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dc.contributor.authorStober, Gunter
dc.contributor.authorVadas, Sharon L.
dc.contributor.authorBecker, Erich
dc.contributor.authorLiu, Alan
dc.contributor.authorKozlovsky, Alexander
dc.contributor.authorJanches, Diego
dc.contributor.authorQiao, Zishun
dc.contributor.authorKrochin, Witali
dc.contributor.authorShi, Guochun
dc.contributor.authorYi, Wen
dc.contributor.authorZeng, Jie
dc.contributor.authorBrown, Peter
dc.contributor.authorVida, Denis
dc.contributor.authorHindley, Neil
dc.contributor.authorJacobi, Christoph
dc.contributor.authorMurphy, Damian
dc.contributor.authorBuriti, Ricardo
dc.contributor.authorAndrioli, Vania
dc.contributor.authorBatista, Paulo
dc.contributor.authorMarino, John
dc.contributor.authorPalo, Scott
dc.contributor.authorThorsen, Denise
dc.contributor.authorTsutsumi, Masaki
dc.contributor.authorGulbrandsen, Njål
dc.contributor.authorNozawa, Satonori
dc.contributor.authorLester, Mark
dc.contributor.authorBaumgarten, Kathrin
dc.contributor.authorKero, Johan
dc.contributor.authorBelova, Evgenia
dc.contributor.authorMitchell, Nicholas
dc.contributor.authorMoffat-Griffin, Tracy
dc.contributor.authorLi, Na
dc.date.accessioned2024-09-17T07:05:18Z
dc.date.available2024-09-17T07:05:18Z
dc.date.issued2024-04-24
dc.description.abstractThe Hunga Tonga–Hunga Ha'apai volcano erupted on 15 January 2022, launching Lamb waves and gravity waves into the atmosphere. In this study, we present results using 13 globally distributed meteor radars and identify the volcanogenic gravity waves in the mesospheric/lower thermospheric winds. Leveraging the High-Altitude Mechanistic general Circulation Model (HIAMCM), we compare the global propagation of these gravity waves. We observed an eastward-propagating gravity wave packet with an observed phase speed of 240 ± 5.7 m s<sup>−1</sup> and a westward-propagating gravity wave with an observed phase speed of 166.5 ± 6.4 m s<sup>−1</sup> . We identified these waves in HIAMCM and obtained very good agreement of the observed phase speeds of 239.5 ± 4.3 and 162.2 ± 6.1 m s<sup>−1</sup> for the eastward the westward waves, respectively. Considering that HI AMCM perturbations in the mesosphere/lower thermosphere were the result of the secondary waves generated by the dissipation of the primary gravity waves from the volcanic eruption, this affirms the importance of higherorder wave generation. Furthermore, based on meteor radar observations of the gravity wave propagation around the globe, we estimate the eruption time to be within 6 min of the nominal value of 15 January 2022 04:15 UTC, and we localized the volcanic eruption to be within 78 km relative to the World Geodetic System 84 coordinates of the volcano, confirming our estimates to be realistic.en_US
dc.identifier.citationStober, Vadas, Becker, Liu, Kozlovsky, Janches, Qiao, Krochin, Shi, Yi, Zeng, Brown, Vida, Hindley, Jacobi, Murphy, Buriti, Andrioli, Batista, Marino, Palo, Thorsen, Tsutsumi, Gulbrandsen, Nozawa, Lester, Baumgarten, Kero, Belova, Mitchell, Moffat-Griffin, Li. Gravity waves generated by the Hunga Tonga-Hunga Ha′apai volcanic eruption and their global propagation in the mesosphere/lower thermosphere observed by meteor radars and modeled with the High-Altitude general Mechanistic Circulation Model. Atmospheric Chemistry and Physics (ACP). 2024;24(8):4851-4873en_US
dc.identifier.cristinIDFRIDAID 2268284
dc.identifier.doi10.5194/acp-24-4851-2024
dc.identifier.issn1680-7316
dc.identifier.issn1680-7324
dc.identifier.urihttps://hdl.handle.net/10037/34735
dc.language.isoengen_US
dc.publisherCopernicus Publicationsen_US
dc.relation.journalAtmospheric Chemistry and Physics (ACP)
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleGravity waves generated by the Hunga Tonga-Hunga Ha′apai volcanic eruption and their global propagation in the mesosphere/lower thermosphere observed by meteor radars and modeled with the High-Altitude general Mechanistic Circulation Modelen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)