University of Cambridge > Talks.cam > British Antarctic Survey - Polar Oceans seminar series > Boundary layer turbulence below ice shelves in the shear-dominated regime

Boundary layer turbulence below ice shelves in the shear-dominated regime

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If you have a question about this talk, please contact Dr. Shenjie Zhou.

Large-eddy simulations have been a fruitful tool for studying ocean turbulence in the ice ocean boundary layer of sea ice and ice shelves. In this study, we used large-eddy simulations to examine the ice-shelf ocean boundary layer in a regime in which shear controls the rate of melting, modulated by stable stratification. Here, I focus on the turbulence characteristics, boundary layer structure, and melt rate as thermal driving and ice-shelf basal slope vary. I consider commonly-used parameterizations of ice-shelf melting and show that the melt rate scales approximately linearly with thermal driving, as parameterized, but mixing efficiency increases with basal slope, which is not parameterized. I close with some perspectives on using coarse-resolution models for ice-shelf melt projections.

This talk is part of the British Antarctic Survey - Polar Oceans seminar series series.

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