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Auroral O+ 732/733 nm emission and its relation to ion upflow
https://doi.org/10.15094/00006384
https://doi.org/10.15094/00006384c73099a8-4b32-4764-b6f7-ead8c4e59068
名前 / ファイル | ライセンス | アクション |
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KJ00000729611 (874.4 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2004-08-01 | |||||
タイトル | ||||||
タイトル | Auroral O+ 732/733 nm emission and its relation to ion upflow | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | aurola, oxygen ion, upflow, ESR | |||||
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 | 10.15094/00006384 | |||||
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) | |||||
著者名(英) |
Koizumi, Naoko
× Koizumi, Naoko× Okano, Shoichi× Sakanoi, Takeshi× Taguchi, Makoto× Aso, Takehiko |
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著者所属(英) | ||||||
en | ||||||
Planetary Plasma and Atmospheric Research Center, Tohoku University/Planetary Plasma and Atmospheric Research Center, Tohoku University/Planetary Plasma and Atmospheric Research Center, Tohoku University/National Institute of Polar Research/National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Observations of auroral oxygen ion emission at 732/733 nm were made at the Aurora station in Longyearbyen (78.2.N, 16.3.E; lm=74.9.) using an all-sky spectrograph (ASG) during the winter season of 2000/2001. A statistical analysis showed that the highest occurrence of oxygen ion auroras at Longyearbyen was seen in the dayside of the 09-12MLT region; the intensities of these auroras were also larger than those on the night side. To study the mechanism of ion up゜ow in the polar ionosphere, ASG data obtained on December 7, 2000, was analyzed together with simultaneous ionospheric data obtained by EISCAT Svalbard radar (ESR). Enhancements of electron temperature and ion upward velocity were associated with an increase in the auroral OII intensity at the magnetic zenith. This result suggests that an ambipolar electric field associated with electron temperature enhancement caused by soft electron precipitation may be involved in the mechanisms that drive ionospheric ions upward. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11397422 | |||||
書誌情報 |
Advances in polar upper atmosphere research 巻 18, p. 96-104, 発行日 2004-08 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |