Remote versus local impacts of energy backscatter on the North Atlantic SST biases in a global ocean model

CY Chang, A Adcroft, L Zanna… - Geophysical …, 2023 - Wiley Online Library
The use of coarse resolution and strong grid‐scale dissipation has prevented global ocean
models from simulating the correct kinetic energy level. Recently parameterizing energy …

A Southern Ocean supergyre as a unifying dynamical framework identified by physics-informed machine learning

M Sonnewald, KA Reeve, R Lguensat - Communications Earth & …, 2023 - nature.com
Abstract The Southern Ocean closes the global overturning circulation and is key to the
regulation of carbon, heat, biological production, and sea level. However, the dynamics of …

A generalized theory of flow forcing by rough topography

T Radko - Journal of Fluid Mechanics, 2023 - cambridge.org
An analytical model is developed which explores the impact of irregular sea-floor roughness
on large-scale oceanic flows. The previously reported asymptotic 'sandpaper'theory of flow …

The role of bottom friction in mediating the response of the Weddell Gyre circulation to changes in surface stress and buoyancy fluxes

J Neme, MH England, AMC Hogg… - Journal of Physical …, 2024 - journals.ametsoc.org
Abstract The Weddell Gyre is one of the dominant features of the Southern Ocean circulation
and its dynamics have been linked to processes of climatic relevance. Variability in the …

Antarctic Slope Undercurrent and onshore heat transport driven by ice shelf melting

Y Si, AL Stewart, A Silvano, AC Naveira Garabato - Science Advances, 2024 - science.org
Elevated ice shelf melt rates in West Antarctica have been attributed to transport of warm
Circumpolar Deep Water (CDW) onto the continental shelf via bathymetric troughs. These …

Spin-down of a baroclinic vortex by irregular small-scale topography

T Radko - Journal of Fluid Mechanics, 2022 - cambridge.org
This study explores the impact of small-scale variability in the bottom relief on the dynamics
and evolution of broad baroclinic flows in the ocean. The analytical model presented here …

Circumpolar transport and overturning strength inferred from satellite observables using deep learning in an eddying Southern Ocean channel model

S Meng, AL Stewart… - Journal of Advances in …, 2024 - Wiley Online Library
Abstract The Southern Ocean connects the ocean's major basins via the Antarctic
Circumpolar Current (ACC), and closes the global meridional overturning circulation (MOC) …

The sandpaper theory of flow–topography interaction for multilayer shallow-water systems

T Radko - Journal of Fluid Mechanics, 2024 - cambridge.org
Seafloor roughness profoundly influences the pattern and dynamics of large-scale oceanic
flows. However, these kilometre-scale topographic patterns are unresolved by global …

Ocean barotropic vorticity balances: Theory and application to numerical models

R Waldman, H Giordani - Journal of Advances in Modeling …, 2023 - Wiley Online Library
The barotropic vorticity (BV) balance is fundamental when interpreting the ocean gyre
circulation. Here we propose an intercomparison of vorticity equations for the depth …

Formation of eastern boundary undercurrents via mesoscale eddy rectification

AL Stewart, Y Wang, A Solodoch… - Journal of Physical …, 2024 - journals.ametsoc.org
Abstract Eastern Boundary Upwelling Systems (EBUSs) host equatorward wind-driven near-
surface currents overlying poleward subsurface undercurrents. Various previous theories for …