Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet-
The coefficients of the correlation between the reduced gravity anomaly and the bedrock height were calculated using gravity data in the Lutzow-Holm Bay region and the Mizuho Plateau, East Antarctica. A good positive relationship between the bedrock height and the reduced gravity anomaly was found o...
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National Institute of Polar Research
1984
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ftdoajarticles:oai:doaj.org/article:f33b78d0845d44f099532bc2b58b1b30 2023-05-15T13:34:51+02:00 Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- Toshiyasu Nagao 1984-08-01T00:00:00Z https://doi.org/10.15094/00008407 https://doaj.org/article/f33b78d0845d44f099532bc2b58b1b30 EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008407 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008407 0085-7289 2432-079X https://doaj.org/article/f33b78d0845d44f099532bc2b58b1b30 Antarctic Record, Iss 82, Pp 20-29 (1984) Geography (General) G1-922 article 1984 ftdoajarticles https://doi.org/10.15094/00008407 2022-12-31T14:28:21Z The coefficients of the correlation between the reduced gravity anomaly and the bedrock height were calculated using gravity data in the Lutzow-Holm Bay region and the Mizuho Plateau, East Antarctica. A good positive relationship between the bedrock height and the reduced gravity anomaly was found on the sea ice and in the ice-free area of Lutzow-Holm Bay and in the ice-free area of the Yamato Mountains. On the contrary, the correlation between the reduced gravity anomaly and the bedrock height at gravity stations on the ice sheet whose ice thickness was measured by an ice radar survey showed a weak negative relationship. This fact may suggest that the determination of ice thickness by an ice radar on the ice sheet was inaccurate. The negative relationship between the reduced gravity anomaly and the bedrock height in the Mizuho Plateau means that the isostasy of this area is incomplete. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ice Sheet Sea ice Directory of Open Access Journals: DOAJ Articles East Antarctica Mizuho ENVELOPE(44.317,44.317,-70.683,-70.683) Mizuho Plateau ENVELOPE(40.000,40.000,-73.000,-73.000) Syowa Station Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) |
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 Toshiyasu Nagao Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
topic_facet |
Geography (General) G1-922 |
description |
The coefficients of the correlation between the reduced gravity anomaly and the bedrock height were calculated using gravity data in the Lutzow-Holm Bay region and the Mizuho Plateau, East Antarctica. A good positive relationship between the bedrock height and the reduced gravity anomaly was found on the sea ice and in the ice-free area of Lutzow-Holm Bay and in the ice-free area of the Yamato Mountains. On the contrary, the correlation between the reduced gravity anomaly and the bedrock height at gravity stations on the ice sheet whose ice thickness was measured by an ice radar survey showed a weak negative relationship. This fact may suggest that the determination of ice thickness by an ice radar on the ice sheet was inaccurate. The negative relationship between the reduced gravity anomaly and the bedrock height in the Mizuho Plateau means that the isostasy of this area is incomplete. |
format |
Article in Journal/Newspaper |
author |
Toshiyasu Nagao |
author_facet |
Toshiyasu Nagao |
author_sort |
Toshiyasu Nagao |
title |
Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
title_short |
Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
title_full |
Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
title_fullStr |
Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
title_full_unstemmed |
Topographic features around Syowa Station as viewed from the gravity measurements -Some implications on the bedrock topography under the ice sheet- |
title_sort |
topographic features around syowa station as viewed from the gravity measurements -some implications on the bedrock topography under the ice sheet- |
publisher |
National Institute of Polar Research |
publishDate |
1984 |
url |
https://doi.org/10.15094/00008407 https://doaj.org/article/f33b78d0845d44f099532bc2b58b1b30 |
long_lat |
ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(40.000,40.000,-73.000,-73.000) ENVELOPE(35.583,35.583,-71.417,-71.417) |
geographic |
East Antarctica Mizuho Mizuho Plateau Syowa Station Yamato |
geographic_facet |
East Antarctica Mizuho Mizuho Plateau Syowa Station Yamato |
genre |
Antarc* Antarctica East Antarctica Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet Sea ice |
op_source |
Antarctic Record, Iss 82, Pp 20-29 (1984) |
op_relation |
https://doi.org/10.15094/00008407 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008407 0085-7289 2432-079X https://doaj.org/article/f33b78d0845d44f099532bc2b58b1b30 |
op_doi |
https://doi.org/10.15094/00008407 |
_version_ |
1766058516233060352 |