Atmospheric modes excited by the 2021 August eruption of the Fukutoku-Okanoba volcano, Izu–Bonin Arc, observed as harmonic TEC oscillations by QZSS

Heki, Kosuke; Fujimoto, Tatsuya

Earth, Planets and Space, 2022, 74(1), 27

Permalink : https://hdl.handle.net/2115/90340

このアイテムのアクセス数:278件（2026-03-16 07:04 集計）

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アクセス権	open access
URI	https://hdl.handle.net/2115/90340
タイトル	Atmospheric modes excited by the 2021 August eruption of the Fukutoku-Okanoba volcano, Izu–Bonin Arc, observed as harmonic TEC oscillations by QZSS
著者	e-Rad_Researcher 30280564 著者名 Heki, Kosuke
著者	著者名 Fujimoto, Tatsuya
言語	英語
キーワード	QZSS
	GNSS
	Ionospheric disturbance
	Total electron content
	Fukutoku-Okanoba
	Plinian eruption
	Atmospheric mode
発行日	2022-02-09
出版者	Springer
収録物名	Earth, Planets and Space
巻(号)	74(1)
ページ	27
抄録	Continuous Plinian eruptions of volcanoes often excite atmospheric resonant oscillations with several distinct periods of a few minutes. We detected such harmonic oscillations by the 2021 August eruption of the Fukutoku-Okanoba volcano, a submarine volcano in the Izu–Bonin arc, in ionospheric total electron content (TEC) observed from Global Navigation Satellite System (GNSS) stations deployed on three nearby islands, Chichijima, Hahajima, and Iwojima. Continuous records with the geostationary satellite of Quasi-Zenith Satellite System (QZSS) presented four frequency peaks of such atmospheric modes. The harmonic TEC oscillations commenced at ~ 5:16 UT with a large amplitude but decayed in a few hours.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
EISSN	1880-5981
NCID	AA11211921
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1186/s40623-022-01587-5