Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Decadal Variability of the Meridional Geostrophic Transport in the Upper Tropical North Pacific Ocean | |
Zhou, Hui1,2,3,4; Yuan, Dongliang1,2,3,4 ; Yang, Lina5; Li, Xiang1,2,3; Dewar, William6
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| 2018-08-01 | |
| Source Publication | JOURNAL OF CLIMATE
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| ISSN | 0894-8755 |
| Volume | 31Issue:15Pages:5891-5910 |
| Corresponding Author | Yuan, Dongliang(dyuan@qdio.ac.cn) |
| Abstract | 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. |
| DOI | 10.1175/JCLI-D-17-0639.1 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Meteorology & Atmospheric Sciences |
| WOS Subject | Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000438848800007 |
| Publisher | AMER METEOROLOGICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/163463 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Yuan, Dongliang |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China 6.Florida State Univ, Dept Ocean Atmosphere & Earth Sci, Tallahassee, FL 32306 USA |
| First Author Affilication | Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation 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. |
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