Tephra transport models try to predict atmospheric dispersion and sedimentation of tephra
depending on meteorology, particle properties, and eruption characteristics, defined by …

We present a narrative of the eruptive events culminating in the cataclysmic January 15,
2022 eruption of Hunga Tonga-Hunga Ha'apai Volcano by synthesizing diverse preliminary …

Many explosive terrestrial volcanic eruptions are accompanied by lightning and other
atmospheric electrical phenomena. The plumes produced generate large perturbations in …

Unoccupied aircraft systems (UAS) are developing into fundamental tools for tackling the
grand challenges in volcanology; here, we review the systems used and their diverse …

Experimental investigations in a recirculating wind tunnel of the mechanisms of formation of
accretionary lapilli have demonstrated that growth is controlled by collision of liquid-coated …

Large‐scale volcanic eruptions produce fine ash (< 200 μm) which has a long atmospheric
residence time (1 hour or more) and can be transported great distances from the volcanic …

Binding between initially cohesionless ash particles to form concentric accretionary lapilli is
provided primarily by the capillary forces of liquid bridges from condensed moisture and by …

Volcanic lightning, perhaps the most spectacular consequence of the electrification of
volcanic plumes, has been implicated in the origin of life on Earth, and may also exist in …

Explosive volcanic eruptions are commonly associated with intense electrical activity and
lightning. Direct measurement of the electric potential at the vent, where the electric activity …

Lightning and electrification at volcanoes are important because they represent a hazard in
their own right, they are a component of the global electrical circuit, and because they …