Surface cross-equatorial pathways of seawater from the Bay of Bengal
Cross-equatorial pathways of heat and salt in the Eastern Indian Ocean are analyzed using Lagrangian trajectories based on the ECCO2 model simulation and drifter-derived currents combined with Argo data. The results show that most of the particles released in the Bay of Bengal move across the equato...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1101716/full |
| _version_ | 1828044473490210816 |
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| author | Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Jing Wang Jing Wang Jing Wang Jiajia Hao Jiajia Hao Jiajia Hao Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang |
| author_facet | Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Jing Wang Jing Wang Jing Wang Jiajia Hao Jiajia Hao Jiajia Hao Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang |
| author_sort | Zhengbei Zhang |
| collection | DOAJ |
| description | Cross-equatorial pathways of heat and salt in the Eastern Indian Ocean are analyzed using Lagrangian trajectories based on the ECCO2 model simulation and drifter-derived currents combined with Argo data. The results show that most of the particles released in the Bay of Bengal move across the equator near the eastern boundary of the upper Indian Ocean (< 50m) during the southwest monsoon season and join the South Equatorial Current of the wind-driven circulation. Meridional salt and heat transports associated with the cross-equatorial currents feature significant seasonal variations, with stronger southward transports during the southwest monsoon than northward transports during the northeast monsoon, which are correlated significantly with the surface Ekman transports. The estimated annual mean salt and heat transports, based on the model (observational) data, are -0.06×109 (-0.11×109) kg·s-1 and -0.20 (-0.38) PW (1PW = 1015 W), respectively, southward across the equator. |
| first_indexed | 2024-04-10T17:56:49Z |
| format | Article |
| id | doaj.art-ff07f2ef44b748268ca330bda7b74aca |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-10T17:56:49Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-ff07f2ef44b748268ca330bda7b74aca2023-02-02T17:47:17ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-02-011010.3389/fmars.2023.11017161101716Surface cross-equatorial pathways of seawater from the Bay of BengalZhengbei Zhang0Zhengbei Zhang1Zhengbei Zhang2Zhengbei Zhang3Zhengbei Zhang4Jing Wang5Jing Wang6Jing Wang7Jiajia Hao8Jiajia Hao9Jiajia Hao10Dongliang Yuan11Dongliang Yuan12Dongliang Yuan13Dongliang Yuan14Dongliang Yuan15Kunxiang Wang16Kunxiang Wang17Kunxiang Wang18Kunxiang Wang19Kunxiang Wang20CAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, ChinaShandong Key Laboratory of Marine Science and Numerical Modeling, Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, ChinaShandong Key Laboratory of Marine Science and Numerical Modeling, Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, and Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, ChinaShandong Key Laboratory of Marine Science and Numerical Modeling, Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaCross-equatorial pathways of heat and salt in the Eastern Indian Ocean are analyzed using Lagrangian trajectories based on the ECCO2 model simulation and drifter-derived currents combined with Argo data. The results show that most of the particles released in the Bay of Bengal move across the equator near the eastern boundary of the upper Indian Ocean (< 50m) during the southwest monsoon season and join the South Equatorial Current of the wind-driven circulation. Meridional salt and heat transports associated with the cross-equatorial currents feature significant seasonal variations, with stronger southward transports during the southwest monsoon than northward transports during the northeast monsoon, which are correlated significantly with the surface Ekman transports. The estimated annual mean salt and heat transports, based on the model (observational) data, are -0.06×109 (-0.11×109) kg·s-1 and -0.20 (-0.38) PW (1PW = 1015 W), respectively, southward across the equator.https://www.frontiersin.org/articles/10.3389/fmars.2023.1101716/fullcross-equatorial currentsLagrangian tracermeridional salt transportmeridional heat transportEastern Indian Ocean |
| spellingShingle | Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Zhengbei Zhang Jing Wang Jing Wang Jing Wang Jiajia Hao Jiajia Hao Jiajia Hao Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Dongliang Yuan Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang Kunxiang Wang Surface cross-equatorial pathways of seawater from the Bay of Bengal Frontiers in Marine Science cross-equatorial currents Lagrangian tracer meridional salt transport meridional heat transport Eastern Indian Ocean |
| title | Surface cross-equatorial pathways of seawater from the Bay of Bengal |
| title_full | Surface cross-equatorial pathways of seawater from the Bay of Bengal |
| title_fullStr | Surface cross-equatorial pathways of seawater from the Bay of Bengal |
| title_full_unstemmed | Surface cross-equatorial pathways of seawater from the Bay of Bengal |
| title_short | Surface cross-equatorial pathways of seawater from the Bay of Bengal |
| title_sort | surface cross equatorial pathways of seawater from the bay of bengal |
| topic | cross-equatorial currents Lagrangian tracer meridional salt transport meridional heat transport Eastern Indian Ocean |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1101716/full |
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