Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1994-11-01 |
タイトル |
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タイトル |
BACKGROUND LEVELS OF HCOO^-, CH_3SO_3^-, NO_3^-, SO_4^<2-> AND NH_4^+ IN ICE CORES FROM INLAND GREENLAND |
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 |
10.15094/00003855 |
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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) |
記事種別(英) |
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en |
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ABSTRACT |
論文名よみ |
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その他のタイトル |
BACKGROUND LEVELS OF HCOO^-, CH_3SO_3^-, NO_3^-, SO_4^<2-> AND NH_4^+ IN ICE CORES FROM INLAND GREENLAND |
著者名よみ |
オサダ, カズオ /
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著者名(英) |
OSADA, Kazuo
LANGWAY, Chester C.
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著者所属(英) |
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en |
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Solar-Terrestrial Environment Laboratory, Nagoya University |
著者所属(英) |
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en |
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Department of Geology, State University of New York at Buffalo |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Concentration levels of the organic acids HCOO^- and CH_3SO_3^-, inorganic acids NO_3^- and excess SO_4^<2-> and ammonium were measured in pre-1900 AD ice layers from seven geographically dispersed inland sites in Greenland. Average multiple-year background concentration levels are calculated for each ion at each site from laboratory measurements of continuous core samples representing from 4 to 10 years of snow accumulation (32 to 80 individual measurements) from various time intervals. The HCOO^- concentration level increases from 6 ng/g in the northern most cold site to 36 ng/g in the southern most warm site; CH_3SO_3^- increases from 0.9 ng/g to 2.8 ng/g; NO_3^- decreases from 83 ng/g to 37 ng/g; excess SO_4^<2-> decreases from 43 ng/g to 19 ng/g, all with variability. The distribution of the NH_4^+ ion shows a nearly constant level at about 6 ng/g for all sites except Dye-2 where it reaches 10 ng/g. The deposition patterns for HCOO^- and NH_4^+ on the ice sheet suggest that major contributions arrive from sources originating from the southwest of Greenland. |
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 8,
p. 198,
発行日 1994-11
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出版者 |
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出版者 |
National Institute of Polar Research |