Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet
Density data and the stratigraphy profile from a 50m firn core and a snow-pit at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet, show that the densification process there is of the cold densification process type. The depth of the first critical density is 10.4m; the depth of the second...
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ftnipr:oai:nipr.repo.nii.ac.jp:00002929 2023-05-15T13:49:00+02:00 Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet / / Jiahong Wen Jiancheng Kang Dali Wang Bo Sun Yuansheng Li Zhongqin Li Jun Li 2001-11 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2929 http://id.nii.ac.jp/1291/00002929/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2929&item_no=1&attribute_id=18&file_no=1 en eng Scientific Paper Polar Research Institute of China:Laboratory of Ice Core and Cold Regions Environment, CAREERI, CAS Polar Research Institute of China Laboratory of Ice Core and Cold Regions Environment, CAREERI, CAS Antarctic CRC and Australian Antarctic Division National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2929 http://id.nii.ac.jp/1291/00002929/ AA1129795X Polar meteorology and glaciology, 15, 43-54(2001-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2929&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 2001 ftnipr 2022-11-26T19:42:17Z Density data and the stratigraphy profile from a 50m firn core and a snow-pit at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet, show that the densification process there is of the cold densification process type. The depth of the first critical density is 10.4m; the depth of the second critical density is assumed to be 60.4m. There are only a few embryo depth hoar layers with thickness of several centimeters, and most of them overlie or underlie ice crusts. The relative light transmission variation of the firn core is not clear above 16.0m; below that, the cyclic light transmission becomes obvious with increase of depth. There are relatively abundant ice crusts with an average of 7 crusts per meter in the firn core. It is concluded from the firn core dating by stratigraphy, δ^<18>O and chemical profiles, that the accumulation trend increased slightly over the last 250 years. The mean accumulation rate of the whole firn core is 130.7mm of water equivalent per year. Report Antarc* Antarctic Ice Sheet Polar meteorology and glaciology Princess Elizabeth Land National Institute of Polar Research Repository, Japan Antarctic East Antarctic Ice Sheet Princess Elizabeth Land ENVELOPE(80.367,80.367,-68.500,-68.500) |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
Density data and the stratigraphy profile from a 50m firn core and a snow-pit at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet, show that the densification process there is of the cold densification process type. The depth of the first critical density is 10.4m; the depth of the second critical density is assumed to be 60.4m. There are only a few embryo depth hoar layers with thickness of several centimeters, and most of them overlie or underlie ice crusts. The relative light transmission variation of the firn core is not clear above 16.0m; below that, the cyclic light transmission becomes obvious with increase of depth. There are relatively abundant ice crusts with an average of 7 crusts per meter in the firn core. It is concluded from the firn core dating by stratigraphy, δ^<18>O and chemical profiles, that the accumulation trend increased slightly over the last 250 years. The mean accumulation rate of the whole firn core is 130.7mm of water equivalent per year. |
format |
Report |
author |
/ / Jiahong Wen Jiancheng Kang Dali Wang Bo Sun Yuansheng Li Zhongqin Li Jun Li |
spellingShingle |
/ / Jiahong Wen Jiancheng Kang Dali Wang Bo Sun Yuansheng Li Zhongqin Li Jun Li Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
author_facet |
/ / Jiahong Wen Jiancheng Kang Dali Wang Bo Sun Yuansheng Li Zhongqin Li Jun Li |
author_sort |
/ / |
title |
Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
title_short |
Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
title_full |
Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
title_fullStr |
Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
title_full_unstemmed |
Density, stratigraphy and accumulation at DT001 in Princess Elizabeth Land, East Antarctic Ice Sheet |
title_sort |
density, stratigraphy and accumulation at dt001 in princess elizabeth land, east antarctic ice sheet |
publisher |
Scientific Paper |
publishDate |
2001 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2929 http://id.nii.ac.jp/1291/00002929/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2929&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(80.367,80.367,-68.500,-68.500) |
geographic |
Antarctic East Antarctic Ice Sheet Princess Elizabeth Land |
geographic_facet |
Antarctic East Antarctic Ice Sheet Princess Elizabeth Land |
genre |
Antarc* Antarctic Ice Sheet Polar meteorology and glaciology Princess Elizabeth Land |
genre_facet |
Antarc* Antarctic Ice Sheet Polar meteorology and glaciology Princess Elizabeth Land |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2929 http://id.nii.ac.jp/1291/00002929/ AA1129795X Polar meteorology and glaciology, 15, 43-54(2001-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2929&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250327071260672 |