Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1995-09-01 |
タイトル |
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タイトル |
PRELIMINARY MEASUREMENT OF HIGH-FREQUENCY ELECTRICAL CONDUCTIVITY OF ANTARCTIC ICE WITH AC-ECM TECHNIQUE |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00003875 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
論文名よみ |
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その他のタイトル |
PRELIMINARY MEASUREMENT OF HIGH-FREQUENCY ELECTRICAL CONDUCTIVITY OF ANTARCTIC ICE WITH AC-ECM TECHNIQUE |
著者名よみ |
スギヤマ, ケン
フジタ, シュウジ
スエオカ, シゲル
マエ, シンジ
ホンドウ, タケオ
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著者名(英) |
SUGIYAMA, Ken
FUJITA, Shuji
SUEOKA, Shigeru
MAE, Shinji
HONDOH, Takeo
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著者所属(英) |
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en |
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Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
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en |
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Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
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en |
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Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
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en |
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Department of Applied Physics, Faculty of Engineering, Hokkaido University |
著者所属(英) |
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en |
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Institute of Low Temperature Science, Hokkaido University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
We measured the high-frequency electrical conductivity of solid ice samples collected in the Antarctic ice sheet with a new technique called "AC-ECM (AC Electrical Conductivity Measurements)". The purpose was to establish a new convenient technique to detect variation of impurity content in ice cores with high spatial resolution and with high reproducibility for repetitive measurements. For this purpose, the conductance of the ice sample was measured with 2-terminal electrodes and with parallel-plate electrodes at 16 frequencies between 40Hz and 1MHz. Then both results of the conductance measured by these two different pairs of electrodes were compared to discuss the physical meaning of the signals measured with the new technique. The preliminary measurements were successful. We could measure conductance, which is proportional to the conductivity of ice, at frequencies above 100kHz at -20℃. The relaxation frequencies of Debye dispersion were higher when values of conductance were measured with the new technique, which suggested that surface conduction was dominant. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10756213 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
巻 9,
p. 12-22,
発行日 1995-09
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出版者 |
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出版者 |
National Institute of Polar Research |