Articles | Volume 8, issue 8
https://doi.org/10.5194/gmd-8-2447-2015
https://doi.org/10.5194/gmd-8-2447-2015
Model description paper
 | 
06 Aug 2015
Model description paper |  | 06 Aug 2015

PLUME-MoM 1.0: A new integral model of volcanic plumes based on the method of moments

M. de' Michieli Vitturi, A. Neri, and S. Barsotti

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In this paper a new mathematical model of volcanic plume, named Plume-MoM, is presented. The model is based on the method of moments and it is able to describe the continuous variability in the grain size distribution (GSD) of the pyroclastic mixture ejected at the vent, crucial to characterize the source conditions of ash dispersal models. Results show that the GSD at the top of the plume is similar to that at the base and that plume height is weakly affected by the parameters of the GSD.