Brief communication: Grease Ice in the Antarctic Marginal Ice Zone
Frazil ice, consisting of loose disc-shaped ice crystals, is the very first ice that forms in the annual cycle in the marginal ice zone (MIZ) of the Antarctic. A sufficient number of frazil ice crystals forms the surface <q>grease ice</q> layer taking a fundamental role in the freezing p...
Main Authors: | , , , , , , , , , |
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Format: | Text |
Language: | English |
Published: |
2021
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Subjects: | |
Online Access: | https://doi.org/10.5194/tc-2020-362 https://tc.copernicus.org/preprints/tc-2020-362/ |
Summary: | Frazil ice, consisting of loose disc-shaped ice crystals, is the very first ice that forms in the annual cycle in the marginal ice zone (MIZ) of the Antarctic. A sufficient number of frazil ice crystals forms the surface <q>grease ice</q> layer taking a fundamental role in the freezing processes in the MIZ. As soon as the ocean waves are sufficiently damped, a closed ice cover can form. In this brief communication we investigate the rheological properties of frazil ice, which has a crucial influence on the growth of sea ice in the MIZ. Grease ice shows shear thinning flow behavior. |
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