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  1. F300 宇宙地球環境研究所
  2. F300a 雑誌掲載論文
  3. 学術雑誌

Characteristics of GNSS Total Electron Content Enhancements Over the Midlatitudes During a Geomagnetic Storm on 7 and 8 November 2004

http://hdl.handle.net/2237/00031577
http://hdl.handle.net/2237/00031577
b9ecd009-fb9b-4311-ad14-f39fb5976d41
名前 / ファイル ライセンス アクション
Sori_et_al-2019-Journal_of_Geophysical_Research__Space_Physics.pdf Sori_et_al-2019-Journal_of_Geophysical_Research__Space_Physics (61.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-03-11
タイトル
タイトル Characteristics of GNSS Total Electron Content Enhancements Over the Midlatitudes During a Geomagnetic Storm on 7 and 8 November 2004
言語 en
著者 Sori, T.

× Sori, T.

WEKO 96494

en Sori, T.

Search repository
Shinbori, A.

× Shinbori, A.

WEKO 96495

en Shinbori, A.

Search repository
Otsuka, Y.

× Otsuka, Y.

WEKO 96496

en Otsuka, Y.

Search repository
Tsugawa, T.

× Tsugawa, T.

WEKO 96497

en Tsugawa, T.

Search repository
Nishioka, M.

× Nishioka, M.

WEKO 96498

en Nishioka, M.

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 © 2019 American Geophysical Union
キーワード
主題Scheme Other
主題 polar mesosphere winter echoes
キーワード
主題Scheme Other
主題 EMIC waves
キーワード
主題Scheme Other
主題 chorus waves
キーワード
主題Scheme Other
主題 Arase
キーワード
主題Scheme Other
主題 conjugate observation
キーワード
主題Scheme Other
主題 MST radar to Geomagnetic storms
キーワード
主題Scheme Other
主題 Total electron content
キーワード
主題Scheme Other
主題 Storm enhanced density
キーワード
主題Scheme Other
主題 Ionosphere
抄録
内容記述 The characteristics of global electron density variations in the ionosphere during a geomagnetic storm on 7 and 8 November 2004 were investigated using total electron content (TEC) obtained from the global navigation satellite system (GNSS). The regions of enhanced TEC over North America, Europe, and Japan first appeared in the middle‐latitude regions. The TEC enhancements over North America showed a rapid longitudinal expansion and reached a wide longitudinal extent during the initial and main phases of the geomagnetic storm. TEC enhancements were simultaneously observed in both North America and Japan at 05:00 UT on 8 November. Observation data from the Defense Meteorological Satellite Program showed a slight enhancement of electron density at 850 km below the equatorward boundary of the middle‐latitude trough (45–48°N in geomagnetic latitude) over the Pacific Ocean. This electron density variation may correspond to the TEC enhancements observed in both Japan and North America. These results imply that an enhanced TEC region existed between North America and Japan. The TEC enhancement in Japan appeared with a magnetic conjugacy in the Southern Hemisphere, indicating one of the characteristics of storm‐enhanced density (SED). Moreover, TEC enhancements simultaneously appeared from Japan to central Asia at 11:00 UT on 8 November, corresponding to the early recovery phase of the geomagnetic storm. From the above results, it is suggested that SED phenomena can be simultaneously generated over a wide longitudinal width (~100°). The longitudinal extent of this SED event is 2.5–5.0 times longer than those reported by previous studies.
言語 en
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2020-06-01
言語 ja
内容記述タイプ Other
出版者
言語 en
出版者 Wiley
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1029/2019JA026713
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 2169-9380
書誌情報 en : Journal of Geophysical Research: Space Physics

巻 124, 号 12, p. 10376-10394, 発行日 2019-12
著者版フラグ
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