IOCAS-IR  > 海洋环流与波动重点实验室
Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles
Huang Chao1,2,3,4; Xu Yongsheng1,2,4
2019-03-01
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume37Issue:2Pages:498-512
Corresponding AuthorXu Yongsheng(yongsheng.xu@qdio.ac.cn)
AbstractThe global diapycnal transport in the ocean interior is one of the significant branches to return the deep water back toward near-surface. However, the amount of the diapycnal transport and the seasonal variations are not determined yet. This paper estimates the dissipation rate and the associated diapycnal transports at 500 m, 750 m and 1 000 m depth throughout the global ocean from the wide-spread Argo profiles, using the finescale parameterizations and classic advection-diffusion balance. The net upwelling is similar to 5.2 +/- 0.81 Sv (Sverdrup) which is approximately one fifth in magnitude of the formation of the deep water. The Southern Ocean is the major region with the upward diapycnal transport, while the downwelling emerges mainly in the northern North Atlantic. The upwelling in the Southern Ocean accounts for over 50% of the amount of the global summation. The seasonal cycle is obvious at 500 m and vanishes with depth, indicating the energy source at surface. The enhancement of diapycnal transport occurs at 1 000 m in the Southern Ocean, which is pertinent with the internal wave generation due to the interaction between the robust deep-reaching flows and the rough topography. Our estimates of the diapycnal transport in the ocean interior have implications for the closure of the oceanic energy budget and the understanding of global Meridional Overturning Circulation.
Keyworddissipation rate diapycnal transport upwelling meridional overturning circulation
DOI10.1007/s00343-019-7290-2
Indexed BySCI
Language英语
Funding ProjectQingdao Pilot National Laboratory for Marine Science and Technology[2018ASKJ01] ; National Natural Science Foundation of China[41676168] ; National Natural Science Foundation of China[41376028] ; National Key Research and Development Program[2016YFC1401004] ; National Key Research and Development Program[2016YFC1401008] ; NSFC-Innovation Research Group of Sciences Fund[41421005] ; Aoshan S&T Innovation Project from Qingdao Pilot National Laboratory for Marine Science and Technology ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; National Science Foundation for Young Scientists of China[41606200]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000464895600011
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161171
Collection海洋环流与波动重点实验室
Corresponding AuthorXu Yongsheng
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao 266000, Shandong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Shandong, Peoples R China
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang Chao,Xu Yongsheng. Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2019,37(2):498-512.
APA Huang Chao,&Xu Yongsheng.(2019).Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,37(2),498-512.
MLA Huang Chao,et al."Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 37.2(2019):498-512.
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