Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1998-01-01 |
タイトル |
|
|
タイトル |
Auroral tomography analysis of a folded arc observed at the ALIS-Japan multi-station campaign on March 26, 1995 |
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 |
10.15094/00004232 |
|
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) |
Aso, Takehiko
Ejiri, Masaki
Urashima, Akira
Miyaoka, Hiroshi
Steen, Ake
Brändström, Urban
Gustavsson, Björn
|
著者所属(英) |
|
|
|
en |
|
|
National Institute of Polar Research/National Institute of Polar Research/Department of Electrical Engineering, Kyoto University/National Institute of Polar Research/Swedish Institute of Space Physics/Swedish Institute of Space Physics/Swedish Institute of Space Physics |
抄録(英) |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Auroral tomography is a state-of-the-art method to retrieve three dimensional (3D) structure of luminous aurora from images taken simultaneously at multiple observation points. Imaging is basically monochromatic and altitude structures as well as horizontal vortex structures at particular wavelength are reconstructed. These are crucial for quantitative understanding of auroral formation and dynamical processes. In March 1995,the first multi-point international campaign between Sweden and Japan was carried out using three unmanned Swedish ALIS stations (Kiruna, Merasjarvi, Tjautjas) and two Japanese sites (Abisko, Nikkaluokta), separated by about 50km in Kiruna region. ALIS stands for the Auroral Large Imaging System which aims at capturing large-scale composite auroral images as well as optical tomographic imaging by a computer-controlled networking. In this paper, a description is given on the analysis of auroral tomography on the reconstruction of folded auroral arc observed at 2340 : 30 UT on March 26,1995. The images are taken for 1-5s integration at a green line of 557.7nm. Cameras were pointed to one of the preset common field of view, viz., a core region which is just overhead of Kiruna. Optical tomography relying on inversion analysis by the algebraic reconstruction technique has been carried out. The result indicates a fold structure of auroral arc with inferred altitude profile of photo-emission peaking at around 120km. |
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 11,
p. 1-10,
発行日 1998-01
|
出版者 |
|
|
出版者 |
National Institute of Polar Research |