08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
8:00 - 8:30 (30min)
Registration
Registration for on site participants
8:30 - 10:00 (1h30)
Plume evolution in 1st month after, explosivity, waves & past eruptions
Room Jean Jaurès
› Did steam drive the giant 15 January 2022 plume from Hunga Volcano, Tonga?
- Larry Mastin, U.S. Geological Survey, Cascades Volcano Observatory
08:30-08:45 (15min)
› Sulfur budget of the 2022 Hunga eruption: new insights from UV retrievals of mid-stratospheric aerosols
- Simon Carn, Michigan Technological University
08:45-09:00 (15min)
› TROPOMI UV retrievals of mid-stratospheric aerosols from the 2022 Hunga eruption
- Nickolay A. Krotkov, NASA Goddard Space Flight Center
09:00-09:15 (15min)
› Hunga Lamb wave propagation properties illustrated through numerical modelling and GOES-R observations
- Ákos Horváth, Meteorological Institute, Universität Hamburg, Hamburg
09:15-09:30 (15min)
› The fast conversion of sulfate aerosols in the Hunga plume as seen from satellites
- Bernard Legras, Laboratoire de Météorologie Dynamique (LMD) - IPSL
09:30-09:45 (15min)
› Stratospheric ozone depletion inside the volcanic plume shortly after the 2022 Hunga Tonga eruption
- Yunqian Zhu, CIRES/NOAA CSL
09:45-10:00 (15min)
10:00 - 10:30 (30min)
Coffee break
10:30 - 12:00 (1h30)
Volcanic cloud progression & hemispheric dispersion (water vapour & aerosol)
Room Jean Jaurès
› Vertical separation and meridional transport of the Hunga water vapor and aerosol plumes
- Elizabeth Asher, CIRES/ NOAA Global Monitoring Laboratory [Boulder]
10:30-10:45 (15min)
› Tracking the Uncommon Optical and Microphysical Properties of the Hunga Aerosols
- Alexandre Baron, Cooperative Institute for Research in Environmental Sciences, NOAA Chemical Sciences Laboratory
10:45-11:00 (15min)
› Growth and global persistence of stratospheric sulfate aerosols from the 2022 Hunga Tonga–Hunga Ha'apai volcanic eruption
- Marie Boichu, CNRS/Univ. Lille
11:00-11:15 (15min)
› GEOS Chemistry Climate Model Simulations of the Volcanic Cloud Dispersion from the January 2022 Hunga Eruption
- Peter Colarco, NASA Goddard Space Flight Center
11:15-10:30 (-1h-45)
› Global transport and evolution of the Hunga sulfates and water from satellite and ground-based observations: a 2-year aftermath
- Sergey Khaykin, STRATO - LATMOS
11:30-11:45 (15min)
› Interactive and microphysical simulations of the stratospheric aerosol layer: Global size distribution variation after moderate volcanic enhancement
- Graham Mann, School of Earth & Environment, University of Leeds, National Centre for Atmospheric Science, University of Leeds
11:45-12:00 (15min)
12:00 - 13:30 (1h30)
Lunch
13:30 - 15:00 (1h30)
Posters
Room Jean Jaurès
› Diabatic heating rates and early dispersion of the stratospheric plume from the 2022 Hunga eruption
- Aurélien Podglajen, Laboratoire de Météorologie Dynamique (UMR 8539)
13:30-15:00 (1h30)
› Simulation of the water vapor and ash transport in the first week after Hunga Tonga Ha'apai eruption
- Ali Hoshyaripour, KIT
13:30-15:00 (1h30)
› Using convection-resolving simulations to study plume dynamics and the early plume evolution of the Hunga Tonga-Hunga Ha'apai eruption
- Julia Bruckert, Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research - Troposphere Research (IMKTRO)
13:30-15:00 (1h30)
› Observations of the Hunga Tonga-Hunga Ha'apai eruption clouds with Infrared Spectrometers
- Isabelle A. Taylor, COMET, Atmospheric, Oceanic and Planetary Physics, University of Oxford
13:30-15:00 (1h30)
› Stratospheric heating rates in young volcanic plumes from Hunga-like eruptions: a sensitivity study
- Duc Dung Tran, Laboratoire de Météorologie Dynamique (UMR 8539)
13:30-15:00 (1h30)
› Characteristics of the Hunga Volcano eruption plume based on rapid response measurements
- Paul Walter, St. Edward's University
13:30-15:00 (1h30)
› Hunga-Tonga volcanic ash's circumnavigation as observed by Aeolus using L2A Aerosol Product
- DIMITRI TRAPON, Leibniz Institute for Tropospheric Research
13:30-15:00 (1h30)
› The Ongoing Journey of the 2022 Hunga Tonga-Hunga Ha'apai Aerosol Plume
