In the framework of the IAVCEI (International Association of Volcanology and Chemistry of
the Earth Interior) intercomparison study on volcanic plume models, we present three …

A new fluid-dynamic model is developed to numerically simulate the non-equilibrium
dynamics of polydisperse gas–particle mixtures forming volcanic plumes. Starting from the …

In the framework of the IAVCEI (International Association of Volcanology and Chemistry of
the Earth Interior) initiative on volcanic plume models intercomparison, we discuss three …

The plume model ATHAM (Active Tracer High Resolution Atmospheric Model) is designed to
simulate explosive volcanic eruptions for a given mass flux of pyroclastic material under …

We performed an inter-comparison study of three-dimensional models of volcanic plumes. A
set of common volcanological input parameters and meteorological conditions were …

Predictions for the heights and downwind trajectories of volcanic plumes using integral
models are critical for the assessment of risks and climate impacts of explosive eruptions but …

Explosive volcanic eruptions propel high-velocity turbulent jets into the atmosphere and are
one of the most powerful and dangerous turbulent flows on Earth. Such eruptions are …

Sensitivity studies were performed with a complex nonhydrostatic volcano plume model that
explicitly treats turbulence and microphysics. The impact of environmental conditions such …

The entrainment of air by turbulent mixing plays a central role in the dynamics of volcanic
eruption clouds, as the amount of entrained air controls the height of the plume. In one …

We carry out a parametric study in order to identify and quantify the effects of uncertainties
on pivotal parameters controlling the dynamics of volcanic plumes. The study builds upon …