Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Spatial distribution of turbulent diapycnal mixing along the Mindanao current inferred from rapid-sampling Argo floats | |
He, Ying1,3; Wang, Jianing1,2,3 ; Wang, Fan1,2,3; Hibiya, Toshiyuki4
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| 2022 | |
| Source Publication | JOURNAL OF OCEANOGRAPHY
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| ISSN | 0916-8370 |
| Pages | 14 |
| Corresponding Author | Wang, Jianing(win@qdio.ac.cn) ; Wang, Fan(fwang@qdio.ac.cn) |
| Abstract | The Mindanao Current (MC) bridges the North Pacific low-latitude western boundary current system region and the Indonesian Seas by supplying the North Pacific waters to the Indonesian Throughflow. Although the previous study speculated that the diapycnal mixing along the MC might be strong on the basis of the water mass analysis of the gridded climatologic dataset, the real spatial distribution of diapycnal mixing along the MC has remained to be clarified. We tackle this question here by applying a finescale parameterization to temperature and salinity profiles obtained using two rapid-sampling profiling Argo floats that drifted along the MC. The western boundary (WB) region close to the Mindanao Islands and the Sangihe Strait are the two mixing hotspots along the MC, with energy dissipation rate epsilon and diapycnal diffusivity K-rho enhanced up to similar to 10(-6) W kg(-1) and similar to 10(-3) m(2) s(-1), respectively. Except for the above two mixing hotspots, the turbulent mixing along the MC is mostly weak, with epsilon and K-rho to be 10(-11)-10(-9) W kg(-1) and 10(-6)-10(-5) m(2) s(-1), respectively. Strong mixing in the Sangihe Strait can be basically attributed to the existence of internal tides, whereas strong mixing in the WB region suggests the existence of internal lee waves. We also find that water mass transformation along the MC mainly occurs in the Sangihe Strait where the water masses are subjected to strong turbulent mixing during a long residence time. |
| Keyword | Turbulent diapycnal mixing Mindanao current Indonesian throughflow Water mass transformation Internal tides Internal lee waves |
| DOI | 10.1007/s10872-021-00624-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[91958204] ; National Natural Science Foundation of China[41776022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS034] ; China Scholarship Council (CSC) |
| WOS Research Area | Oceanography |
| WOS Subject | Oceanography |
| WOS ID | WOS:000736938500001 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/177645 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Wang, Jianing; Wang, Fan |
| Affiliation | 1.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Tokyo, Japan |
| First Author Affilication | Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Corresponding Author Affilication | Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | He, Ying,Wang, Jianing,Wang, Fan,et al. Spatial distribution of turbulent diapycnal mixing along the Mindanao current inferred from rapid-sampling Argo floats[J]. JOURNAL OF OCEANOGRAPHY,2022:14. |
| APA | He, Ying,Wang, Jianing,Wang, Fan,&Hibiya, Toshiyuki.(2022).Spatial distribution of turbulent diapycnal mixing along the Mindanao current inferred from rapid-sampling Argo floats.JOURNAL OF OCEANOGRAPHY,14. |
| MLA | He, Ying,et al."Spatial distribution of turbulent diapycnal mixing along the Mindanao current inferred from rapid-sampling Argo floats".JOURNAL OF OCEANOGRAPHY (2022):14. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| He2022_Article_Spati（12662KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | View | |
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