- Ghassan Taha, Morgan State University, GSFC Earth Sciences Division
13:31-15:00 (1h29)
› Impact of the 2022 Hunga Tonga Volcano on Global Middle Atmosphere Water Vapour and Introduction to Swiss H2O Hub
- Alistair Bell, University of Bern, Institute of Applied Physics [Bern], Oeschger Centre for Climate Change Research
13:31-15:00 (1h29)
› Retrieval and Evaluation of Aerosol Extinction Coefficients from OMPS-LP measurements after the Hunga Tonga eruption
- Christine Pohl, Institute of Environmental Studies, University of Bremen
13:31-15:00 (1h29)
› OMPS-LP Aerosol Extinction Coefficients And Their Applicability in GloSSAC
- Mahesh Kovilakam, ADNET Inc/NASA
13:31-15:00 (1h29)
› Microphysical model simulations of formation and spatiotemporal evolution of meteoric-sulfuric particles in the stratospheric aerosol layer
- Masaru Yoshioka, School of Earth & Environment, University of Leeds
13:31-15:00 (1h29)
› Stratospheric aerosol and trace gas observations by the Stratospheric Aerosol and Gas Experiment (SAGE) in the aftermath of the 2022 Hunga Tonga - Hunga Ha'apai eruption
- David Flittner, NASA Langley Research Center
13:31-15:00 (1h29)
› Impacts of the Hunga Tonga-Hunga Ha'apai eruption simulated with SOCOLv4 ESM
- Timofei Sukhodolov, Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center
13:32-15:00 (1h28)
› Influence of the Hunga Tonga -Hunga Ha'apai eruption on the stratospheric transport in ground-based observations and models using nitrous oxide
- Daniele Minganti, Royal Belgian Institute for Space Aeronomy
13:32-15:00 (1h28)
› The chemical effect of increased water vapor from the Hunga Tonga-Hunga Ha'apai eruption on the Antarctic ozone hole
- Ingo Wohltmann, Alfred Wegener Institute for Polar and Marine Research
13:33-15:00 (1h27)
› Contrasting stratospheric chlorine processes on volcanic and wildfire aerosols
- Peidong Wang, MIT
13:33-15:00 (1h27)
› ENSO response to the Hunga-Tonga eruption in the HTHH-MOC-EXP1 multi-model ensemble
- Davide Zanchettin, University Ca' Foscari of Venice, Dept. Environmental Sciences, Informatics and Statistics - Stergios Misios, Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, Research Centre for Atmospheric Physics and Climatology, Academy of Athens
13:34-15:00 (1h26)
› A quantification of the radiative forcing of Hunga eruption
- Yi Huang, McGill University
13:34-15:00 (1h26)
› The simulated climate impacts of the Hunga Tonga-Hunga Ha'apai eruption in WACCM6-MAM
- Zhihong Zhuo, Department of Geosciences, University of Oslo
13:34-15:00 (1h26)
› Retrieving radiative properties of stratospheric aerosols from satellite measurements
- Andrin Jörimann, Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center PMOD/WRC, Institute for Atmospheric and Climate Science
13:34-15:00 (1h26)
15:00 - 15:30 (30min)
Coffee break
15:30 - 17:00 (1h30)
Volcanic cloud progression & hemispheric dispersion (water vapour & aerosol)
Room Jean Jaurès
› Results from the BraVo campaign
- Jean-Paul Vernier, National Institute of Aerospace [Hampton]
15:30-15:45 (15min)
› Investigating biases in limb measurements after the Hunga eruption: OSIRIS, OMPS, and SAGE
- Adam Bourassa, University of Saskatchewan - Landon Rieger, University of Saskatchewan
15:45-16:00 (15min)
› Umbrella cloud characteristics and fall deposit size of the January 15, 2022 eruption of Hunga Volcano
- Kristen Fauria, Vanderbilt University
16:00-16:15 (15min)
› Microphysical evolution and global transport of the stratospheric aerosol plume, based on in situ observations
- Corinna Kloss, Forschungszentrum Jülich GmbH, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
16:15-16:30 (15min)
› Long-term tracking and analysis of the stratospheric sulfate aerosol plume of the 2022 Hunga eruption
- Clair Duchamp, Laboratoire de Météorologie Dynamique (UMR 8539)
16:30-16:45 (15min)
› The Hunga eruption and the future of stratospheric water vapor
- Luis Millan, Jet Propulsion Laboratory
16:45-17:00 (15min)
8:30 - 10:00 (1h30)
Effect on stratospheric cooling, dynamics and transport
Room Jean Jaurès
› Hunga eruption induced changes to the stratospheric mid-latitude and tropical circulation
