On the modifications of near-inertial waves at fronts: implications for energy transfer across scales
In the ocean, wind-generated kinetic energy (KE) manifests itself primarily in balanced currents and near-inertial waves. The dynamics of these flows is strongly constrained by the Earth’s rotation, causing the KE in balanced currents to follow an inverse cascade but also preventing wave-wave intera...
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| Veröffentlicht in: | Ocean dynamics 2017-10, Vol.67 (10), p.1335-1350 |
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| creator | Thomas, Leif N. |
| description | In the ocean, wind-generated kinetic energy (KE) manifests itself primarily in balanced currents and near-inertial waves. The dynamics of these flows is strongly constrained by the Earth’s rotation, causing the KE in balanced currents to follow an inverse cascade but also preventing wave-wave interactions from fluxing energy in the near-inertial band to lower frequencies and higher vertical wavenumbers. How wind-generated KE is transferred to small-scale turbulence and dissipated is thus a non-trivial problem. This article presents a review of recent theoretical calculations and numerical simulations that demonstrate how some surprising modifications to internal wave physics by the lateral density gradients present at ocean fronts allow for strong interactions between balanced currents and near-inertial waves that ultimately result in energy loss for both types of motion. |
| doi_str_mv | 10.1007/s10236-017-1088-6 |
| format | Article |
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| subjects | 23-27 May 2016 Atmospheric Sciences Balances (scales) Belgium Computational fluid dynamics Computer simulation Density gradients Dissipation Dynamics Earth Earth and Environmental Science Earth rotation Earth Sciences Energy loss Energy transfer Fluid mechanics Fluid- and Aerodynamics Fluxing Fronts Geophysics/Geodesy Gradients Inertial waves Interactions Internal waves Kinetic energy Kinetics Liège Monitoring/Environmental Analysis Numerical simulations Ocean currents Ocean waves Oceanic fronts Oceanography Oceans Physics Rotation Small-scale turbulence Topical Collection on the 48th International Liège Colloquium on Ocean Dynamics Turbulence Turbulent flow Wave interactions Wave physics |
| title | On the modifications of near-inertial waves at fronts: implications for energy transfer across scales |
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