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This study examines how the roughness of seamounts impacts turbulent mixing and dissipation in ocean flows.

Turbulent Mixing and Dissipation Around Rough Seamounts

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Randomized trial investigates turbulent dissipation in seamounts, suggesting model adjustments may be necessary.

This study examines how the roughness of seamounts impacts turbulent mixing and dissipation in ocean flows.
Utilized turbulence-resolving large-eddy simulations to analyze flow dynamics.
Compared flows around realistic rough seamounts against smoothed bathymetry versions.
Focused on seamounts in the Southern Ocean with low slope Burger numbers.
Found that dissipation and mixing rates vary by an order of magnitude between rough and smoothed seamounts.
Identified that roughness effects are most significant in regions with fast flows in the Southern Ocean.
Highlighted that a model horizontal spacing of at least 100 m may be needed to capture full wake energetics.

Chor et al. (2026) studied this question.

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