Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances

Mokhamad Nur Cahyadi; Eko Yuli Handoko; Ririn Wuri Rahayu; Kosuke Heki

doi:10.1186/s40623-021-01539-5

Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances

Mokhamad Nur Cahyadi^*, Eko Yuli Handoko, Ririn Wuri Rahayu, Kosuke Heki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

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 ~ 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. Graphical Abstract: [Figure not available: see fulltext.].

Original language	English
Article number	228
Journal	Earth, Planets and Space
Volume	73
Issue number	1
DOIs	https://doi.org/10.1186/s40623-021-01539-5
Publication status	Published - Dec 2021

Keywords

Asama
GNSS-TEC
Ionospheric disturbance
Kuchinoerabu-jima
Sakurajima
Shin-Moe
Volcanic explosion

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10.1186/s40623-021-01539-5

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title = "Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances",

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 ~ 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. Graphical Abstract: [Figure not available: see fulltext.].",

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AU - Cahyadi, Mokhamad Nur

AU - Handoko, Eko Yuli

AU - Rahayu, Ririn Wuri

AU - Heki, Kosuke

PY - 2021/12

Y1 - 2021/12

N2 - 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 ~ 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. Graphical Abstract: [Figure not available: see fulltext.].

AB - 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 ~ 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. Graphical Abstract: [Figure not available: see fulltext.].

KW - Asama

KW - GNSS-TEC

KW - Ionospheric disturbance

KW - Kuchinoerabu-jima

KW - Sakurajima

KW - Shin-Moe

KW - Volcanic explosion

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Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances

Abstract

Keywords

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