Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport
Abstract The Luzon Strait Deep Overflow (LZDO) transports deep‐water masses from the Pacific Ocean (upstream) to the South China Sea (SCS, downstream), playing a vital role in shaping the hydrographic and biogeochemical structure and regulating abyssal circulation within the SCS. Recent studies sugg...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2024GL112817 |
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| _version_ | 1832593489913708544 |
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| author | Lei Chen Jiayan Yang Lixin Wu |
| author_facet | Lei Chen Jiayan Yang Lixin Wu |
| author_sort | Lei Chen |
| collection | DOAJ |
| description | Abstract The Luzon Strait Deep Overflow (LZDO) transports deep‐water masses from the Pacific Ocean (upstream) to the South China Sea (SCS, downstream), playing a vital role in shaping the hydrographic and biogeochemical structure and regulating abyssal circulation within the SCS. Recent studies suggest that the seasonal variability of LZDO transport is primarily wind‐driven; however, the specific mechanisms and key wind‐forcing areas remain unclear. In this study, we use numerical model experiments to demonstrate that the seasonal variability of the LZDO is driven by wind stress both within the downstream SCS and upstream Pacific Ocean. This finding contrasts with previous views that considered the LZDO hydraulically controlled at the Luzon Strait sill and thus influenced solely by the upstream Pacific Ocean forcing. Additionally, we identify that the LZDO is particularly sensitive to wind forcing in specific North Pacific regions where geostrophic contours connect to the Luzon Strait due to topographic effects. |
| format | Article |
| id | doaj-art-a2968b72cc064598a781d819b30f07e5 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-a2968b72cc064598a781d819b30f07e52025-01-20T13:05:57ZengWileyGeophysical Research Letters0094-82761944-80072025-01-01521n/an/a10.1029/2024GL112817Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow TransportLei Chen0Jiayan Yang1Lixin Wu2Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory Ocean University of China Qingdao ChinaDepartment of Physical Oceanography Woods Hole Oceanographic Institution Woods Hole MA USAFrontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory Ocean University of China Qingdao ChinaAbstract The Luzon Strait Deep Overflow (LZDO) transports deep‐water masses from the Pacific Ocean (upstream) to the South China Sea (SCS, downstream), playing a vital role in shaping the hydrographic and biogeochemical structure and regulating abyssal circulation within the SCS. Recent studies suggest that the seasonal variability of LZDO transport is primarily wind‐driven; however, the specific mechanisms and key wind‐forcing areas remain unclear. In this study, we use numerical model experiments to demonstrate that the seasonal variability of the LZDO is driven by wind stress both within the downstream SCS and upstream Pacific Ocean. This finding contrasts with previous views that considered the LZDO hydraulically controlled at the Luzon Strait sill and thus influenced solely by the upstream Pacific Ocean forcing. Additionally, we identify that the LZDO is particularly sensitive to wind forcing in specific North Pacific regions where geostrophic contours connect to the Luzon Strait due to topographic effects.https://doi.org/10.1029/2024GL112817 |
| spellingShingle | Lei Chen Jiayan Yang Lixin Wu Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport Geophysical Research Letters |
| title | Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport |
| title_full | Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport |
| title_fullStr | Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport |
| title_full_unstemmed | Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport |
| title_short | Upstream and Downstream Wind‐Stress Forcing of Seasonal Variability of Luzon Strait Deep Overflow Transport |
| title_sort | upstream and downstream wind stress forcing of seasonal variability of luzon strait deep overflow transport |
| url | https://doi.org/10.1029/2024GL112817 |
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