Frazil Ice in the Antarctic Marginal Ice Zone
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....
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Faculty of Engineering and the Built Environment
2021
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ftunivcapetownir:oai:localhost:11427/35208 2023-05-15T13:32:18+02:00 Frazil Ice in the Antarctic Marginal Ice Zone Paul, Felix Mielke, Tommy Schwarz, Carina Schröder, Jörg Rampai, Tokoloho Skatulla, Sebastian Audh, Riesna R Hepworth, Ehlke Vichi, Marcello Lupascu, Doru C 2021-06-10 application/pdf http://hdl.handle.net/11427/35208 https://open.uct.ac.za/bitstream/11427/35208/1/jmse-09-00647-v2.pdf en eng Faculty of Engineering and the Built Environment http://hdl.handle.net/11427/35208 https://open.uct.ac.za/bitstream/11427/35208/1/jmse-09-00647-v2.pdf http://creativecommons.org/licenses/by/4.0/ CC-BY Journal of Marine Science and Engineering https://www.mdpi.com/journal/jmse 9 6 647 Journal Article 2021 ftunivcapetownir 2022-09-13T05:55:45Z 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. Article in Journal/Newspaper Antarc* Antarctic Sea ice University of Cape Town: OpenUCT Antarctic The Antarctic |
institution |
Open Polar |
collection |
University of Cape Town: OpenUCT |
op_collection_id |
ftunivcapetownir |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Paul, Felix Mielke, Tommy Schwarz, Carina Schröder, Jörg Rampai, Tokoloho Skatulla, Sebastian Audh, Riesna R Hepworth, Ehlke Vichi, Marcello Lupascu, Doru C |
spellingShingle |
Paul, Felix Mielke, Tommy Schwarz, Carina Schröder, Jörg Rampai, Tokoloho Skatulla, Sebastian Audh, Riesna R Hepworth, Ehlke Vichi, Marcello Lupascu, Doru C Frazil Ice in the Antarctic Marginal Ice Zone |
author_facet |
Paul, Felix Mielke, Tommy Schwarz, Carina Schröder, Jörg Rampai, Tokoloho Skatulla, Sebastian Audh, Riesna R Hepworth, Ehlke Vichi, Marcello Lupascu, Doru C |
author_sort |
Paul, Felix |
title |
Frazil Ice in the Antarctic Marginal Ice Zone |
title_short |
Frazil Ice in the Antarctic Marginal Ice Zone |
title_full |
Frazil Ice in the Antarctic Marginal Ice Zone |
title_fullStr |
Frazil Ice in the Antarctic Marginal Ice Zone |
title_full_unstemmed |
Frazil Ice in the Antarctic Marginal Ice Zone |
title_sort |
frazil ice in the antarctic marginal ice zone |
publisher |
Faculty of Engineering and the Built Environment |
publishDate |
2021 |
url |
http://hdl.handle.net/11427/35208 https://open.uct.ac.za/bitstream/11427/35208/1/jmse-09-00647-v2.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Journal of Marine Science and Engineering https://www.mdpi.com/journal/jmse 9 6 647 |
op_relation |
http://hdl.handle.net/11427/35208 https://open.uct.ac.za/bitstream/11427/35208/1/jmse-09-00647-v2.pdf |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766025697524973568 |