WEKO3
アイテム
Auroral-Zone Geophysical Events and their Relationship to theMagnetosphere
https://nipr.repo.nii.ac.jp/records/78
https://nipr.repo.nii.ac.jp/records/78c04c0267-7489-4128-b2ee-30e6a7607efd
名前 / ファイル | ライセンス | アクション |
---|---|---|
![]() |
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
---|---|---|---|---|---|---|---|---|
公開日 | 1967-02-01 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Auroral-Zone Geophysical Events and their Relationship to theMagnetosphere | |||||||
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 | |||||||
ページ属性 | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | P(論文) | |||||||
著者名(英) |
Morozumi, Henry M.
× Morozumi, Henry M.
|
|||||||
著者所属(英) | ||||||||
en | ||||||||
Geophysical Institute, University of Tokyo | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | Studies were made of inter-relations among VLF-ELF-ULF radio noises, ionospheric absorption, geomagnetic variations and aurora at the South Pole, Byrd and Eights Stations, Antarctica. Semi-diurnal peaks in the above geophysical parameters were found : these peaks occurred within a few hours before magnetic noon and others a few hours before magnetic midnight. A geophysical event which takes place in the day sector is called a D (day) event and night sector an N (night) event. The N event is similar to AKASOFU's substorm. One N event consists of three phases called N-1,N-2 and N-3. Early in the evening the N-1 is the major part of the N event. In mid-evening, three phases co-exist. The N-3 is the dominant feature of the late evening N event. Observations made by the Injun III satellite showed that VLF hiss (main feature of the N-1) was observed at the boundary and beyond the region of trapped electrons in the dark sector. VLF chorus (main feature of N-3) was observed in the closed lines of force. From the above observations, we suggest that the physical characteristics of auroral zone are asymmetric with respect to the day-night major axis. VLF hiss and band-type aurora are the main features of the evening side (N-1). VLF chorus, ionospheric absorption, ULF and patchy and surface-like aurora are characteristics of a post-midnight region (N-3). The break-up (N-2) is the transition between N-1 and N-3. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA00246775 | |||||||
書誌情報 |
Japanese Antarctic Research Expedition scientific reports. Special issue 巻 1, p. 53-64, 発行日 1967-02 |