Frazil Ice in the Antarctic Marginal Ice Zone

被引：4

作者：

Paul, Felix ^{[1
,2
]}

Mielke, Tommy ^{[1
,2
]}

Schwarz, Carina ^{[3
]}

Schroeder, Joerg ^{[3
]}

Rampai, Tokoloho ^{[4
,5
]}

Skatulla, Sebastian ^{[5
,6
]}

Audh, Riesna R. ^{[5
,7
]}

Hepworth, Ehlke ^{[5
,7
]}

Vichi, Marcello ^{[5
,7
]}

Lupascu, Doru C. ^{[1
,2
]}

机构：

[1] Univ Duisburg Essen, Inst Mat Sci, D-45141 Essen, Germany

[2] Univ Duisburg Essen, Ctr Nanointegrat Duisburg Essen CENIDE, D-45141 Essen, Germany

[3] Univ Duisburg Essen, Inst Mech, D-45141 Essen, Germany

[4] Univ Cape Town, Dept Chem Engn, ZA-7701 Rondebosch, South Africa

[5] Univ Cape Town, Marine & Antarctic Res Ctr Innovat & Sustainabil, ZA-7700 Cape Town, South Africa

[6] Univ Cape Town, Dept Civil Engn, ZA-7701 Rondebosch, South Africa

[7] Univ Cape Town, Dept Oceanog, ZA-7701 Cape Town, South Africa

来源：

JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2021年 / 9卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

marginal ice zone; Antarctic; frazil ice; sea ice; grease ice; rheology; viscosity; SEA-ICE; WAVE-PROPAGATION; DISSIPATION; ATTENUATION; EVOLUTION; PANCAKE; POLAR; MODEL;

D O I：

10.3390/jmse9060647

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Frazil ice, consisting of loose disc-shaped ice crystals, is the first ice that forms in the annual cycle in the marginal ice zone (MIZ) of the Antarctic. A sufficient number of frazil ice crystals form the surface "grease ice" layer, playing a fundamental role in the freezing processes in the MIZ. As soon as the ocean waves are sufficiently damped by a frazil ice cover, a closed ice cover can form. In this article, we investigate the rheological properties of frazil ice, which has a crucial influence on the growth of sea ice in the MIZ. An in situ test setup for measuring temperature and rheological properties was developed. Frazil ice shows shear thinning flow behavior. The presented measurements enable real-data-founded modelling of the annual ice cycle in the MIZ.

引用

页数：8

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