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The concentration of ^\u003c222\u003eRn was higher in the first half than the latter half of the monitoring period. Daily mean ^\u003c222\u003eRn concentration averaged 270mBq/m^3 for the first half of the period and 150mBq/m^3 for the latter half of the period. The maximum daily mean ^\u003c222\u003eRn concentration was 630mBq/m^3,and the minimum concentration was 70mBq/m^3. The daily mean values were higher than those measurement in previous studies in Antarctica. Remarkable ^\u003c222\u003eRn concentration increases (radon storms), which accompanied cyclones, were observed twice during the austral spring at Syowa Station. The first radon storm occurred on 18-21 September and the second on 16-20 October 1996. The daily mean ^\u003c222\u003eRn concentrations in the first and second radon storms attained 530mBq/m^3 and 630mBq/m^3 respectively. On the other hand, the hourly mean ^\u003c222\u003eRn concentration attained 1200mBq/m^3 in the second event. 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PRELIMINARY RESULTS FROM RADON OBSERVATION AT SYOWA STATION, ANTARCTICA, DURING 1996
https://doi.org/10.15094/00002873
https://doi.org/10.15094/00002873ca2c7e7d-67fc-4397-b51a-6a39148a0725
名前 / ファイル | ライセンス | アクション |
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KJ00002364383 (1.7 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1998-11-01 | |||||
タイトル | ||||||
タイトル | PRELIMINARY RESULTS FROM RADON OBSERVATION AT SYOWA STATION, ANTARCTICA, DURING 1996 | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00002873 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | PRELIMINARY RESULTS FROM RADON OBSERVATION AT SYOWA STATION, ANTARCTICA, DURING 1996 | |||||
著者名よみ |
ウイ, ヒロタカ
× ウイ, ヒロタカ× タサカ, シゲキ× ハヤシ, マサヒコ× オサダ, カズオ× イワサカ, ヤスノブ |
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著者名(英) |
UI, Hirotaka
× UI, Hirotaka× TASAKA, Shigeki× HAYASHI, Masahiko× OSADA, Kazuo× IWASAKA, Yasunobu |
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著者所属(英) | ||||||
en | ||||||
Laboratory of Global Environment, Faculty of Education, Toyama University | ||||||
著者所属(英) | ||||||
en | ||||||
Faculty of Education, Gifu University | ||||||
著者所属(英) | ||||||
en | ||||||
Solar Terrestrial Environment Laboratory, Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Solar Terrestrial Environment Laboratory, Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Solar Terrestrial Environment Laboratory, Nagoya University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The concentration of ^<222>Rn in surface air was measured for the first time at Syowa Station, Antarctica in the period September 1996-January 1997 by an electrostatic collection method. The concentration of ^<222>Rn was higher in the first half than the latter half of the monitoring period. Daily mean ^<222>Rn concentration averaged 270mBq/m^3 for the first half of the period and 150mBq/m^3 for the latter half of the period. The maximum daily mean ^<222>Rn concentration was 630mBq/m^3,and the minimum concentration was 70mBq/m^3. The daily mean values were higher than those measurement in previous studies in Antarctica. Remarkable ^<222>Rn concentration increases (radon storms), which accompanied cyclones, were observed twice during the austral spring at Syowa Station. The first radon storm occurred on 18-21 September and the second on 16-20 October 1996. The daily mean ^<222>Rn concentrations in the first and second radon storms attained 530mBq/m^3 and 630mBq/m^3 respectively. On the other hand, the hourly mean ^<222>Rn concentration attained 1200mBq/m^3 in the second event. This implies that the ^<222>Rn concentrations vary on a short time scale. The main feature of the ^<222>Rn concentration record corresponds to intense mixing of air masses from mid-latitude continents to Antarctica. This implies that the variations of ^<222>Rn may be related to the wind direction. The concentrations of ^<222>Rn seem to increase with southerly wind and decrease with northerly or northeasterly wind. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1129795X | |||||
書誌情報 |
Polar meteorology and glaciology 巻 12, p. 112-123, 発行日 1998-11 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |