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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

First Simultaneous Observation of a Night Time Medium‐Scale Traveling Ionospheric Disturbance From the Ground and a Magnetospheric Satellite

http://hdl.handle.net/2237/0002002182
http://hdl.handle.net/2237/0002002182
37dd4e6c-cac9-4418-b971-e04a4e5944c1
名前 / ファイル ライセンス アクション
JGR_Space_Physics_2021_Kawai.pdf JGR_Space_Physics_2021_Kawai.pdf (5.3 MB)
Item type itemtype_ver1(1)
公開日 2022-03-11
タイトル
タイトル First Simultaneous Observation of a Night Time Medium‐Scale Traveling Ionospheric Disturbance From the Ground and a Magnetospheric Satellite
言語 en
著者 Kawai, K.

× Kawai, K.

en Kawai, K.

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Shiokawa, K.

× Shiokawa, K.

en Shiokawa, K.

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Otsuka, Y.

× Otsuka, Y.

en Otsuka, Y.

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Oyama, S.

× Oyama, S.

en Oyama, S.

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Kasaba, Y.

× Kasaba, Y.

en Kasaba, Y.

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Kasahara, Y.

× Kasahara, Y.

en Kasahara, Y.

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Tsuchiya, F.

× Tsuchiya, F.

en Tsuchiya, F.

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Kumamoto, A.

× Kumamoto, A.

en Kumamoto, A.

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Nakamura, S.

× Nakamura, S.

en Nakamura, S.

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Matsuoka, A.

× Matsuoka, A.

en Matsuoka, A.

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Imajo, S.

× Imajo, S.

en Imajo, S.

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Kazama, Y.

× Kazama, Y.

en Kazama, Y.

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Wang, S.‐Y.

× Wang, S.‐Y.

en Wang, S.‐Y.

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Tam, S. W. Y.

× Tam, S. W. Y.

en Tam, S. W. Y.

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Chang, T. F.

× Chang, T. F.

en Chang, T. F.

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Wang, B. J.

× Wang, B. J.

en Wang, B. J.

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Asamura, K.

× Asamura, K.

en Asamura, K.

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Kasahara, S.

× Kasahara, S.

en Kasahara, S.

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Yokota, S.

× Yokota, S.

en Yokota, S.

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Keika, K.

× Keika, K.

en Keika, K.

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Hori, T.

× Hori, T.

en Hori, T.

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Miyoshi, Y.

× Miyoshi, Y.

en Miyoshi, Y.

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Jun, C.

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en Jun, C.

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Shoji, M.

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Shinohara, I.

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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 © 2021 American Geophysical Union
内容記述
内容記述 Medium-scale traveling ionospheric disturbances (MSTIDs) are a phenomenon widely and frequently observed over the ionosphere from high to low latitudes. Night time MSTIDs are caused generally by the polarization electric field in the ionosphere. However, propagation of this polarization electric field to the magnetosphere has not yet been identified. Here, we report the first observation of the polarization electric field and associated density variations of a night time MSTID in the magnetosphere. The MSTID event was observed by an all-sky airglow imager at Gakona (geographical latitude: 62.39°N, geographical longitude: 214.78°E, magnetic latitude: 63.20°N), Alaska. The Arase satellite passed over the MSTID in the inner magnetosphere at 0530–0800 UT (2030–2300 LT) on November 3, 2018. This MSTID, observed in 630 nm airglow images, was propagating westward with a horizontal wavelength of ∼165 km, a north–south phase front, and a phase velocity of ∼80 m/s. The Arase satellite footprint on the ionosphere crossed the MSTID in the direction nearly perpendicular to the MSTID phase fronts. The electric field and electron density observed by the Arase satellite showed periodic variation associated with the MSTID structure with amplitudes of ∼2 mV/m and ∼150 cm−3, respectively. The electric field variations projected to the ionosphere are mainly in the east-west direction and are consistent with the direction of the polarization electric field expected from MSTID growth by E × B drift. This observation indicates that the polarization electric field associated with the MSTID in the ionosphere is projected onto the magnetosphere, causing plasma density fluctuations in the magnetosphere.
言語 en
内容記述タイプ Abstract
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
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1029/2020JA029086
収録物識別子
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 126, 号 9, p. e2020JA029086, 発行日 2021-09
ファイル公開日
日付 2022-03-11
日付タイプ Available
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