%0 Conference Proceedings
%4 sid.inpe.br/mtc-m21d/2023/12.11.20.07
%2 sid.inpe.br/mtc-m21d/2023/12.11.20.07.28
%T Atmospheric waves caused by the Hunga Tonga-Hunga Ha‘apai volcanic eruption and their global propagation in the mesosphere/lower thermosphere observed by meteor radars and in the High-Altitude General Mechanistic Circulation Model
%D 2023
%A Stober, Gunter,
%A Vadas, Sharon,
%A Becker, Erich,
%A Liu, Alan,
%A Kozlovsky, Alexander,
%A Janches, Diego,
%A Qiao, Zishun,
%A Krochin, Witali,
%A Shi, Guochun,
%A Yi, Wen,
%A Zeng, Jie,
%A Brown, Peter,
%A Vida, Denis,
%A Hindley, Neil,
%A Jacobi, Christoph,
%A Murphy, Damian J.,
%A Buriti, Ricardo,
%A Andrioli, Vania Fátima,
%A Batista, Paulo Prado,
%A Marino, John,
%A Palo, Scott E.,
%A Thorsen, Denise,
%A Tsutsumi, Masaki,
%A Gulbrandsen, Njal,
%A Nozawa, Satonori,
%A Lester, Mark,
%A Baumgarten, Kathrin,
%A Kero, Johan,
%A Belvoa, Evgenia,
%A Mitchell, Nicholas J.,
%A Li, Na,
%@affiliation University of Bern
%@affiliation NorthWest Research Associates
%@affiliation NorthWest Research Associates
%@affiliation Embry-Riddle Aeronautical University
%@affiliation Sodankylä Geophysical Observatory
%@affiliation NASA/GSFC
%@affiliation Embry-Riddle Aeronautical University
%@affiliation University Bern
%@affiliation University Bern
%@affiliation University of Science and Technology of China
%@affiliation University of Science and Technology of China
%@affiliation University of Western Ontario
%@affiliation University of Western Ontario
%@affiliation University of Bath
%@affiliation University of Leipzig
%@affiliation Antarctic Division
%@affiliation Universidade Federal de Campina Grande
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation University of Colorado at Boulder
%@affiliation University of Colorado at Boulder
%@affiliation University of Alaska Fairbanks
%@affiliation NIPR National Institute of Polar Research
%@affiliation University of Tromsø
%@affiliation Nagoya University
%@affiliation University of Leicester
%@affiliation Fraunhofer IGD
%@affiliation Swedish Institute of Space Physics
%@affiliation IRF
%@affiliation University of Bath
%@affiliation China Research Institute of Radiowave Propagation
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%@electronicmailaddress vania.andrioli@inpe.br
%B AGU FAll Meeting
%C San Francisco, CA
%8 11-15 Dec. 2023
%I AGU
%S Proceedings
%X The Hunga Tonga-Hunga Haapai (HTHH) volcanic eruption on 15th January 2022 caused an ash plume that reached about 53 kilometer in altitude and released an enormous amount of water vapor into the stratosphere. Furthermore, the explosion launched Lamb waves and gravity waves into the atmosphere. These waves were detected in surface pressure data around the globe and left a detectable signature in ionospheric TEC. In this study, we present meteor radar wind observations from globally distributed monostatic meteor radars and advanced meteor radar networks such as CONDOR or the Nordic Meteor Radar Cluster. We identified the remnants of a potential Lamb wave signature in CONDOR high resolution 3DVAR+DIV winds. The globally distributed meteor radars were used to track the strongest HTHH gravity wave signatures around Earth and to measure the observed phase speeds of the eastward and westward gravity wave propagation, respectively. A similar methodology was applied to High Altitude Mechanistic General Circulation Model (HIAMCM) wind perturbations caused by secondary waves modeled from the dissipation of the primary volcanic gravity waves using images of the vertical updrafts identified from GOES-17 cloud-top temperatures. The remarkable agreement in the observed phase speeds for the eastward and westward gravity wave propagation between the observations and HIAMCM wind perturbations indicate that the mesospheric HTHH gravity waves are explainable by secondary waves from the eruption. This also demonstrates the close interplay between HIAMCM and the meteor radar wind observations, which by themselves do not provide the necessary information to discriminate the primary and secondary HTHH gravity waves.
%@language en