Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica
A coastal polynya often forms around Lutzow-Holm Bay even in severe winter. To clarify the characteristics of oceanic structure in the polynya, the water mass of the convective-mixed layer was analyzed. Haline convection by the high ice production in the winter polynya contributes to the formation o...
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National Institute of Polar Research
1997
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ftdoajarticles:oai:doaj.org/article:7e4f1b1154ce43aaa734a0781dd34863 2023-05-15T14:01:45+02:00 Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica Shuki Ushio Takatoshi Takizawa Kay I. Ohshima Toshiyuki Kawamura 1997-03-01T00:00:00Z https://doi.org/10.15094/00008979 https://doaj.org/article/7e4f1b1154ce43aaa734a0781dd34863 EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00008979 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008979 0085-7289 2432-079X https://doaj.org/article/7e4f1b1154ce43aaa734a0781dd34863 Antarctic Record, Vol 41, Iss 1, Pp 329-334 (1997) Geography (General) G1-922 article 1997 ftdoajarticles https://doi.org/10.15094/00008979 2022-12-31T12:42:51Z A coastal polynya often forms around Lutzow-Holm Bay even in severe winter. To clarify the characteristics of oceanic structure in the polynya, the water mass of the convective-mixed layer was analyzed. Haline convection by the high ice production in the winter polynya contributes to the formation of a thicker mixed layer than that in the pack ice region. Furthermore, the active convection leads to entrainment of the oxygen-poor deep water underlying the winter mixed layer. Consequently, in the polynya located over the continental shelf break, the oxygen content of the mixed layer is somewhat lower than that in the other polynya, Breid Bay, where haline convection reaches only to the shallow sea bottom of the continental shelf. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Breid Bay ENVELOPE(24.083,24.083,-70.250,-70.250) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Shuki Ushio Takatoshi Takizawa Kay I. Ohshima Toshiyuki Kawamura Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
topic_facet |
Geography (General) G1-922 |
description |
A coastal polynya often forms around Lutzow-Holm Bay even in severe winter. To clarify the characteristics of oceanic structure in the polynya, the water mass of the convective-mixed layer was analyzed. Haline convection by the high ice production in the winter polynya contributes to the formation of a thicker mixed layer than that in the pack ice region. Furthermore, the active convection leads to entrainment of the oxygen-poor deep water underlying the winter mixed layer. Consequently, in the polynya located over the continental shelf break, the oxygen content of the mixed layer is somewhat lower than that in the other polynya, Breid Bay, where haline convection reaches only to the shallow sea bottom of the continental shelf. |
format |
Article in Journal/Newspaper |
author |
Shuki Ushio Takatoshi Takizawa Kay I. Ohshima Toshiyuki Kawamura |
author_facet |
Shuki Ushio Takatoshi Takizawa Kay I. Ohshima Toshiyuki Kawamura |
author_sort |
Shuki Ushio |
title |
Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
title_short |
Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
title_full |
Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
title_fullStr |
Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
title_full_unstemmed |
Ice production and convective mixing in the coastal polynya off Lutzow-Holm Bay, Antarctica |
title_sort |
ice production and convective mixing in the coastal polynya off lutzow-holm bay, antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1997 |
url |
https://doi.org/10.15094/00008979 https://doaj.org/article/7e4f1b1154ce43aaa734a0781dd34863 |
long_lat |
ENVELOPE(24.083,24.083,-70.250,-70.250) |
geographic |
Breid Bay |
geographic_facet |
Breid Bay |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Antarctic Record, Vol 41, Iss 1, Pp 329-334 (1997) |
op_relation |
http://doi.org/10.15094/00008979 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008979 0085-7289 2432-079X https://doaj.org/article/7e4f1b1154ce43aaa734a0781dd34863 |
op_doi |
https://doi.org/10.15094/00008979 |
_version_ |
1766271789377257472 |