3-3-3-3-3-3-3-3-3-3-3-3-3 From: Alastair Hodgetts <Alastair.Hodgetts@xxxxxxxx> Dear colleagues, Abstract submission is open for the IAVCEI 2025 Scientific Assembly in Geneva, Switzerland between 29 June and 4 July 2025: https://on-line-form.eu/iavcei2025sa/abstracts/index.php <https://urldefense.com/v3/__https:/on-line-form.eu/iavcei2025sa/abstracts/index.php__;!!IKRxdwAv5BmarQ!dTeqC6SsJwzGwVxOa-23TyCQ7I7rnesyjxA2zbCBifxORWlDWEb8X9Yp3arfZy421QZtn8y_9q-jIUC5makDO7xH1w$> We invite submissions to our session: *The role of water in explosive eruptions and their products*. *Session Description:* Tephra can create the furthest reaching impacts from volcanic eruptions. Over the last few decades, our understanding of tephra generation, transport, deposition and preservation has greatly advanced, leading to improved modelling, forecasting and mitigation of the associated hazards. New observational techniques and recently identified processes mean this critical research is continuously evolving and improving, although interactions with water can complicate such investigations. This session aims to explore our current and future directions for understanding the role of water in explosive eruptions. Submissions on the dynamics of wet eruption columns/clouds, their partial or total collapse, phase transitions*,* ash aggregation, and the role of water on tephra sedimentation are encouraged. We aspire for a cross-disciplinary meeting of field geologists, physical volcanologists, geochemists, atmospheric scientists and hazard modellers, bringing together numerical, experimental, field and observational studies in anticipation of strengthened collaborations to ultimately improve hazard preparedness and lower risk from water-influenced eruptions. *This session is sponsored by the IAVCEI Commission on Tephra Hazard Modelling and WMO Advisory Group on Volcanic Science for Aviation Applications (AG-VSA).* Please note that abstract submission closes on 20 December 2024. We look forward to seeing many of you next year! Many thanks, Alastair Hodgetts (University of Edinburgh, UK), on behalf of the conveners Co-conveners: Larry Mastin (USGS Cascades Volcano Observatory, USA) Matteo Cerminara (INGV, Italy) Alison Graettinger (University of Missouri, USA) 3-3-3-3-3-3-3-3-3-3-3-3-3 ------------------------------
