The effect of a salinity gradient on the dissolution of a vertical ice face

CD McConnochie, RC Kerr - Journal of Fluid Mechanics, 2016 - cambridge.org
Journal of Fluid Mechanics, 2016cambridge.org
We investigate experimentally the effect of stratification on a vertical ice face dissolving into
cold salty water. We measure the interface temperature, ablation velocity and turbulent
plume velocity over a range of salinity gradients and compare our measurements with
results of similar experiments without a salinity gradient (Kerr & McConnochie, J. Fluid
Mech., vol. 765, 2015, pp. 211–228; McConnochie & Kerr, J. Fluid Mech., vol. 787, 2016, pp.
237–253). We observe that stratification acts to reduce the ablation velocity, interface …
We investigate experimentally the effect of stratification on a vertical ice face dissolving into cold salty water. We measure the interface temperature, ablation velocity and turbulent plume velocity over a range of salinity gradients and compare our measurements with results of similar experiments without a salinity gradient (Kerr & McConnochie, J. Fluid Mech., vol. 765, 2015, pp. 211–228; McConnochie & Kerr, J. Fluid Mech., vol. 787, 2016, pp. 237–253). We observe that stratification acts to reduce the ablation velocity, interface temperature, plume velocity and plume acceleration. We define a stratification parameter, . Finally, we calculate values for the stratification parameter at a number of ice shelves and conclude that ocean stratification will have a significant effect on the dissolution of both the Antarctic and Greenland ice sheets.
Cambridge University Press
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