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RISEffects of Ambient Turbulence on Interleaving at a Baroclinic Front
Publisher: American Meteorological Society
Abstract: In this paper the authors investigate the action of ambient turbulence on thermohaline interleaving using both theory and numerical calculations in combination with observations from Meddy Sharon and the Faroe Front. The ...
Efficiency of Mixing Forced by Unsteady Shear Flow
Publisher: American Meteorological Society
Abstract: The dependence of mixing efficiency on time-varying forcing is studied by direct numerical simulation (DNS) of Kelvin?Helmholtz (KH) instability. Time-dependent forcing fields are designed to reproduce a wavelike oscillation ...
Instability and Diapycnal Momentum Transport in a Double-Diffusive, Stratified Shear Layer
Publisher: American Meteorological Society
Abstract: The linear stability of a double-diffusively stratified, inflectional shear flow is investigated. Double-diffusive stratification has little effect on shear instability except when the density ratio R? is close to unity. ...
Shear and Convective Turbulence in a Model of Thermohaline Intrusions
Publisher: American Meteorological Society
Abstract: Thermohaline interleaving is an important mechanism for laterally fluxing salt, heat, and nutrients between water masses. Interleaving is driven by a release of potential energy resulting from the differing diffusivities ...
Energetics of Bottom Ekman Layers during Buoyancy Arrest
Publisher: American Meteorological Society
Abstract: urbulent bottom Ekman layers are among the most important energy conversion sites in the ocean. Their energetics are notoriously complex, in particular near sloping topography, where the feedback between cross-slope Ekman ...
Oceanic Turbulent Energy Budget using Large-Eddy Simulation of a Wind Event during DYNAMO
Publisher: American Meteorological Society
Abstract: he dominant processes governing ocean mixing during an active phase of the Madden?Julian oscillation are identified. Air?sea fluxes and upper-ocean currents and hydrography, measured aboard the R/V Revelle during boreal ...
The Role of Turbulence in Redistributing Upper-Ocean Heat, Freshwater, and Momentum in Response to the MJO in the Equatorial Indian Ocean
Publisher: American Meteorological Society
Abstract: AbstractThe role of turbulent mixing in regulating the ocean?s response to the Madden?Julian oscillation (MJO) is assessed from measurements of surface forcing, acoustic, and microstructure profiles during October?early ...
Deep-Cycle Turbulence in the Upper Pacific Equatorial Ocean: Characterization by LES and Heat Flux Parameterization
Publisher: American Meteorological Society
Seasonality of Deep Cycle Turbulence in the Eastern Equatorial Pacific
Publisher: American Meteorological Society
Abstract: AbstractThe seasonal cycles of the various oceanic and atmospheric factors influencing the deep cycle of turbulence in the eastern Pacific cold tongue are explored. Moored observations at 140°W have shown seasonal variability ...
On the Formation of a Subsurface Weakly Sheared Laminar Layer and an Upper Thermocline Strongly Sheared Turbulent Layer in the Eastern Equatorial Pacific: Interplays of Multiple-Time-Scale Equatorial Waves
Publisher: American Meteorological Society
Abstract: The origins of an observed weakly sheared nonturbulent (laminar) layer (WSL), and a strongly sheared turbulent layer above the Equatorial Undercurrent core (UCL) in the eastern equatorial Pacific are studied, based mainly ...