Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/83914

Title:	Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances
Authors:	Cahyadi, Mokhamad Nur Browse this author
	Handoko, Eko Yuli Browse this author
	Rahayu, Ririn Wuri Browse this author
	Heki, Kosuke Browse this author →KAKEN DB
Keywords:	Ionospheric disturbance
	Asama
	Shin-Moe
	Sakurajima
	Kuchinoerabu-jima
	Volcanic explosion
	GNSS-TEC
Issue Date:	2022
Publisher:	Springer
Journal Title:	Earth planets and space
Volume:	73
Issue:	1
Start Page:	228
Publisher DOI:	10.1186/s40623-021-01539-5
Abstract:	Using the ionospheric total electron content (TEC) data from ground-based Global Navigation Satellite System (GNSS) receivers in Japan, we compared ionospheric responses to five explosive volcanic eruptions 2004-2015 of the Asama, Shin-Moe, Sakurajima, and Kuchinoerabu-jima volcanoes. The TEC records show N-shaped disturbances with a period similar to 80 s propagating outward with the acoustic wave speed in the F region of the ionosphere. The amplitudes of these TEC disturbances are a few percent of the background absolute vertical TEC. We propose to use such relative amplitudes as a new index for the intensity of volcanic explosions.
Rights:	http://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/83914
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 日置幸介

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