It has been 10 years since the ash cloud from the eruption of Eyjafjallajökull caused
unprecedented disruption to air traffic across Europe. During this event, the London Volcanic …

This paper presents a computationally efficient approach to evaluate multidimensional
expectation integrals. Specifically, certain nonproduct cubature points are constructed that …

Direct coupling of computer models is often difficult for computational and logistical reasons.
We propose coupling computer models by linking independently developed Gaussian …

Operational forecasting of volcanic ash and SO2 clouds is challenging due to the large
uncertainties that typically exist on the eruption source term and the mass removal …

Modeling can play a critical role in assessing and mitigating risks posed by natural hazards.
Uncertainties surrounding the modeling process can have important implications for the …

This paper presents an adaptive splitting and merging scheme for dynamic selection of
Gaussian kernels in a Gaussian mixture model. The Gaussian kernel in the Gaussian …

Due to the remote location of many volcanoes, there is substantial uncertainty about the
timing, amount and vertical distribution of volcanic ash released when they erupt. One …

Abstract Mount Etna, in Italy, is one of the most active volcanoes in the world and an ideal
laboratory to improve volcano ash monitoring and forecasting. During the volcanic episode …

A large volcanic eruption can generate large amounts of ash which affect the socio-
economic activities of surrounding areas, affecting airline transportation, socio-economics …

The motion of a neutrally buoyant circular particle in a clockwise double-lid-driven square
cavity is studied with the lattice Boltzmann method. To understand, predict, and control the …