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Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances

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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
Volcanic explosion
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.
Type: article
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)

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