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Atmospheric and ionospheric waves induced by the Hunga eruption on 15 January 2022, Doppler sounding and infrasound
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SYSNO ASEP 0567900 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Atmospheric and ionospheric waves induced by the Hunga eruption on 15 January 2022, Doppler sounding and infrasound Author(s) Chum, Jaroslav (UFA-U) RID, ORCID
Šindelářová, Tereza (UFA-U) RID, ORCID
Koucká Knížová, Petra (UFA-U) RID, ORCID
Podolská, Kateřina (UFA-U) RID, ORCID
Rusz, Jan (UFA-U) ORCID, RID
Baše, Jiří (UFA-U) RID, ORCID
Nakata, H. (JP)
Hosokawa, K. (JP)
Danielides, M. (DE)
Schmidt, C. (DE)
Knez, L. (DE)
Liu, J. Y. (TW)
Molina, M. G. (AR)
Fagre, M. (AR)
Katamzi-Joseph, Z. (ZA)
Ohya, H. (JP)
Omori, T. (JP)
Laštovička, Jan (UFA-U) RID, ORCID
Obrazová, Dalia (UFA-U) RID, ORCID
Kouba, Daniel (UFA-U) RID, ORCID
Urbář, Jaroslav (UFA-U) RID, ORCID
Truhlík, Vladimír (UFA-U) RID, ORCIDNumber of authors 22 Source Title Geophysical Journal International - ISSN 0956-540X
Roč. 233, č. 2 (2023), s. 1429-1443Number of pages 15 s. Language eng - English Country GB - United Kingdom Keywords Ionosphere/atmosphere interactions ; Acoustic-gravity waves ; Explosive volcanism ; Atmospheric effects (volcano) Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) R&D Projects LTAUSA17100 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UFA-U - RVO:68378289 UT WOS 001038389500039 EID SCOPUS 85168123263 DOI 10.1093/gji/ggac517 Annotation The massive explosive eruption of the Hunga volcano on 15 January 2022 generated atmospheric waves that were recorded around the globe and affected the ionosphere. The paper focuses on observations of atmospheric waves in the troposphere and ionosphere in Europe, however, a comparison with observations in East Asia, South Africa and South America is also provided. Unlike most recent studies of waves in the ionosphere based on the detection of changes in the total electron content, this study builds on detection of ionospheric motions at specific altitudes using continuous Doppler sounding. In addition, much attention is paid to long-period infrasound (periods longer than ∼50 s), which in Europe is observed simultaneously in the troposphere and ionosphere about an hour after the arrival of the first horizontally propagating pressure pulse (Lamb wave). It is shown that the long-period infrasound propagated approximately along the shorter great circle path, similar to the previously detected pressure pulse in the troposphere. It is suggested that the infrasound propagated in the ionosphere probably due to imperfect refraction in the lower thermosphere. The observation of infrasound in the ionosphere at such large distances from the source (over 16 000 km) is rare and differs from ionospheric infrasound detected at large distances from the epicenters of strong earthquakes, because in the latter case the infrasound is generated locally by seismic waves. An unusually large traveling ionospheric disturbance (TID) observed in Europe and associated with the pressure pulse from the Hunga eruption is also discussed. Doppler sounders in East Asia, South Africa and South America did not record such a significant TID. However, TIDs were observed in East Asia around times when Lamb waves passed the magnetically conjugate points. A probable observation of wave in the mesopause region in Europe approximately 25 min after the arrival of pressure pulse in the troposphere using a 23.4 kHz signal from a transmitter 557 km away and a coincident pulse in electric field data are also discussed. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2024 Electronic address https://academic.oup.com/gji/advance-article/doi/10.1093/gji/ggac517/6960676?login=true
Number of the records: 1