Impact of Hunga Tonga-Hunga Ha’apai water vapour on polar vortex dehydration and ozone depletion: Antarctic 2023 and Arctic 2024

• Main Authors: Zhou, Xin, Heddell, Saffron, Dhomse, Sandip, Feng, Wuhu, Mann, Graham, Pumphrey, Hugh, Kerridge, Brian, Latter, Barry, Siddans, Richard, Ventress, Lucy, Querel, Richard, Smale, Penny, Asher, Elizabeth, Hall, Emrys, Bekki, Slimane, Chipperfield, Martyn
• Other Authors: School of Atmospheric Sciences Chengdu (SAS), Chengdu University of Information Technology (CUIT), School of Earth and Environment Leeds (SEE), University of Leeds, NERC National Centre for Earth Observation (NCEO), Natural Environment Research Council (NERC), National Centre for Atmospheric Science Leeds (NCAS), School of Geosciences Edinburgh, University of Edinburgh (Edin.), STFC Rutherford Appleton Laboratory (RAL), Science and Technology Facilities Council (STFC), National Institute of Water and Atmospheric Research Lauder (NIWA), Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder -National Oceanic and Atmospheric Administration (NOAA), ESRL Global Monitoring Laboratory Boulder (GML), NOAA Earth System Research Laboratory (ESRL), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), STRATO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2024
• Subjects: [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Arctic; Antarctic; The Antarctic; Tonga; Midwinter; Scott Base; Antarc*
• Online Access: https://insu.hal.science/insu-04508301; https://doi.org/10.5194/egusphere-egu24-8370

International audience The January 2022 eruption of Hunga Tonga-Hunga Ha’apai (HTHH) injected a huge amount (~150 Tg) of water vapour (H2O) into the stratosphere, along with small amount of sulfur dioxide (SO2). Following slow transport in the meridional Brewer-Dobson circulation, the additional H2O...