1-1-1-1-1-1-1-1-1-1-1-1-1-1 From: Simon Carn <scarn@xxxxxxx> Dear colleagues, We invite your contributions to our 2022 Fall AGU Meeting session co-organized by the Volcanology, Geochemistry and Petrology (VGP) and Atmospheric Sciences (AS) sections of AGU: V004 - Dynamics and Atmospheric Impacts of the January 2022 Hunga Tonga-Hunga Ha'apai Eruption The explosive eruption of submarine Hunga Tonga-Hunga Ha'apai (HTHH) volcano (Tonga) in January 2022 captured the attention of the global scientific community with its towering eruption column, intense volcanic lightning storm, globally-propagating atmospheric waves, and extensive tsunamis that impacted the Kingdom of Tonga and regions further afield. It may rank as the most energetic volcanic explosion on Earth since the great 1883 eruption of Krakatau (Indonesia). The products of the 2022 HTHH eruption, and their potential atmospheric and climate impacts, appear enigmatic relative to previously observed eruptions of comparable magnitude in the modern era, and include relatively sulfur-poor gas emissions, a significant stratospheric aerosol veil, and an unprecedented perturbation of stratospheric water vapor. The eruption may thus represent a new paradigm for explosive, shallow submarine volcanic activity and provides new insights into the potential atmospheric and climate impacts of this style of volcanism. For this interdisciplinary session we invite contributions on diverse aspects of the HTHH eruption, including phreatomagmatic eruption dynamics and the associated volcanic hazards, plume modeling, satellite observations of the eruption and its products, volcanic lightning analysis, and model simulations or observations of its atmospheric impacts. https://urldefense.com/v3/__https://agu.confex.com/agu/fm22/prelim.cgi/Session/161566__;!!IKRxdwAv5BmarQ!Z-SnPOchbkVZfFEUJ4t77I5lz6wXDJjnnN9kFfV8JpeFJ1iCSJTiSQT_cpjB2hH6NNcnKcVnAwKs$ The abstract deadline is August 3. Best regards, Simon Carn (Michigan Tech) Kristen Fauria (Vanderbilt Univ) Peter Colarco (NASA GSFC) Larry Mastin (USGS CVO) 1-1-1-1-1-1-1-1-1-1-1-1-1-1 ------------------------------
