| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-01-19 |
| タイトル |
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タイトル |
Surface characteristics at Dome A, Antarctica: first measurements and a guide to future ice-coring sites |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Cunde, Xiao
Yuansheng, Li
Allison, Ian
Shugui, Hou
Dreyfus, Gabrielle
Barnola, Jean-Marc
Jiawen, Ren
Lingen, Bian
Shenkai, Zhang
Kameda, Takao
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| 著者別名 |
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識別子Scheme |
WEKO |
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識別子 |
44128 |
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識別子Scheme |
KAKEN |
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識別子URI |
https://nrid.nii.ac.jp/ja/nrid/1000000233974 |
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識別子 |
233974 |
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姓名 |
亀田, 貴雄 |
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言語 |
ja |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
An assessment of the glaciological and meteorological characteristics of Dome A, the summit of the East Antarctic ice sheet, is made based on field investigations during the austral summer of 2004/05. Knowledge of these characteristics is critical for future international studies such as deep ice-core drilling. The assessment shows that: (1) Dome A is characterized by a very low 10 m depth firn temperature, ?58.3°C (nearly 3°C lower than at EPICA Dome C and 1°C lower than at Vostok). (2) Automatic weather station (AWS) measurements of snow surface height and reference layers in a snow pit indicate the present-day snow accumulation rate at Dome A is within the range 1?3 cm w.e.a?1. Densification models suggest a range of 1?2 cm w.e.a?1. This is lower than at other sites along the ice divide of East Antarctica (IDEA). Annual layers at Dome A are thus potentially thinner than at other sites, so that a longer record is preserved in a given ice thickness. (3) The average wind speed observed at Dome A (<4 m s?1) is lower than at other sites along IDEA. Together, these parameters, combined with radio-echo sounding data and information on the subglacial drainage distribution beneath Dome A, suggest Dome A as a candidate site for obtaining the oldest ice core. |
| 書誌情報 |
Annals of Glaciology
巻 48,
p. 82-87,
発行日 2008
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3189/172756408784700653 |
| 権利 |
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権利情報 |
c 2008 International Glaciological Society |
| 出版者 |
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出版者 |
International Glaciological Society |
| 著者版フラグ |
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言語 |
en |
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値 |
publisher |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
2008_Surface characteristics at Dome A, Antarctica first measurements and a guide to future ice-coring sites.pdf (747.7 kB)
