What question did this study set out to answer?

To determine whether heat and salt exchange mechanisms across the ice-ocean interface operate symmetrically during ice growth and melting phases.

June 1, 2008Journal of Geophysical Research AtmospheresOpen Access

Revisiting heat and salt exchange at the ice‐ocean interface: Ocean flux and modeling considerations

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Authors

MMM. G. McPheeMcPhee Research (United States)JMJ. MorisonUniversity of Washington FNFrank NilsenEarth Science Institute of the Slovak Academy of Sciences

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Implication

Observational and modeling study demonstrates asymmetric heat and salt exchange during sea ice growth versus melt, indicating distinct interface transfer regimes.

Key Points

To determine whether heat and salt exchange mechanisms across the ice-ocean interface operate symmetrically during ice growth and melting phases.
Measured physical oceanographic properties and turbulent heat and salt fluxes beneath growing fast ice during late winter in a tidally driven Svalbard fjord.
Compared observational flux data with interface exchange models to evaluate the exchange coefficient ratio (R) and test for double-diffusive behavior.
Field observations during freezing showed no evidence of water supercooling, frazil crystal production, or enhanced heat flux, establishing that double diffusion is asymmetric.
Model comparisons with turbulent flux measurements indicate an interface exchange coefficient ratio of R = 1 during ice freezing, compared to R = 35 to 70 during ice melting.
Developed a new flux calculation algorithm parameterized with phase-specific interface exchange coefficients for ice-ocean interaction modeling.

Cite This Study

McPhee et al. (2008) studied this question.

synapsesocial.com/papers/69d4e9c4c3cf1453b6ba5a83 https://doi.org/10.1029/2007jc004383

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Implication

Observational and modeling study demonstrates asymmetric heat and salt exchange during sea ice growth versus melt, indicating distinct interface transfer regimes.

Revisiting heat and salt exchange at the ice‐ocean interface: Ocean flux and modeling considerations

Discussion

Member takes

Implication

Key Points

Cite This Study

Revisiting heat and salt exchange at the ice‐ocean interface: Ocean flux and modeling considerations

Discussion

Member takes

Implication

Key Points

Cite This Study

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