@InProceedings{StoberVBLKJQKSYZBVHJMBABMPTTGNLBKBML:2023:AtWaCa,
               author = "Stober, Gunter and Vadas, Sharon and Becker, Erich and Liu, Alan 
                         and Kozlovsky, Alexander and Janches, Diego and Qiao, Zishun and 
                         Krochin, Witali and Shi, Guochun and Yi, Wen and Zeng, Jie and 
                         Brown, Peter and Vida, Denis and Hindley, Neil and Jacobi, 
                         Christoph and Murphy, Damian J. and Buriti, Ricardo and Andrioli, 
                         Vania F{\'a}tima and Batista, Paulo Prado and Marino, John and 
                         Palo, Scott E. and Thorsen, Denise and Tsutsumi, Masaki and 
                         Gulbrandsen, Njal and Nozawa, Satonori and Lester, Mark and 
                         Baumgarten, Kathrin and Kero, Johan and Belvoa, Evgenia and 
                         Mitchell, Nicholas J. and Li, Na",
          affiliation = "{University of Bern} and {NorthWest Research Associates} and 
                         {NorthWest Research Associates} and {Embry-Riddle Aeronautical 
                         University} and {Sodankyl{\"a} Geophysical Observatory} and 
                         NASA/GSFC and {Embry-Riddle Aeronautical University} and 
                         {University Bern} and {University Bern} and {University of Science 
                         and Technology of China} and {University of Science and Technology 
                         of China} and {University of Western Ontario} and {University of 
                         Western Ontario} and {University of Bath} and {University of 
                         Leipzig} and {Antarctic Division} and {Universidade Federal de 
                         Campina Grande} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {University of Colorado at Boulder} and {University of Colorado at 
                         Boulder} and {University of Alaska Fairbanks} and {NIPR National 
                         Institute of Polar Research} and {University of Tromsø} and 
                         {Nagoya University} and {University of Leicester} and {Fraunhofer 
                         IGD} and {Swedish Institute of Space Physics} and IRF and 
                         {University of Bath} and {China Research Institute of Radiowave 
                         Propagation}",
                title = "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",
            booktitle = "Proceedings...",
                 year = "2023",
         organization = "AGU FAll Meeting",
            publisher = "AGU",
             abstract = "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.",
  conference-location = "San Francisco, CA",
      conference-year = "11-15 Dec. 2023",
             language = "en",
        urlaccessdate = "2024, May 04"
}