Tsunami detection by GPS-derived ionospheric total electron content

Abstract To unravel the relationship between earthquake and tsunami using ionospheric total electron content (TEC) changes, we analyzed two Chilean tsunamigenic subduction earthquakes: the 2014 Pisagua Mw 8.1 and the 2015 Illapel Mw 8.3. During the Pisagua earthquake, the TEC changes were detected a...

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Autores principales:	Mahesh N. Shrivastava, Ajeet K. Maurya, Gabriel Gonzalez, Poikayil S. Sunil, Juan Gonzalez, Pablo Salazar, Rafael Aranguiz
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/39e14d36277e4186b70dd388da7ff43c
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spelling	oai:doaj.org-article:39e14d36277e4186b70dd388da7ff43c2021-12-02T18:02:55ZTsunami detection by GPS-derived ionospheric total electron content10.1038/s41598-021-92479-32045-2322https://doaj.org/article/39e14d36277e4186b70dd388da7ff43c2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92479-3https://doaj.org/toc/2045-2322Abstract To unravel the relationship between earthquake and tsunami using ionospheric total electron content (TEC) changes, we analyzed two Chilean tsunamigenic subduction earthquakes: the 2014 Pisagua Mw 8.1 and the 2015 Illapel Mw 8.3. During the Pisagua earthquake, the TEC changes were detected at the GPS sites located to the north and south of the earthquake epicenter, whereas during the Illapel earthquake, we registered the changes only in the northward direction. Tide-gauge sites mimicked the propagation direction of tsunami waves similar to the TEC change pattern during both earthquakes. The TEC changes were represented by three signals. The initial weaker signal correlated well with Acoustic Rayleigh wave (AWRayleigh), while the following stronger perturbation was interpreted to be caused by Acoustic Gravity wave (AGWepi) and Internal Gravity wave (IGWtsuna) induced by earthquakes and subsequent tsunamis respectively. Inevitably, TEC changes can be utilized to evaluate earthquake occurrence and tsunami propagation within a framework of multi-parameter early warning systems.Mahesh N. ShrivastavaAjeet K. MauryaGabriel GonzalezPoikayil S. SunilJuan GonzalezPablo SalazarRafael AranguizNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mahesh N. Shrivastava Ajeet K. Maurya Gabriel Gonzalez Poikayil S. Sunil Juan Gonzalez Pablo Salazar Rafael Aranguiz Tsunami detection by GPS-derived ionospheric total electron content
description	Abstract To unravel the relationship between earthquake and tsunami using ionospheric total electron content (TEC) changes, we analyzed two Chilean tsunamigenic subduction earthquakes: the 2014 Pisagua Mw 8.1 and the 2015 Illapel Mw 8.3. During the Pisagua earthquake, the TEC changes were detected at the GPS sites located to the north and south of the earthquake epicenter, whereas during the Illapel earthquake, we registered the changes only in the northward direction. Tide-gauge sites mimicked the propagation direction of tsunami waves similar to the TEC change pattern during both earthquakes. The TEC changes were represented by three signals. The initial weaker signal correlated well with Acoustic Rayleigh wave (AWRayleigh), while the following stronger perturbation was interpreted to be caused by Acoustic Gravity wave (AGWepi) and Internal Gravity wave (IGWtsuna) induced by earthquakes and subsequent tsunamis respectively. Inevitably, TEC changes can be utilized to evaluate earthquake occurrence and tsunami propagation within a framework of multi-parameter early warning systems.
format	article
author	Mahesh N. Shrivastava Ajeet K. Maurya Gabriel Gonzalez Poikayil S. Sunil Juan Gonzalez Pablo Salazar Rafael Aranguiz
author_facet	Mahesh N. Shrivastava Ajeet K. Maurya Gabriel Gonzalez Poikayil S. Sunil Juan Gonzalez Pablo Salazar Rafael Aranguiz
author_sort	Mahesh N. Shrivastava
title	Tsunami detection by GPS-derived ionospheric total electron content
title_short	Tsunami detection by GPS-derived ionospheric total electron content
title_full	Tsunami detection by GPS-derived ionospheric total electron content
title_fullStr	Tsunami detection by GPS-derived ionospheric total electron content
title_full_unstemmed	Tsunami detection by GPS-derived ionospheric total electron content
title_sort	tsunami detection by gps-derived ionospheric total electron content
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/39e14d36277e4186b70dd388da7ff43c
work_keys_str_mv	AT maheshnshrivastava tsunamidetectionbygpsderivedionospherictotalelectroncontent AT ajeetkmaurya tsunamidetectionbygpsderivedionospherictotalelectroncontent AT gabrielgonzalez tsunamidetectionbygpsderivedionospherictotalelectroncontent AT poikayilssunil tsunamidetectionbygpsderivedionospherictotalelectroncontent AT juangonzalez tsunamidetectionbygpsderivedionospherictotalelectroncontent AT pablosalazar tsunamidetectionbygpsderivedionospherictotalelectroncontent AT rafaelaranguiz tsunamidetectionbygpsderivedionospherictotalelectroncontent
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Tsunami detection by GPS-derived ionospheric total electron content

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