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Heat and salt transfer associated with formation of sea-ice Cover

Heat and salt transfer associated with formation of sea-ice

By:   
Open Access
|Jan 1977

Abstract

The transient state of sea-ice formation due to a given constant drop in surface temperature, and the associated change in sea-water salinity due to salt rejection, has been investigated theoretically by the heat balance integral method. The water temperature is taken to be constant. Ice, water and salt were assumed to coexist in thermodynamic equilibrium at the ice”water interface, and the analysis is valid for small temperature perturbations. The ice growth rate is found to be considerably reduced due to the depression of the freezing point caused by salt rejection. Utilizing Foster's (1968) results, haline convection with typical wavelength 1–2 mm is found to occur after a characteristic time of order 1 min. Results are also presented for the ice growth problem when the ice”water interface can be regarded as a constant temperature boundary. Some effects of variable thermal properties due to brine trapping in the ice are taken into account. The case of a time-dependent surface temperature is also considered.

Language: English
Page range: 151 - 160
Submitted on: Jan 1, 1976
Accepted on: Jun 14, 1975
Published on: Jan 1, 1977
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services

© 1977 J. E. Weber, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.