Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles

doi:10.1007/s00343-019-7290-2

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 Yongsheng 1,2,4
	2019-03-01
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
卷号	37 期号:2 页码:498-512
通讯作者	Xu Yongsheng(yongsheng.xu@qdio.ac.cn)
摘要	The 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.
关键词	dissipation rate diapycnal transport upwelling meridional overturning circulation
DOI	10.1007/s00343-019-7290-2
收录类别	SCI
语种	英语
资助项目	Qingdao 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] ; Qingdao 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研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000464895600011
出版者	SCIENCE PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/161171
专题	海洋环流与波动重点实验室
通讯作者	Xu Yongsheng
作者单位	1.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
第一作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
通讯作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
推荐引用方式 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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