Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice
Observation on the seasonal variation of temperature and salinity of seawater was carried out through an ice hole at a station near Syowa Station as part of the 25th Japanese Antarctic Research Expedition. During the period from March 1984 to January 1985,temperature salinity stratification was obse...
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National Institute of Polar Research
1990
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ftdoajarticles:oai:doaj.org/article:43a0c40dc4764cb3b37482c2b43bd05f 2023-05-15T13:36:10+02:00 Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice Osamu Matsuda Shingo Ishikawa Kouichi Kawaguchi 1990-11-01T00:00:00Z https://doi.org/10.15094/00008691 https://doaj.org/article/43a0c40dc4764cb3b37482c2b43bd05f EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008691 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008691 0085-7289 2432-079X https://doaj.org/article/43a0c40dc4764cb3b37482c2b43bd05f Antarctic Record, Vol 34, Iss 3, Pp 357-362 (1990) Geography (General) G1-922 article 1990 ftdoajarticles https://doi.org/10.15094/00008691 2022-12-30T22:56:50Z Observation on the seasonal variation of temperature and salinity of seawater was carried out through an ice hole at a station near Syowa Station as part of the 25th Japanese Antarctic Research Expedition. During the period from March 1984 to January 1985,temperature salinity stratification was observed only in summer in the upper layers of the seawater. In order to clarify the microstructure of the stratification, fine-scale observations on temperature and salinity profiles were conducted through the ice hole with the use of the CSTD monitor at the depth intervals from 5 to 10 cm on January 6,1985. The results revealed that an intensified halocline occurred at the depth between 120 and 150 cm, where salinity changed considerably from 3.33 to 27.88‰. This observed halocline is supposed to exist in the underlying seawater immediately below sea ice around the ice hole. Such a condition may naturally occur in the area of paddles with thawing holes and cracks. Ice algae inhabiting the undersurface of ice may be physiologically affected by the extremely low salinity of the underlying seawater. Article in Journal/Newspaper Antarc* Antarctic ice algae Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Syowa Station |
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 Osamu Matsuda Shingo Ishikawa Kouichi Kawaguchi Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
topic_facet |
Geography (General) G1-922 |
description |
Observation on the seasonal variation of temperature and salinity of seawater was carried out through an ice hole at a station near Syowa Station as part of the 25th Japanese Antarctic Research Expedition. During the period from March 1984 to January 1985,temperature salinity stratification was observed only in summer in the upper layers of the seawater. In order to clarify the microstructure of the stratification, fine-scale observations on temperature and salinity profiles were conducted through the ice hole with the use of the CSTD monitor at the depth intervals from 5 to 10 cm on January 6,1985. The results revealed that an intensified halocline occurred at the depth between 120 and 150 cm, where salinity changed considerably from 3.33 to 27.88‰. This observed halocline is supposed to exist in the underlying seawater immediately below sea ice around the ice hole. Such a condition may naturally occur in the area of paddles with thawing holes and cracks. Ice algae inhabiting the undersurface of ice may be physiologically affected by the extremely low salinity of the underlying seawater. |
format |
Article in Journal/Newspaper |
author |
Osamu Matsuda Shingo Ishikawa Kouichi Kawaguchi |
author_facet |
Osamu Matsuda Shingo Ishikawa Kouichi Kawaguchi |
author_sort |
Osamu Matsuda |
title |
Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
title_short |
Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
title_full |
Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
title_fullStr |
Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
title_full_unstemmed |
Fine-scale observation on salinity stratification in an ice hole during melting season of Antarctic sea ice |
title_sort |
fine-scale observation on salinity stratification in an ice hole during melting season of antarctic sea ice |
publisher |
National Institute of Polar Research |
publishDate |
1990 |
url |
https://doi.org/10.15094/00008691 https://doaj.org/article/43a0c40dc4764cb3b37482c2b43bd05f |
geographic |
Antarctic Syowa Station |
geographic_facet |
Antarctic Syowa Station |
genre |
Antarc* Antarctic ice algae Sea ice |
genre_facet |
Antarc* Antarctic ice algae Sea ice |
op_source |
Antarctic Record, Vol 34, Iss 3, Pp 357-362 (1990) |
op_relation |
https://doi.org/10.15094/00008691 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008691 0085-7289 2432-079X https://doaj.org/article/43a0c40dc4764cb3b37482c2b43bd05f |
op_doi |
https://doi.org/10.15094/00008691 |
_version_ |
1766075025963614208 |