Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica
Eight-months' observation of underground temperature was made by specially designed quartz thermometers in a 20m borehole at Syowa Station, East Antarctica. The underground temperature at 5m depth showed a quasisinusoidal change of 5.47℃ from -4.89℃ to -10.36℃. The above change became smaller t...
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National Institute of Polar Research
1982
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ftdoajarticles:oai:doaj.org/article:1fb5cdeeb004495f8f9465393a3c1163 2023-05-15T13:46:42+02:00 Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica Kazuo Shibuya Toshiyasu Nagao Katsutada Kaminuma 1982-09-01T00:00:00Z https://doi.org/10.15094/00008323 https://doaj.org/article/1fb5cdeeb004495f8f9465393a3c1163 EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008323 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008323 0085-7289 2432-079X https://doaj.org/article/1fb5cdeeb004495f8f9465393a3c1163 Antarctic Record, Iss 76, Pp 89-100 (1982) Geography (General) G1-922 article 1982 ftdoajarticles https://doi.org/10.15094/00008323 2022-12-31T01:41:03Z Eight-months' observation of underground temperature was made by specially designed quartz thermometers in a 20m borehole at Syowa Station, East Antarctica. The underground temperature at 5m depth showed a quasisinusoidal change of 5.47℃ from -4.89℃ to -10.36℃. The above change became smaller to 1.58℃ in the range of -7.73℃∿-9.31℃ at 10m depth, and became further smaller to 0.20℃ in the range of -8.17℃∿-8.37℃ at 20m depth. In comparison with the seasonal variation of air temperature, there was a phase delay of about 90 days at 5m depth and about 290 days at 20m depth. The effect of the seasonal variation of air temperature on that of underground temperature can be estimated as less than 0.01℃ at the depth of 33.8m when exponential decay against depth is assumed to have resulted from such effect. Six-months' observation of sea-water temperature was also made at 7m depth under the ice-cover of the coast of Nisi-no-ura Cove. The observation revealed a gradual increase of temperature from -1.63℃ in June to -1.48℃ in November at an approximate rate of 0.9×10^<-3>℃/day. Superposed on the above longterm trend, there was a sequence of short-term (10-30 days) variations of 0.05-0.10℃ which was characterized by the abrupt increase and the subsequent gradual decrease of temperature. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Directory of Open Access Journals: DOAJ Articles East Antarctica Syowa Station Ura ENVELOPE(6.679,6.679,62.600,62.600) Nisi-no-ura ENVELOPE(39.567,39.567,-69.017,-69.017) |
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 Kazuo Shibuya Toshiyasu Nagao Katsutada Kaminuma Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
topic_facet |
Geography (General) G1-922 |
description |
Eight-months' observation of underground temperature was made by specially designed quartz thermometers in a 20m borehole at Syowa Station, East Antarctica. The underground temperature at 5m depth showed a quasisinusoidal change of 5.47℃ from -4.89℃ to -10.36℃. The above change became smaller to 1.58℃ in the range of -7.73℃∿-9.31℃ at 10m depth, and became further smaller to 0.20℃ in the range of -8.17℃∿-8.37℃ at 20m depth. In comparison with the seasonal variation of air temperature, there was a phase delay of about 90 days at 5m depth and about 290 days at 20m depth. The effect of the seasonal variation of air temperature on that of underground temperature can be estimated as less than 0.01℃ at the depth of 33.8m when exponential decay against depth is assumed to have resulted from such effect. Six-months' observation of sea-water temperature was also made at 7m depth under the ice-cover of the coast of Nisi-no-ura Cove. The observation revealed a gradual increase of temperature from -1.63℃ in June to -1.48℃ in November at an approximate rate of 0.9×10^<-3>℃/day. Superposed on the above longterm trend, there was a sequence of short-term (10-30 days) variations of 0.05-0.10℃ which was characterized by the abrupt increase and the subsequent gradual decrease of temperature. |
format |
Article in Journal/Newspaper |
author |
Kazuo Shibuya Toshiyasu Nagao Katsutada Kaminuma |
author_facet |
Kazuo Shibuya Toshiyasu Nagao Katsutada Kaminuma |
author_sort |
Kazuo Shibuya |
title |
Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
title_short |
Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
title_full |
Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
title_fullStr |
Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
title_full_unstemmed |
Measurements of underground and underwater temperatures by quartz thermometers at Syowa Station, East Antarctica |
title_sort |
measurements of underground and underwater temperatures by quartz thermometers at syowa station, east antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1982 |
url |
https://doi.org/10.15094/00008323 https://doaj.org/article/1fb5cdeeb004495f8f9465393a3c1163 |
long_lat |
ENVELOPE(6.679,6.679,62.600,62.600) ENVELOPE(39.567,39.567,-69.017,-69.017) |
geographic |
East Antarctica Syowa Station Ura Nisi-no-ura |
geographic_facet |
East Antarctica Syowa Station Ura Nisi-no-ura |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_source |
Antarctic Record, Iss 76, Pp 89-100 (1982) |
op_relation |
https://doi.org/10.15094/00008323 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008323 0085-7289 2432-079X https://doaj.org/article/1fb5cdeeb004495f8f9465393a3c1163 |
op_doi |
https://doi.org/10.15094/00008323 |
_version_ |
1766245105440653312 |