DOI: 10.1175/JCLI-D-17-0639.1
Scopus记录号: 2-s2.0-85049750892
论文题名: Decadal variability of the meridional geostrophic transport in the upper tropical North Pacific Ocean
作者: Zhou H. ; Yuan D. ; Yang L. ; Li X. ; Dewar W.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 15 起始页码: 5891
结束页码: 5910
语种: 英语
英文关键词: Climate models
; Decadal variability
; General circulation models
; Interdecadal variability
; Model evaluation/performance
; Pacific decadal oscillation
Scopus关键词: Oceanography
; Tropics
; Decadal variability
; General circulation model
; Inter-decadal variability
; Model evaluation/performance
; Pacific decadal oscillation
; Climate models
; atmospheric dynamics
; atmospheric transport
; climate modeling
; CMIP
; decadal variation
; geostrophic flow
; meridional circulation
; oceanic general circulation model
; Pacific Decadal Oscillation
; Sverdrup transport
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The meridional geostrophic transport (MGT) in the interior tropical North Pacific Ocean is estimated based on global ocean heat and salt content data. The decadal variations of the zonally and vertically integrated MGT in the tropical North Pacific Ocean are found to precede the Pacific decadal oscillation (PDO) by 1-3 years. The dynamics of the MGT are analyzed based on Sverdrup theory. It is found that the total meridional transport variability (MGT plus Ekman) is dominated by the MGT variability having positive correlations with the PDO index. The Sverdrup transports differ from the total meridional transport significantly and have insignificant correlations with PDO index, suggesting that the MGT variability is not controlled by the Sverdrup dynamics. In comparison, the simulated meridional transport variability in the models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) and the Ocean General Circulation Model for the Earth Simulator are dominated by the Sverdrup transports, having insignificant correlations with the simulated PDO indices. The comparison suggests that the non-Sverdrup component in the MGT is important for the predictability of PDO and that significant deficiencies exist in these models in simulating a realistic structure of the tropical ocean gyre variability and predicting the decadal climate variations associated with it. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111443
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, China; Function Laboratory for Ocean Dynamics and Climate, Qingdao National Laboratory for Marine Science and Technology, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China; First Institute of Oceanography, State Oceanic Administration, Qingdao, China; Department of Ocean, Atmosphere and Earth Sciences, Florida State University, Tallahassee, FL, United States
Recommended Citation:
Zhou H.,Yuan D.,Yang L.,et al. Decadal variability of the meridional geostrophic transport in the upper tropical North Pacific Ocean[J]. Journal of Climate,2018-01-01,31(15)