Goldilocks mixing in oceanic shear-induced turbulent overturns

A Mashayek, CP Caulfield, MH Alford - Journal of Fluid Mechanics, 2021 - cambridge.org
We present a new, simple and physically motivated parameterization, based on the ratio of
Thorpe and Ozmidov scales, for the irreversible turbulent flux coefficient. Importantly …

The Sensitivity of Southern Ocean Air‐Sea Carbon Fluxes to Background Turbulent Diapycnal Mixing Variability

E Ellison, A Mashayek, M Mazloff - Journal of Geophysical …, 2023 - Wiley Online Library
Abstract The Southern Ocean (SO) connects major ocean basins and hosts large air‐sea
carbon fluxes due to the resurfacing of deep nutrient and carbon‐rich waters. While wind …

Winter Vertical Diffusion Rates in the Arctic Ocean, Estimated From 7Be Measurements and Dissipation Rate Profiles

K Schulz, D Kadko, V Mohrholz… - Journal of …, 2023 - Wiley Online Library
Ocean turbulent mixing is a key process affecting the uptake and redistribution of heat,
carbon, nutrients, oxygen and other dissolved gasses. Vertical turbulent diffusivity sets the …

Submesoscales are a significant turbulence source in global ocean surface boundary layer

J Dong, B Fox-Kemper, JO Wenegrat… - Nature …, 2024 - nature.com
The turbulent ocean surface boundary layer is a key part of the climate system affecting both
the energy and carbon cycles. Accurately simulating the boundary layer is critical in …

Data‐driven identification of turbulent oceanic mixing from observational microstructure data

MMP Couchman, B Wynne‐Cattanach… - Geophysical …, 2021 - Wiley Online Library
Characterizing how ocean turbulence transports heat is critically important for accurately
parameterizing global circulation models. We present a novel data‐driven approach for …

Mixing across stable density interfaces in forced stratified turbulence

MMP Couchman, SM de Bruyn Kops… - Journal of Fluid …, 2023 - cambridge.org
Understanding how turbulence enhances irreversible scalar mixing in density-stratified
fluids is a central problem in geophysical fluid dynamics. While isotropic overturning regions …

[HTML][HTML] Contrasting internal tide turbulence in a tributary of the Whittard Canyon

H van Haren, F Mienis, G Duineveld - Continental Shelf Research, 2022 - Elsevier
Submarine canyons that incise continental slopes are considered an important conduit for
transport of suspended matter between shelf seas and deep-ocean. However, the exact …

The next decade of seismic oceanography: possibilities, challenges and solutions

A Dickinson, KL Gunn - Frontiers in Marine Science, 2022 - frontiersin.org
Seismic reflection profiling of thermohaline structure has the potential to transform our
understanding of oceanic mixing and circulation. This profiling, which is known as seismic …

Deep ocean learning of small scale turbulence

A Mashayek, N Reynard, F Zhai… - Geophysical …, 2022 - Wiley Online Library
Turbulent mixing at the sub‐meter scale is an essential component of the ocean's meridional
overturning circulation and its associated global redistribution of heat, carbon, nutrients …

Validating finescale parameterizations for the eastern Arctic Ocean internal wave field

TM Baumann, I Fer, K Schulz… - Journal of Geophysical …, 2023 - Wiley Online Library
Abstract In the Arctic Ocean, vertical transport of heat by turbulent mixing is ultimately
coupled to the sea‐ice cover, with immediate and far‐reaching impacts on the climate and …