Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean
The measurement of the chlorophyll α concentration of the surface water in the Southern Ocean was performed along the course of the icebreaker FUJI from December 1980 to March 1981 as a part of the 22nd Japanese Antarctic Research Expedition. The chlorophyll α concentration was low (less than 0.2mg/...
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National Institute of Polar Research
1983
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ftdoajarticles:oai:doaj.org/article:5a421b659e6341ee8353102b513ff740 2023-05-15T13:58:09+02:00 Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean Kentaro Watanabe Yasushi Nakajima 1983-01-01T00:00:00Z https://doi.org/10.15094/00008335 https://doaj.org/article/5a421b659e6341ee8353102b513ff740 EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008335 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008335 0085-7289 2432-079X https://doaj.org/article/5a421b659e6341ee8353102b513ff740 Antarctic Record, Iss 77, Pp 33-43 (1983) Geography (General) G1-922 article 1983 ftdoajarticles https://doi.org/10.15094/00008335 2022-12-31T01:11:07Z The measurement of the chlorophyll α concentration of the surface water in the Southern Ocean was performed along the course of the icebreaker FUJI from December 1980 to March 1981 as a part of the 22nd Japanese Antarctic Research Expedition. The chlorophyll α concentration was low (less than 0.2mg/m^3) in the Subtropical Water, which became a little higher in the Subantarctic Water and the maximum values of 0.50 and 0.24mg/m^3 were observed on the north side of the Antarctic Convergence (AC). The value was generally low in the open water south of the AC, but high values of 0.84 (58°S) and 0.58 (62°S) mg/m^3 were measured farther south of the AC in the southward and northward legs respectively. In or near the pack ice water, the chlorophyll α concentration formed a peak in the westward leg in December 1980 where the water temperature and salinity decreased. In a polynya surrounded by the fast ice, high values of 0.66 and 0.80mg/m^3 were recorded, whereas in the pack ice water, the value was low in the northward leg different from the results in the westward leg. These results suggest a relation between the chlorophyll α concentration and the presence of sea ice. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean The Antarctic |
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 Kentaro Watanabe Yasushi Nakajima Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
topic_facet |
Geography (General) G1-922 |
description |
The measurement of the chlorophyll α concentration of the surface water in the Southern Ocean was performed along the course of the icebreaker FUJI from December 1980 to March 1981 as a part of the 22nd Japanese Antarctic Research Expedition. The chlorophyll α concentration was low (less than 0.2mg/m^3) in the Subtropical Water, which became a little higher in the Subantarctic Water and the maximum values of 0.50 and 0.24mg/m^3 were observed on the north side of the Antarctic Convergence (AC). The value was generally low in the open water south of the AC, but high values of 0.84 (58°S) and 0.58 (62°S) mg/m^3 were measured farther south of the AC in the southward and northward legs respectively. In or near the pack ice water, the chlorophyll α concentration formed a peak in the westward leg in December 1980 where the water temperature and salinity decreased. In a polynya surrounded by the fast ice, high values of 0.66 and 0.80mg/m^3 were recorded, whereas in the pack ice water, the value was low in the northward leg different from the results in the westward leg. These results suggest a relation between the chlorophyll α concentration and the presence of sea ice. |
format |
Article in Journal/Newspaper |
author |
Kentaro Watanabe Yasushi Nakajima |
author_facet |
Kentaro Watanabe Yasushi Nakajima |
author_sort |
Kentaro Watanabe |
title |
Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
title_short |
Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
title_full |
Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
title_fullStr |
Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
title_full_unstemmed |
Surface distribution of chlorophyllα along the course of the FUJI(1980-81)in the Southern Ocean |
title_sort |
surface distribution of chlorophyllα along the course of the fuji(1980-81)in the southern ocean |
publisher |
National Institute of Polar Research |
publishDate |
1983 |
url |
https://doi.org/10.15094/00008335 https://doaj.org/article/5a421b659e6341ee8353102b513ff740 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Antarctic Record, Iss 77, Pp 33-43 (1983) |
op_relation |
https://doi.org/10.15094/00008335 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008335 0085-7289 2432-079X https://doaj.org/article/5a421b659e6341ee8353102b513ff740 |
op_doi |
https://doi.org/10.15094/00008335 |
_version_ |
1766266249767026688 |