Structure of refrozen cracks in first-year sea ice
The structure of natural refrozen cracks in landfast first-year sea ice in McMurdo Sound, Antarctica, is examined in Spring. The alignment of inclusions, crystal structure, and two-dimensional salinity profiles are discussed and compared to freezing experiments on slots cut in sea ice sheets. The in...
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Canadian Science Publishing
2003
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Online Access: | http://dx.doi.org/10.1139/p03-032 http://www.nrcresearchpress.com/doi/pdf/10.1139/p03-032 |
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crcansciencepubl:10.1139/p03-032 2023-12-17T10:21:03+01:00 Structure of refrozen cracks in first-year sea ice Petrich, C Haskell, T G Langhorne, P J 2003 http://dx.doi.org/10.1139/p03-032 http://www.nrcresearchpress.com/doi/pdf/10.1139/p03-032 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Physics volume 81, issue 1-2, page 293-299 ISSN 0008-4204 1208-6045 General Physics and Astronomy journal-article 2003 crcansciencepubl https://doi.org/10.1139/p03-032 2023-11-19T13:39:12Z The structure of natural refrozen cracks in landfast first-year sea ice in McMurdo Sound, Antarctica, is examined in Spring. The alignment of inclusions, crystal structure, and two-dimensional salinity profiles are discussed and compared to freezing experiments on slots cut in sea ice sheets. The investigated cracks and slots are of the order of 2030 cm wide and grown in ice of about 12.2 m thickness. Convection in the water column during the phase transition is modelled with the Finite Volume Method. We find that inclusions seem to align with the freezing front, and suggest that the crystal structure and salinity profile are influenced by buoyancy-driven convection inside refreezing cracks. PACS Nos.: 46.50+a, 62.20Mk Article in Journal/Newspaper Antarc* Antarctica McMurdo Sound Sea ice Canadian Science Publishing (via Crossref) McMurdo Sound Canadian Journal of Physics 81 1-2 293 299 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Physics and Astronomy |
spellingShingle |
General Physics and Astronomy Petrich, C Haskell, T G Langhorne, P J Structure of refrozen cracks in first-year sea ice |
topic_facet |
General Physics and Astronomy |
description |
The structure of natural refrozen cracks in landfast first-year sea ice in McMurdo Sound, Antarctica, is examined in Spring. The alignment of inclusions, crystal structure, and two-dimensional salinity profiles are discussed and compared to freezing experiments on slots cut in sea ice sheets. The investigated cracks and slots are of the order of 2030 cm wide and grown in ice of about 12.2 m thickness. Convection in the water column during the phase transition is modelled with the Finite Volume Method. We find that inclusions seem to align with the freezing front, and suggest that the crystal structure and salinity profile are influenced by buoyancy-driven convection inside refreezing cracks. PACS Nos.: 46.50+a, 62.20Mk |
format |
Article in Journal/Newspaper |
author |
Petrich, C Haskell, T G Langhorne, P J |
author_facet |
Petrich, C Haskell, T G Langhorne, P J |
author_sort |
Petrich, C |
title |
Structure of refrozen cracks in first-year sea ice |
title_short |
Structure of refrozen cracks in first-year sea ice |
title_full |
Structure of refrozen cracks in first-year sea ice |
title_fullStr |
Structure of refrozen cracks in first-year sea ice |
title_full_unstemmed |
Structure of refrozen cracks in first-year sea ice |
title_sort |
structure of refrozen cracks in first-year sea ice |
publisher |
Canadian Science Publishing |
publishDate |
2003 |
url |
http://dx.doi.org/10.1139/p03-032 http://www.nrcresearchpress.com/doi/pdf/10.1139/p03-032 |
geographic |
McMurdo Sound |
geographic_facet |
McMurdo Sound |
genre |
Antarc* Antarctica McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctica McMurdo Sound Sea ice |
op_source |
Canadian Journal of Physics volume 81, issue 1-2, page 293-299 ISSN 0008-4204 1208-6045 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/p03-032 |
container_title |
Canadian Journal of Physics |
container_volume |
81 |
container_issue |
1-2 |
container_start_page |
293 |
op_container_end_page |
299 |
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1785529070373568512 |