ; Interannual variability ; Model errors ; Sea surface temperature (SST) ; Thermal forcing ; Climate models
英文摘要: A spurious band of enhanced sea surface temperature (SST) variance (SBEV) is identified over the northern equatorial Atlantic in the Geophysical Fluid Dynamics Laboratory (GFDL) Climate Model, version 2.1. The SBEV is especially pronounced in boreal spring owing to the combined effect of both anomalous atmospheric thermal forcing and oceanic vertical upwelling. The SBEV is a common bias in phase 5 of the Coupled Model Intercomparison Project (CMIP5), found in 14 out of 23 models. The SBEV in CMIP5 is associated with the atmospheric thermal forcing and the oceanic vertical upwelling, similar to GFDL CM2.1. While the tropical North Atlantic variability is only weakly correlated with the Atlantic zonal mode (AZM) in observations, the SBEV in CMIP5 produces conditions that drive and intensify the AZM variability via triggering the Bjerknes feedback. This partially explains why AZM is strong in some CMIP5 models even though the equatorial cold tongue and easterly trades are biased low. © 2017 American Meteorological Society.
资助项目: NSFC, National Natural Science Foundation of China ; NSFC, National Natural Science Foundation of China ; NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/48774
Appears in Collections:气候减缓与适应
气候变化与战略

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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China; College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Physical Oceanography Laboratory, CIMST, Ocean University of China, Qingdao, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China

Recommended Citation:
Yang Y.,Xie S.-P.,Wu L.,et al. Causes of enhanced SST variability over the equatorial Atlantic and its relationship to the Atlantic zonal mode in CMIP5[J]. Journal of Climate,2017-01-01,30(16)
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