2014
DOI: 10.1175/jpo-d-12-0149.1
|View full text |Cite
|
Sign up to set email alerts
|

Upscale Energy Transfer by the Vortical Mode and Internal Waves

Abstract: Diapycnal mixing in the ocean is sporadic yet ubiquitous, leading to patches of mixing on a variety of scales. The adjustment of such mixed patches can lead to the formation of vortices and other small-scale geostrophic motions, which are thought to enhance lateral diffusivity. If vortices are densely populated, they can interact and merge, and upscale energy transfer can occur. Vortex interaction can also be modified by internal waves, thus impacting upscale transfer. Numerical experiments were used to study … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
9
0

Year Published

2015
2015
2024
2024

Publication Types

Select...
8

Relationship

1
7

Authors

Journals

citations
Cited by 12 publications
(9 citation statements)
references
References 67 publications
0
9
0
Order By: Relevance
“…One can estimate that globally the small-scale dissipation is between 20% and 25% of the available energy, thus alleviating the long-standing issue in ocean and climate dynamics concerning the amount of energy dissipation. Performing modeling of such flows may mis-represent small-scale statistics, as shown for example in [32], but recent numerical experiments at moderate resolution using such a technique [33] do find an inverse cascade of energy for Boussinesq flows. The findings presented herein thus might help devise more realistic turbulence closures for the atmosphere and ocean.…”
Section: Discussionmentioning
confidence: 99%
“…One can estimate that globally the small-scale dissipation is between 20% and 25% of the available energy, thus alleviating the long-standing issue in ocean and climate dynamics concerning the amount of energy dissipation. Performing modeling of such flows may mis-represent small-scale statistics, as shown for example in [32], but recent numerical experiments at moderate resolution using such a technique [33] do find an inverse cascade of energy for Boussinesq flows. The findings presented herein thus might help devise more realistic turbulence closures for the atmosphere and ocean.…”
Section: Discussionmentioning
confidence: 99%
“…Observationally, submesoscale processes are difficult to distinguish from internal waves (Bühler et al 2014) on account of their similar near-inertial timescales and the nonlinear interactions between the vorticity of the flow and the waves (Brunner-Suzuki et al 2014, Klein et al 2004. The strong vorticity of submesoscale dynamics is particularly effective in modifying near-inertial waves and their energy propagation (Kunze 1985), which has implications for the transfer of energy from one scale to another.…”
Section: Nonlinear Interactionsmentioning
confidence: 99%
“…They have been observed in geophysical flows, e.g. where the atmosphere acts like a 2D flow at large scale and as a 3D flow at small scales [77][78][79][80][81][82][83][84][85] and in the ocean [86,87]. Similar behaviour has been attributed to astrophysical flows (like the atmosphere of Venus and Jupiter [88,89], and accretion discs [90]), in plasma flows [91] and in industrial applications (like in tokamak [92]) either due to the thinness of the layer, to fast rotation or to the presence of strong magnetic fields.…”
Section: Introductionmentioning
confidence: 98%