DOI: 10.1007/s00382-014-2349-4
Scopus记录号: 2-s2.0-84924042210
论文题名: Pacific Decadal Oscillation and its relation to the extratropical atmospheric variation in CMIP5
作者: Yim B.Y. ; Kwon M.H. ; Min H.S. ; Kug J.-S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 44, 期: 2017-05-06 起始页码: 1521
结束页码: 1540
语种: 英语
英文关键词: Aleutian Low (AL)
; Coupled general circulation models (CGCMs)
; Pacific Decadal Oscillation (PDO)
; PDO-to-AL feedback
英文摘要: It is investigated how the simulated Pacific Decadal Oscillation (PDO) differs among various coupled general circulation models (CGCMs), and how it is related to the simulated atmospheric variation in the North Pacific. The dataset of the historical runs of the 26 CGCMs reported to the Coupled Model Intercomparison Project Phase 5 are used. It is shown that the differences in the PDO pattern among 26 CGCMs are closely related to diverse displacements of the simulated Aleutian Low (AL), that is, the PDO pattern is highly dependent on longitudinal and latitudinal position of the anomalous AL associated with the PDO (PDO-related AL; ALPDO). In addition, it is demonstrated that in the models that have the southward shift of the ALPDO, the North Pacific sea surface temperature anomalies (SSTAs) associated with the PDO tend to modulate the atmospheric circulation strongly, implying strong two-way feedback between ocean and atmosphere. Therefore, this gives relatively strong persistency of the PDO. It is also found that the PDO in these models is highly correlated with the variation of the Kuroshio Extension current, implying that ocean dynamical processes play an important role in developing SSTAs. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: MEST, Ministry of Education, Science and Technology
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54187
Appears in Collections: 过去全球变化的重建
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作者单位: Korea Institute of Ocean Science and Technology, Ansan, South Korea; School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
Recommended Citation:
Yim B.Y.,Kwon M.H.,Min H.S.,et al. Pacific Decadal Oscillation and its relation to the extratropical atmospheric variation in CMIP5[J]. Climate Dynamics,2015-01-01,44(2017-05-06)