Articles | Volume 12, issue 2
Ocean Sci., 12, 507–515, 2016
https://doi.org/10.5194/os-12-507-2016
Ocean Sci., 12, 507–515, 2016
https://doi.org/10.5194/os-12-507-2016

Research article 06 Apr 2016

Research article | 06 Apr 2016

Turbulent heat transfer as a control of platelet ice growth in supercooled under-ice ocean boundary layers

Miles G. McPhee et al.

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Short summary
Measurements of turbulent heat fluxes in tidally modulated flow of supercool seawater under Antarctic land-fast sea ice show that turbulent heat exchange at the ocean–ice boundary is characterized by the product of friction velocity and (negative) water temperature departure from freezing. Also, the conditions cause platelet ice growth to form on the underside of the sea ice which increases the hydraulic roughness (drag) of fast ice compared to ice without platelets.