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Characteristics of polar cusp VLF emissions observed by ISIS satellites of low altitude polar orbit
https://doi.org/10.15094/00004205
https://doi.org/10.15094/000042052f3775ed-6913-4d56-a33f-1a83c794fc1c
名前 / ファイル | ライセンス | アクション |
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KJ00000035908 (1.9 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1997-01-01 | |||||
タイトル | ||||||
タイトル | Characteristics of polar cusp VLF emissions observed by ISIS satellites of low altitude polar orbit | |||||
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 | 10.15094/00004205 | |||||
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) |
Ondoh, Tadanori
× Ondoh, Tadanori |
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著者所属(英) | ||||||
en | ||||||
Space Earth Environment Laboratory | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Characteristics of polar cusp hiss and other VLF emissions observed in the cusp region are studied by using f-t spectra and narrow-band intensity data at six frequencies which were processed from VLF electric field data received from ISIS-1 and ISIS-2 at Syowa Station, Antarctica. The polar cusp hiss is very irregular in frequency, intensity and time (or space), and shows fine intensity variations in the narrow-band intensity data at 5 and 8kHz bands as compared with coarse intensity variations of the polar hiss (or auroral hiss) appearing on either side of the polar cusp region. The polar cusp hiss occurs over several hours centered around the geomagnetic noon in geomagnetic local time for a few minutes in UT on ISIS west to east passes. The regions of polar hiss with curtain-like f-t spectrum lie on both sides of the polar cusp hiss region. The irregular and structured spectra of polar cusp hiss and saucer emissions may reflect irregular and structured electron precipitations in the cusp region. The polar cusp VLF emissions, such as the polar cusp hiss and VLF saucers occur at invariant latitudes from 72°to 86°, and at geomagnetic local times from 09 to 15 hours. The polar cusp VLF hiss is discussed in terms of the whistler-mode cherenkov radiations generated from downgoing electrons in the polar magnetosphere. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10756224 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Upper Atmosphere Physics 巻 10, p. 50-63, 発行日 1997-01 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |