@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 = "04 maio 2024"
}