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Temporal and Spatial Variations of Total Electron Content Enhancements During a Geomagnetic Storm on 27 and 28 September 2017
http://hdl.handle.net/2237/00033241
http://hdl.handle.net/2237/00033241a2b17c3c-bf74-4852-8cec-4cce761c5e7d
名前 / ファイル | ライセンス | アクション |
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2019JA026873 (13.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-12-24 | |||||
タイトル | ||||||
タイトル | Temporal and Spatial Variations of Total Electron Content Enhancements During a Geomagnetic Storm on 27 and 28 September 2017 | |||||
言語 | en | |||||
著者 |
Shinbori, Atsuki
× Shinbori, Atsuki× Otsuka, Yuichi× Sori, Takuya× Tsugawa, Takuya× Nishioka, Michi |
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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 | © 2020 American Geophysical Union | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | geomagnetic storm | |||||
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 | high‐latitude convection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | prompt penetration electric field | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | upward motion of the ionosphere | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | equatorial ionization anomaly | |||||
抄録 | ||||||
内容記述 | Temporal and spatial evolutions of total electron content (TEC) and electron density in the ionosphere during a geomagnetic storm that occurred on 27 and 28 September 2017 have been investigated using global TEC data obtained from many Global Navigation Satellite System stations together with the ionosonde, geomagnetic field, Jicamarca incoherent scatter and Super Dual Auroral Radar Network (SuperDARN) radar data. Our analysis results show that a clear enhancement of the ratio of the TEC difference (rTEC) first occurs from noon to afternoon at high latitudes within 1 hr after a sudden increase and expansion of the high‐latitude convection and prompt penetration of the electric field to the equator associated with the southward excursion of the interplanetary magnetic field. Approximately 1–2 hr after the onset of the hmF2 increase in the midlatitude and low‐latitude regions associated with the high‐latitude convection enhancement, the rTEC and foF2 values begin to increase and the enhanced rTEC region expands to low latitudes within 1–2 hr. This signature suggests that the ionospheric plasmas in the F2 region move at a higher altitude due to local electric field drift, where the recombination rate is smaller, and that the electron density increases due to additional production at the lower altitude in the sunlit region. Later, another rTEC enhancement related to the equatorial ionization anomaly appears in the equatorial region approximately 1 hr after the prompt penetration of the electric field to the equator and expands to higher latitudes within 3–4 hr. | |||||
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:2021-01-01 | |||||
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 | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1029/2019JA026873 | |||||
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 125, 号 7, p. e2019JA026873, 発行日 2020-07 |
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著者版フラグ | ||||||
値 | author |