Heat and salt transport throughout the North Pacific Ocean
Absolute 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 analy...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/171838 2023-05-15T15:44:15+02:00 Heat and salt transport throughout the North Pacific Ocean Yang Lina Yuan Dongliang 2016-01-01 http://ir.qdio.ac.cn/handle/337002/171838 英语 eng CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY http://ir.qdio.ac.cn/handle/337002/171838 FRESH-WATER TRANSPORTS EQUATORIAL CURRENT INTERANNUAL VARIATIONS CIRCULATION BIFURCATION SHALLOW MODEL DEEP absolute geostrophic current P-vector meridional heat transport (MHT) meridional salt transport (MST) 期刊论文 2016 ftchinacasciocas 2022-06-27T05:44:16Z Absolute 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. Report Bering Strait Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Bering Strait Pacific |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
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ftchinacasciocas |
language |
English |
topic |
FRESH-WATER TRANSPORTS EQUATORIAL CURRENT INTERANNUAL VARIATIONS CIRCULATION BIFURCATION SHALLOW MODEL DEEP absolute geostrophic current P-vector meridional heat transport (MHT) meridional salt transport (MST) |
spellingShingle |
FRESH-WATER TRANSPORTS EQUATORIAL CURRENT INTERANNUAL VARIATIONS CIRCULATION BIFURCATION SHALLOW MODEL DEEP absolute geostrophic current P-vector meridional heat transport (MHT) meridional salt transport (MST) Yang Lina Yuan Dongliang Heat and salt transport throughout the North Pacific Ocean |
topic_facet |
FRESH-WATER TRANSPORTS EQUATORIAL CURRENT INTERANNUAL VARIATIONS CIRCULATION BIFURCATION SHALLOW MODEL DEEP absolute geostrophic current P-vector meridional heat transport (MHT) meridional salt transport (MST) |
description |
Absolute 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. |
format |
Report |
author |
Yang Lina Yuan Dongliang |
author_facet |
Yang Lina Yuan Dongliang |
author_sort |
Yang Lina |
title |
Heat and salt transport throughout the North Pacific Ocean |
title_short |
Heat and salt transport throughout the North Pacific Ocean |
title_full |
Heat and salt transport throughout the North Pacific Ocean |
title_fullStr |
Heat and salt transport throughout the North Pacific Ocean |
title_full_unstemmed |
Heat and salt transport throughout the North Pacific Ocean |
title_sort |
heat and salt transport throughout the north pacific ocean |
publishDate |
2016 |
url |
http://ir.qdio.ac.cn/handle/337002/171838 |
geographic |
Bering Strait Pacific |
geographic_facet |
Bering Strait Pacific |
genre |
Bering Strait |
genre_facet |
Bering Strait |
op_relation |
CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY http://ir.qdio.ac.cn/handle/337002/171838 |
_version_ |
1766378557614850048 |