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- Title
The Impact of Subtidal Circulation on Internal Tide Generation and Propagation in the Philippine Sea.
- Authors
Kerry, Colette G.; Powell, Brian S.; Carter, Glenn S.
- Abstract
This study examines the effects of the subtidal circulation on the generation and propagation of the M2 internal tide in the Philippine Sea using a primitive equation model. Barotropic to baroclinic conversion at the Luzon Strait is found to vary due to the background circulation changes over the generation site and the changing influence of remotely generated internal tides from the Mariana Arc. The varying effect of remotely generated waves results from both changing generation energy levels at the Mariana Arc and variability in the propagation of the internal tides across the Philippine Sea. The magnitude and direction of the depth-integrated baroclinic energy fluxes vary temporally, due to a combination of changing generation, propagation, and dissipation. Spatial patterns of internal tide propagation near the Luzon Strait are influenced by the locations of mesoscale eddies to the east and west of the strait. The results provide insight into the mechanisms of variability of the baroclinic tides and highlight the importance of considering both the remotely generated internal tides and the subtidal dynamics to estimate internal tide energetics.
- Subjects
PHILIPPINE Sea; LUZON Strait; TIDES; BAROTROPY; BAROCLINICITY; ENERGY dissipation; FLUID dynamics
- Publication
Journal of Physical Oceanography, 2014, Vol 44, Issue 5, p1386
- ISSN
0022-3670
- Publication type
Article
- DOI
10.1175/JPO-D-13-0142.1