| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2007-06-21 |
| タイトル |
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タイトル |
210-year ice core records of dust storms, volcanic eruptions and acidification at Site-J, Greenland (scientific note) |
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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 |
Fujii, Yoshiyuki
Kamiyama, Kokichi
Shoji, Hitoshi
Narita, Hideki
Nishio, Fumihiko
Kameda, Takao
Watanabe, Okitsugu
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| 著者別名 |
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識別子Scheme |
WEKO |
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識別子 |
36954 |
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姓名 |
庄子, 仁 |
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言語 |
ja |
| 著者別名 |
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識別子Scheme |
WEKO |
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識別子 |
36955 |
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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 |
210-year records of dust concentration, electrical conductivity, acidity (pH), non-sea salt sulfate (nss sulfate) and nitrate concentrations were obtained for an ice core from Site-J, Greenland. The ice core was well dated by counting annual cycles of the δ^<18>O profile and by tuning with time markers established for tritium peaks and the Laki 1783 eruption signal. Dust records in both ice cores from Site-J and Crete suggest that dust storms occurred in 1818,1900,1919,1936 and 1943 over Greenland. Electrical conductivity shows remarkable peaks probably due to volcanic eruptions with VEI larger than 4. The anthropogenic effect on precipitation chemistry started in ca. 1860,40 years earlier than the time previously reported. Nss sulfate increased remarkably, much more than nitrate, because of the rapid increase in solid fossil fuel combustion, but by the early 1970's, the nitrate concentration exceeded the nss sulfate concentration due to the intense increase in liquid fossil fuel combustion since the 1950's. The decrease in sulfate and nitrate concentrations started in the early 1970's. This is attributed to the spread of suppression facilities for anthropogenic pollutants emitted by the combustion of solid and liquid fossil fuels. |
| 書誌情報 |
Memoirs of National Institute of Polar Research. Special Issue
巻 54,
p. 209-220
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| 権利 |
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権利情報 |
NATIONAL INSTITUTE OF POLAR RESEARCH, Fujii Yoshiyuki, Kamiyama Kokichi, Shoji Hitoshi, Narita Hideki, Nishio Fumihiko, Kameda Takao, Watanabe Okitsugu, Memoirs of National Institute of Polar Research. Special Issue, 54, 2001, 209-220 |
| フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |
| 出版者 |
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出版者 |
国立極地研究所 |
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言語 |
ja |
| 著者版フラグ |
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言語 |
en |
|
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 |
5120.pdf (4.7 MB)
