2-2-2-2-2-2-2-2-2-2-2-2-2 From: Giuseppe Salerno <giuseppe.salerno@xxxxxxx> Dear all, Your abstract submissions are very welcome for our interdisciplinary session: *Insights into Volcanic Emissions and their Impacts on the Environment and Health, ITS3.6/GMPV2* at the annual congress of EGU between 19 and 30 April 2021 in Vienna (Austria) https://meetingorganizer.copernicus.org/EGU21/session/40437 *Deadline abstract submission. 13 January 2021, 13:00 CET* Session Detail Volcanoes release gas effluents and aerosol particles into the atmosphere during eruptive episodes and by quiescent emissions. Volcanic degassing exerts a dominant role in forcing the timing and nature of volcanic unrest and eruptions. Understanding the exsolution processes of gas species dissolved in magma, and measuring their emissions is crucial to characterize the eruptive mechanism and evaluate the subsequent impacts on the atmospheric composition, the environment, and the biosphere. Emissions range from silent exhalation through soils to astonishing eruptive clouds that release gas and particles into the atmosphere, potentially exerting a strong impact on the Earthâ??s radiation budget and climate over a range of temporal and spatial scales. Strong explosive volcanic eruptions are a major natural driver of climate variability at interannual to multidecadal time scales. Quiescent passive degassing and smaller-magnitude eruptions on the other hand can impact on regional climate system. Through direct exposure and indirect effects, volcanic emissions may influence local-to-regional air quality and seriously affect the biosphere and environment. Volcanic gases can also present significant hazards to populations downwind of an eruption, in terms of human, animal, and plant health, which subsequently can affect livelihoods and cause socio-economic challenges. Gas emissions are measured and monitored via a range of in-situ and remote sensing techniques, to gain insights into both the subterranean-surface processes and quantify the extent of their impacts. In addition, modelling of the subsurface and atmospheric/climatic processes, as well as laboratory experiments, are fundamental to the interpretation of field-based and satellite observations. This session focuses on the state-of-the-art and interdisciplinary science concerning all aspects of volcanic degassing and impacts of relevance to the Volcanology, Environmental, Atmospheric and Climate sciences (including regional climate), and Hazard assessment. We invite contributions on all aspects of volcanic plumes science, their observation, modelling, and impacts. We welcome contributions that address issues around the assessment of hazards and impacts from volcanic degassing both in crises and at persistently degassing volcanoes. Looking forward to receiving your abstracts, Giuseppe on behalf of the co-conveners Giuseppe Salerno, Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo Pasqualle Sellitto, CNRS, Laboratoire Inter-universitaire des Systèmes Atmosphériques Tjarda Roberts, LPC2E-CNRS & University of Orleans, France Emily Mason, University of Cambridge, Department of Earth Sciences Amy Donovan, University of Cambridge, Department of Geography 2-2-2-2-2-2-2-2-2-2-2-2-2 ------------------------------
