Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer
During the 1983-84 austral summer, Japanese geochemical studies in the Dry Valleys and Ross Island of the McMurdo Sound region in Antarctica were carried out to observe the annual variation of the vertical distribution of physicochemical properties of waters for Lakes Bonney and Vanda, to clarify th...
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National Institute of Polar Research
1985
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Online Access: | https://doi.org/10.15094/00008474 https://doaj.org/article/456bd33f808b4beab6de9f0dc2fdc89e |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:456bd33f808b4beab6de9f0dc2fdc89e 2023-05-15T13:47:18+02:00 Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer Genki I. Matsumoto Tetsuya Torii Tamio Kawano Tsurahide Cho Yoshiharu Kobata 1985-09-01 https://doi.org/10.15094/00008474 https://doaj.org/article/456bd33f808b4beab6de9f0dc2fdc89e en other eng National Institute of Polar Research doi:10.15094/00008474 0085-7289 2432-079X https://doaj.org/article/456bd33f808b4beab6de9f0dc2fdc89e undefined Antarctic Record, Iss 86, Pp 108-118 (1985) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 1985 fttriple https://doi.org/10.15094/00008474 2023-01-22T19:27:26Z During the 1983-84 austral summer, Japanese geochemical studies in the Dry Valleys and Ross Island of the McMurdo Sound region in Antarctica were carried out to observe the annual variation of the vertical distribution of physicochemical properties of waters for Lakes Bonney and Vanda, to clarify the changes of water quality of Lake Vanda for day and night, to characterize the physicochemical natures of lakes and ponds in the Labyrinth, South Fork and near Lake Vanda of the Wright Valley and around McMurdo Station of Ross Island, and to determine total carbonate materials (H_2CO_3+HCO^-_3+CO^_3=ΣCO_2) in lake and pond waters. The vertical distribution of physicochemical properties of Lakes Bonney and Vanda was similar to those of previous studies, indicating that the stratification of lake waters is still stable. Any remarkable changes in the vertical distribution of the water quality of Lake Vanda for day and night were not observed. The lakes and ponds in the Labyrinth (18 ponds), South Fork (3), near Lake Vanda (2), and sorroundings of McMurdo Station (2) studied were generally small and thus chlorinity varied considerably during these 10 years. The ponds with high pH values (>10) found in the Labyrinth and South Fork were considered to be mainly attributable to the photosynthetic activity of epibenthic organisms, which are widely distributed there. The ponds with extremely high dissolved oxygen (20-35ml/l) were also found in the Labyrinth as in the case of the surface waters of Lakes Bonney and Joyce in the Dry Valleys. The contents of the total carbonate materials for a depth of 15m to the bottom in the west lobe of Lake Bonney (55-69mM) were much higher than those of the lakes and ponds (>0.05-7.5mM) in the McMurdo Sound region, interesting in relation to their sources. Article in Journal/Newspaper Antarc* Antarctica McMurdo Sound Ross Island Unknown Austral Bonney ENVELOPE(162.417,162.417,-77.717,-77.717) Labyrinth ENVELOPE(160.833,160.833,-77.550,-77.550) Lake Bonney ENVELOPE(-25.588,-25.588,-80.361,-80.361) Lake Vanda ENVELOPE(161.600,161.600,-77.517,-77.517) McMurdo Sound McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Island South Fork ENVELOPE(161.250,161.250,-77.567,-77.567) Vanda ENVELOPE(161.550,161.550,-77.533,-77.533) Wright Valley ENVELOPE(161.833,161.833,-77.517,-77.517) |
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Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Genki I. Matsumoto Tetsuya Torii Tamio Kawano Tsurahide Cho Yoshiharu Kobata Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
topic_facet |
geo envir |
description |
During the 1983-84 austral summer, Japanese geochemical studies in the Dry Valleys and Ross Island of the McMurdo Sound region in Antarctica were carried out to observe the annual variation of the vertical distribution of physicochemical properties of waters for Lakes Bonney and Vanda, to clarify the changes of water quality of Lake Vanda for day and night, to characterize the physicochemical natures of lakes and ponds in the Labyrinth, South Fork and near Lake Vanda of the Wright Valley and around McMurdo Station of Ross Island, and to determine total carbonate materials (H_2CO_3+HCO^-_3+CO^_3=ΣCO_2) in lake and pond waters. The vertical distribution of physicochemical properties of Lakes Bonney and Vanda was similar to those of previous studies, indicating that the stratification of lake waters is still stable. Any remarkable changes in the vertical distribution of the water quality of Lake Vanda for day and night were not observed. The lakes and ponds in the Labyrinth (18 ponds), South Fork (3), near Lake Vanda (2), and sorroundings of McMurdo Station (2) studied were generally small and thus chlorinity varied considerably during these 10 years. The ponds with high pH values (>10) found in the Labyrinth and South Fork were considered to be mainly attributable to the photosynthetic activity of epibenthic organisms, which are widely distributed there. The ponds with extremely high dissolved oxygen (20-35ml/l) were also found in the Labyrinth as in the case of the surface waters of Lakes Bonney and Joyce in the Dry Valleys. The contents of the total carbonate materials for a depth of 15m to the bottom in the west lobe of Lake Bonney (55-69mM) were much higher than those of the lakes and ponds (>0.05-7.5mM) in the McMurdo Sound region, interesting in relation to their sources. |
format |
Article in Journal/Newspaper |
author |
Genki I. Matsumoto Tetsuya Torii Tamio Kawano Tsurahide Cho Yoshiharu Kobata |
author_facet |
Genki I. Matsumoto Tetsuya Torii Tamio Kawano Tsurahide Cho Yoshiharu Kobata |
author_sort |
Genki I. Matsumoto |
title |
Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
title_short |
Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
title_full |
Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
title_fullStr |
Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
title_full_unstemmed |
Japanese geochemical studies on the McMurdo Sound region in Antarctica during the 1983-84 austral summer |
title_sort |
japanese geochemical studies on the mcmurdo sound region in antarctica during the 1983-84 austral summer |
publisher |
National Institute of Polar Research |
publishDate |
1985 |
url |
https://doi.org/10.15094/00008474 https://doaj.org/article/456bd33f808b4beab6de9f0dc2fdc89e |
long_lat |
ENVELOPE(162.417,162.417,-77.717,-77.717) ENVELOPE(160.833,160.833,-77.550,-77.550) ENVELOPE(-25.588,-25.588,-80.361,-80.361) ENVELOPE(161.600,161.600,-77.517,-77.517) ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(161.250,161.250,-77.567,-77.567) ENVELOPE(161.550,161.550,-77.533,-77.533) ENVELOPE(161.833,161.833,-77.517,-77.517) |
geographic |
Austral Bonney Labyrinth Lake Bonney Lake Vanda McMurdo Sound McMurdo Station Ross Island South Fork Vanda Wright Valley |
geographic_facet |
Austral Bonney Labyrinth Lake Bonney Lake Vanda McMurdo Sound McMurdo Station Ross Island South Fork Vanda Wright Valley |
genre |
Antarc* Antarctica McMurdo Sound Ross Island |
genre_facet |
Antarc* Antarctica McMurdo Sound Ross Island |
op_source |
Antarctic Record, Iss 86, Pp 108-118 (1985) |
op_relation |
doi:10.15094/00008474 0085-7289 2432-079X https://doaj.org/article/456bd33f808b4beab6de9f0dc2fdc89e |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00008474 |
_version_ |
1766246876486565888 |