IOCAS-IR  > 海洋环流与波动重点实验室
Heat and salt transport throughout the North Pacific Ocean
Yang Lina1,2,3; Yuan Dongliang1,3,4
AbstractAbsolute geostrophic currents in the North Pacific Ocean are calculated using the P-vector method and gridded Argo profiling data from January 2004 to December 2012. Three-dimensional structures and seasonal variability of meridional heat transport (MHT) and meridional salt transport (MST) are analyzed. The results show that geostrophic and Ekman components are generally opposite in sign, with the southward geostrophic component dominating in the subtropics and the northward Ekman component dominating in the tropics. In combination with the net surface heat flux and the MST through the Bering Strait, the MHT and MST of the western boundary currents (WBCs) are estimated for the first time. The results suggest that the WBCs are of great importance in maintaining the heat and salt balance of the North Pacific. The total interior MHT and MST in the tropics show nearly the same seasonal variability as that of the Ekman components, consistent with the variability of zonal wind stress. The geostrophic MHT in the tropics is mainly concentrated in the upper layers, while MST with large amplitude and annual variation can extend much deeper. This suggests that shallow processes dominate MHT in the North Pacific, while MST can be affected by deep ocean circulation. In the extratropical ocean, both MHT and MST are weak. However, there is relatively large and irregular seasonal variability of geostrophic MST, suggesting the importance of the geostrophic circulation in the MST of that area.
KeywordAbsolute Geostrophic Current P-vector Meridional Heat Transport (Mht) Meridional Salt Transport (Mst)
Indexed BySCI
WOS IDWOS:000382885200019
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
4.Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266003, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
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GB/T 7714
Yang Lina,Yuan Dongliang. Heat and salt transport throughout the North Pacific Ocean[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(6):1347-1357.
APA Yang Lina,&Yuan Dongliang.(2016).Heat and salt transport throughout the North Pacific Ocean.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(6),1347-1357.
MLA Yang Lina,et al."Heat and salt transport throughout the North Pacific Ocean".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.6(2016):1347-1357.
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