Sea Ice Sieves

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Science  18 Dec 1998:
Vol. 282, Issue 5397, pp. 2149
DOI: 10.1126/science.282.5397.2149p

The properties of sea ice change dramatically with temperature. It abruptly becomes much more porous at temperatures above about −5° Celsius in contact with a typical brine; this change allows colonization by bacteria and transfer of fluid that carries heat and nutrients through the ice. Golden et al. (p. 2238) used percolation theory to explain this transition and resolve results from several experimental studies.

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