- Lawrence Coy, NASA Goddard Space Flight Center
08:30-08:45 (15min)
› Observed Impacts of the Hunga Eruption on Stratospheric Temperature
- Matthias Stocker, Wegener Center for Climate and Global Change
08:45-09:00 (15min)
› Stratospheric impacts of the Hunga H2O and aerosol perturbations and QBO
- Eric Fleming, NASA Goddard Space Flight Center, Science Systems and Applications, Inc. [Lanham]
09:00-09:15 (15min)
› Hunga Tonga impacts on atmospheric circulation and transport, and their links with ozone and surface climate - HTHH-MOC preliminary insights
- Ewa Bednarz, Cooperative Institute for Research in Environmental Sciences, NOAA Chemical Sciences Laboratory
09:15-09:30 (15min)
› Disturbing the Middle Stratospheric Balance: The Enduring Impact of Hunga Tonga-Hunga Ha'apai volcanic eruption
- Ghouse Basha, National Atmospheric Research Laboratory [Tirupati]
09:30-09:45 (15min)
› Long-term temperature impacts of Hunga in the stratosphere and above
- William Randel, National Center for Atmospheric Research
09:45-10:00 (15min)
10:00 - 10:30 (30min)
Coffee break
10:30 - 12:00 (1h30)
Effects on ozone, OH, and stratospheric chemistry
Room Jean Jaurès
› Stratospheric chlorine processing after the unprecedented Hunga Tonga eruption
- Jun Zhang, NSF National Center for Atmospheric Research - Peidong Wang, Massachusetts Institute of Technology
10:30-10:45 (15min)
› Effects ot the Hunga Tonga eruption on stratospheric chemistry in 2022 and 2023 as simulated by EMAC
- Christoph Bruehl, MPI for Chemistry, Mainz
10:45-11:00 (15min)
› The Influence of Stratospheric Hydration from the Hunga Eruption on Chemical Processing in the Stratospheric Winter Polar Vortices
- Michelle Santee, Jet Propulsion Laboratory
11:00-11:15 (15min)
› Impact of Hunga Tonga-Hunga Ha'apai water vapour on polar vortex dehydration and ozone depletion: Antarctic 2023 and Arctic 2024
- Xin Zhou, School of Atmospheric Sciences, Chengdu University of Information Technology, School of Earth and Environment, University of Leeds
11:15-11:30 (15min)
› Impact of the Hunga Tong-Hunga Ha'apai eruption on the Polar Stratospheric Clouds observed by the lidar observatory at Concordia station
- Marcellinus Snels, Institute of Atmospheric Sciences and Climate
11:30-11:45 (15min)
› Observing and Projecting the Lasting Fate of the Hunga Eruption on Atmospheric Water Vapor and Hydroxyl Radical
- Luke Oman, NASA Goddard Space Flight Center
11:45-12:00 (15min)
12:00 - 13:30 (1h30)
Lunch
13:30 - 14:00 (30min)
Effect on upper stratosphere to thermosphere and upper BDC branch
› Transport of the Hunga Tonga - Hunga Ha'apai H2O anomaly through the mesosphere – comparing observation with modeling
- Sandra Wallis, University of Greifswald
13:30-13:45 (15min)
› Potential Impact of the HTHH Volcanic Eruption on Future PMCs
- Wandi Yu, Lawrence Livermore National Laboratory
13:45-14:00 (15min)
14:00 - 15:00 (1h)
Radiative effects, surface cooling & fate of the stratospheric water vapour
› What is the instantaneous and adjusted radiative forcing of the Hunga eruption, and why is the Hunga eruption more effective in producing stratospheric aerosol optical depth than the volcanic injections just over the tropopause layer?
- Georgiy Stenchikov, King Abdullah University of Science and Technology [Saudi Arabia]
14:00-14:15 (15min)
› Evolution of the Climate Forcing During the Two Years after the Hunga Tonga-Hunga Ha'apai Eruption
- Mark Schoeberl, STC
14:15-14:30 (15min)
› The radiative impact of the 2022 Hunga Tonga-Hunga Ha'apai stratospheric eruption: a 2-year perspective
- Pasquale Sellitto, Laboratoire Interuniversitaire des Systèmes Météorologiques (LISA) - IPSL
14:30-14:45 (15min)
› Radiative effect of the increase in stratospheric water vapour from the Honga-Tonga eruption
- Gunnar Myhre, CICERO
14:45-15:00 (15min)
15:00 - 15:30 (30min)
Coffee break
15:30 - 17:00 (1h30)
Posters and modelling meeting
Room Jean Jaurès
19:00 - 22:00 (3h)
Dinner
9:00 - 12:00 (3h)
Group meetings for report chapters
12:00 - 13:30 (1h30)
Lunch
13:00 - 16:00 (3h)
Report lead and co-lead authors meeting
