Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica
To clarify the basal hydrology of Soya drainage, East Antarctica, we studied the formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast by using stable isotope ratios (δ^<18>O andδD). The stable isotopes of this bubble-free ice are almost the same values w...
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National Institute of Polar Research
2002
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ftnipr:oai:nipr.repo.nii.ac.jp:00002946 2023-05-15T13:49:00+02:00 Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica Yoshinori Iizuka Hiroshi Satake Okitsugu Watanabe 2002-11 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2946 http://id.nii.ac.jp/1291/00002946/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2946&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research Department of Environmental Chemistry and Biology, Toyama University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2946 http://id.nii.ac.jp/1291/00002946/ AA1129795X Polar meteorology and glaciology, 16, 53-60(2002-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2946&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 2002 ftnipr 2022-11-26T19:42:17Z To clarify the basal hydrology of Soya drainage, East Antarctica, we studied the formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast by using stable isotope ratios (δ^<18>O andδD). The stable isotopes of this bubble-free ice are almost the same values withoutδ-value fluctuations as those from Rayleigh-type fractionation; isotopically, the bubble-free ice was heavier by 3.8 and 27‰ for δ^<18>O and δD, respectively, than the neighboring bubbly ice. These results suggest that the pocket was formed by meltwater refreezing during the discharge of water to the lower reach under the Soya drainage. Meltwater under the Soya drainage is considered to have flowed through R-channels. Report Antarc* Antarctica East Antarctica Polar meteorology and glaciology National Institute of Polar Research Repository, Japan East Antarctica Hamna ENVELOPE(39.700,39.700,-69.267,-69.267) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
To clarify the basal hydrology of Soya drainage, East Antarctica, we studied the formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast by using stable isotope ratios (δ^<18>O andδD). The stable isotopes of this bubble-free ice are almost the same values withoutδ-value fluctuations as those from Rayleigh-type fractionation; isotopically, the bubble-free ice was heavier by 3.8 and 27‰ for δ^<18>O and δD, respectively, than the neighboring bubbly ice. These results suggest that the pocket was formed by meltwater refreezing during the discharge of water to the lower reach under the Soya drainage. Meltwater under the Soya drainage is considered to have flowed through R-channels. |
format |
Report |
author |
Yoshinori Iizuka Hiroshi Satake Okitsugu Watanabe |
spellingShingle |
Yoshinori Iizuka Hiroshi Satake Okitsugu Watanabe Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
author_facet |
Yoshinori Iizuka Hiroshi Satake Okitsugu Watanabe |
author_sort |
Yoshinori Iizuka |
title |
Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
title_short |
Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
title_full |
Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
title_fullStr |
Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
title_full_unstemmed |
Formation processes of a pocket consisting of bubble-free ice in Hamna ice cliff, Soya Coast, East Antarctica |
title_sort |
formation processes of a pocket consisting of bubble-free ice in hamna ice cliff, soya coast, east antarctica |
publisher |
National Institute of Polar Research |
publishDate |
2002 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2946 http://id.nii.ac.jp/1291/00002946/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2946&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(39.700,39.700,-69.267,-69.267) |
geographic |
East Antarctica Hamna |
geographic_facet |
East Antarctica Hamna |
genre |
Antarc* Antarctica East Antarctica Polar meteorology and glaciology |
genre_facet |
Antarc* Antarctica East Antarctica Polar meteorology and glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2946 http://id.nii.ac.jp/1291/00002946/ AA1129795X Polar meteorology and glaciology, 16, 53-60(2002-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2946&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250329006931968 |