Characterizing Volcanic Ash Density and Its Implications on Settling Dynamics
Sing Lau,
Roy G. Grainger,
Isabelle A. Taylor
Abstract:Volcanic ash clouds are carefully monitored as they present a significant hazard to humans and aircraft. The primary tool for forecasting the transport of ash from a volcano is dispersion modeling. These models make a number of assumptions about the size, sphericity and density of the ash particles. Few studies have measured the density of ash particles or explored the impact that the assumption of ash density might have on the settling dynamics of ash particles. In this paper, the raw apparent density of 23 s… Show more
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