Vent processes mirror the dynamics in the shallow plumbing system, which represent a fast-evolving zone where numerous simultaneous and interlinked processes affect the nature and style of eruptive events. Here, crystals grow, bubbles nucleate and migrate to the surface at different rates and magma fragments with varying efficiency resulting in a plethora of explosive eruptions types from mild to vigorous. Seismic and acoustic events, ground deformation and changes in the hydrothermal system often precede or follow the explosive activity.

Over the past decade, the integration of field observations, experimental studies, and theoretical models of volcanic processes, have enabled significant advances in the understanding of these processes. The use of new field-techniques such as high speed cameras and the increasing number of seismic networks, together with GPS and ground deformation measurements are producing high quality multi-parametric datasets. While advanced experimental studies on analogue and natural systems facilitate the investigation of parameters and mechanisms governing processes from magma evolution in shallow systems to explosive behaviour. A multidisciplinary approach integrating field-observation with experimental studies to constrain individual eruptive processes as well as to validate models is key to unlock the complex dynamics of explosive volcanic activity.

In this session we particularly welcome contributions that combine experimental studies with field observations. Further we like to stimulate discussion on how multidisciplinary approaches can be used to advance the interpretation of field observations.