Atmospheric gravity waves: Processes and parameterization

U Achatz, MJ Alexander, E Becker… - Journal of the …, 2024 - journals.ametsoc.org
Atmospheric predictability from subseasonal to seasonal time scales and climate variability
are both influenced critically by gravity waves (GW). The quality of regional and global …

Wind-current feedback is an energy sink for oceanic internal waves

A Delpech, R Barkan, L Renault, J McWilliams… - Scientific Reports, 2023 - nature.com
Internal waves contain a large amount of energy in the ocean and are an important source of
turbulent mixing. Ocean mixing is relevant for climate because it drives vertical transport of …

A deep learning approach to extract internal tides scattered by geostrophic turbulence

H Wang, N Grisouard, H Salehipour… - Geophysical …, 2022 - Wiley Online Library
Extraction of internal tidal (IT) signals is central to the interpretation of Sea Surface Height
(SSH) data. The increased spatial resolution of future wide‐swath satellite missions poses a …

Eddy–internal wave interactions: Stimulated cascades in cross-scale kinetic energy and enstrophy fluxes

R Barkan, K Srinivasan… - Journal of Physical …, 2024 - journals.ametsoc.org
The interactions between oceanic mesoscale eddies, submesoscale currents, and internal
gravity waves (IWs) are investigated in submesoscale-resolving realistic simulations in the …

Oceanic eddies induce a rapid formation of an internal wave continuum

L Yang, R Barkan, K Srinivasan… - … Earth & Environment, 2023 - nature.com
Oceanic internal waves are a major driver for turbulent mixing in the ocean, which controls
the global overturning circulation and the oceanic heat and carbon transport. Internal waves …

Geostrophic eddies spread near-inertial wave energy to high frequencies

W Dong, O Bühler, KS Smith - Journal of Physical …, 2023 - journals.ametsoc.org
The generation of broadband wave energy frequency spectra from narrowband wave forcing
in geophysical flows remains a conundrum. In contrast to the long-standing view that …

Evolution of internal gravity waves in a mesoscale eddy simulated using a novel model

P Sebastia Saez, C Eden… - Journal of Physical …, 2024 - journals.ametsoc.org
We investigate the effect of wave–eddy interaction and dissipation of internal gravity waves
propagating in a coherent mesoscale eddy simulated using a novel numerical model called …

Energy cascade in the Garrett–Munk spectrum of internal gravity waves

Y Wu, Y Pan - Journal of Fluid Mechanics, 2023 - cambridge.org
We study the spectral energy transfer due to wave–triad interactions in the Garrett–Munk
spectrum of internal gravity waves based on a numerical evaluation of the collision integral …

Supply mechanisms of the geostrophic mode in rotating turbulence: interactions with self, waves and eddies

H Lam, A Delache, FS Godeferd - Journal of Fluid Mechanics, 2023 - cambridge.org
Direct numerical simulations are performed in rotating turbulence for different regimes at
various Rossby and inertial Reynolds numbers (. We propose a scale-by-scale analysis of …

Inertia-gravity-wave diffusion by geostrophic turbulence: the impact of flow time dependence

MR Cox, HA Kafiabad, J Vanneste - Journal of Fluid Mechanics, 2023 - cambridge.org
The scattering of three-dimensional inertia-gravity waves by a turbulent geostrophic flow
leads to the redistribution of their action through what is approximately a diffusion process in …