Modulation of the Kuroshio Current on the M 2 internal tide energetics at the Luzon Strait.
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| Title: | Modulation of the Kuroshio Current on the M 2 internal tide energetics at the Luzon Strait. |
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| Authors: | Cao, Anzhou1 (AUTHOR) caoanzhou@zju.edu.cn, Guo, Zheng2 (AUTHOR), Chen, Xu3 (AUTHOR), Guo, Xinyu4 (AUTHOR), Song, Jinbao1 (AUTHOR) |
| Source: | Journal of Physical Oceanography. May2026, Vol. 56 Issue 5, p1-14. 14p. |
| Subjects: | Pacific Ocean currents, Stratified flow, Energy transfer |
| Geographic Terms: | Luzon Strait |
| Abstract: | Previous studies have demonstrated that the internal tides (ITs) near the Luzon Strait (LS) are significantly modulated by the Kuroshio Current (KC). However, the modulation, particularly the contributions of the KC's velocity and stratification to the modulation, remains incompletely understood. Based on the interaction theory between subtidal motions and ITs, and 9-month numerical simulation results, this study investigates the KC's modulation on the M2 IT energetics at the LS, with a focus on quantifying the contributions of the KC's velocity and stratification to the modulation. The KC directly modulates the IT energy budget through the buoyancy production, shear production and advection. Among them, the buoyancy production, associated with the KC's stratification, dominates over the shear production and advection, which are related to the KC's velocity. Furthermore, the KC influences the tidal conversion and energy flux of ITs by changing the pressure perturbation as well as barotropic and baroclinic tidal currents through nonlinear interaction with ITs. Sensitivity analysis indicates that the bottom pressure perturbation plays a more important role in the tidal conversion, whereas the baroclinic tidal currents are more crucial in the energy flux. Further analysis shows that the contributions of KC's velocity and stratification to the buoyancy and pressure perturbation are generally comparable. Moreover, the KC's velocity plays a more important role than the stratification in determining the phase speed of ITs, which leads to different energy flux patterns under different KC paths. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Physical Oceanography is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 194578072 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Modulation of the Kuroshio Current on the M 2 internal tide energetics at the Luzon Strait. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cao%2C+Anzhou%22">Cao, Anzhou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> caoanzhou@zju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Zheng%22">Guo, Zheng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Xu%22">Chen, Xu</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Xinyu%22">Guo, Xinyu</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Jinbao%22">Song, Jinbao</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Physical+Oceanography%22">Journal of Physical Oceanography</searchLink>. May2026, Vol. 56 Issue 5, p1-14. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Pacific+Ocean+currents%22">Pacific Ocean currents</searchLink><br /><searchLink fieldCode="DE" term="%22Stratified+flow%22">Stratified flow</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+transfer%22">Energy transfer</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Luzon+Strait%22">Luzon Strait</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Previous studies have demonstrated that the internal tides (ITs) near the Luzon Strait (LS) are significantly modulated by the Kuroshio Current (KC). However, the modulation, particularly the contributions of the KC's velocity and stratification to the modulation, remains incompletely understood. Based on the interaction theory between subtidal motions and ITs, and 9-month numerical simulation results, this study investigates the KC's modulation on the M2 IT energetics at the LS, with a focus on quantifying the contributions of the KC's velocity and stratification to the modulation. The KC directly modulates the IT energy budget through the buoyancy production, shear production and advection. Among them, the buoyancy production, associated with the KC's stratification, dominates over the shear production and advection, which are related to the KC's velocity. Furthermore, the KC influences the tidal conversion and energy flux of ITs by changing the pressure perturbation as well as barotropic and baroclinic tidal currents through nonlinear interaction with ITs. Sensitivity analysis indicates that the bottom pressure perturbation plays a more important role in the tidal conversion, whereas the baroclinic tidal currents are more crucial in the energy flux. Further analysis shows that the contributions of KC's velocity and stratification to the buoyancy and pressure perturbation are generally comparable. Moreover, the KC's velocity plays a more important role than the stratification in determining the phase speed of ITs, which leads to different energy flux patterns under different KC paths. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Physical Oceanography is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1175/JPO-D-25-0083.1 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1 Subjects: – SubjectFull: Pacific Ocean currents Type: general – SubjectFull: Stratified flow Type: general – SubjectFull: Energy transfer Type: general – SubjectFull: Luzon Strait Type: general Titles: – TitleFull: Modulation of the Kuroshio Current on the M 2 internal tide energetics at the Luzon Strait. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cao, Anzhou – PersonEntity: Name: NameFull: Guo, Zheng – PersonEntity: Name: NameFull: Chen, Xu – PersonEntity: Name: NameFull: Guo, Xinyu – PersonEntity: Name: NameFull: Song, Jinbao IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00223670 Numbering: – Type: volume Value: 56 – Type: issue Value: 5 Titles: – TitleFull: Journal of Physical Oceanography Type: main |
| ResultId | 1 |
