Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean

doi:10.1175/JCLI-D-17-0639.1

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean
	Zhou, Hui 1,4,5,6; Yuan, Dongliang1,4,5,6 ; Yang, Lina3 ; Li, Xiang 4,5,6; Dewar, William 2
刊名	JOURNAL OF CLIMATE
	2018-08-01
卷号	31 期号:15 页码:5891-5910
ISSN号	0894-8755
DOI	10.1175/JCLI-D-17-0639.1
通讯作者	Yuan, Dongliang(dyuan@qdio.ac.cn)
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.
资助项目	NSFC[41376032] ; NSFC[41421005] ; NSFC[41720104008] ; CAS[XDA11010205] ; QMSNL[2016ASKJ12] ; QMSNL[2016ASKJ04] ; SOA[GASI-03-01-01-05] ; Shandong Provincial projects[2014GJJS0101] ; Shandong Provincial projects[U1606402] ; NSF[1434780] ; NSF[1537304]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:000438848800007
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/163462]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Yuan, Dongliang
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Florida State Univ, Dept Ocean Atmosphere & Earth Sci, Tallahassee, FL 32306 USA 3.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Hui,Yuan, Dongliang,Yang, Lina,et al. Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean[J]. JOURNAL OF CLIMATE,2018,31(15):5891-5910.
APA	Zhou, Hui,Yuan, Dongliang,Yang, Lina,Li, Xiang,&Dewar, William.(2018).Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean.JOURNAL OF CLIMATE,31(15),5891-5910.
MLA	Zhou, Hui,et al."Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean".JOURNAL OF CLIMATE 31.15(2018):5891-5910.