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Authors: de' Michieli Vitturi, Mattia* 
Tarquini, Simone* 
Title: MrLavaLoba: A new probabilistic model for the simulation of lava flows as a settling process
Issue Date: 2018
Series/Report no.: /349 (2018)
DOI: 10.1016/j.jvolgeores.2017.11.016
Abstract: A new code to simulate lava flow spread, MrLavaLoba, is presented. In the code, erupted lava is itemized in parcels having an elliptical shape and prescribed volume. New parcels bud from existing ones according to a probabilistic law influenced by the local steepest slope direction and by tunable input settings. MrLavaLoba must be accounted among the probabilistic codes for the simulation of lava flows, because it is not intended to mimic the actual process of flowing or to provide directly the progression with time of the flow field, but rather to guess the most probable inundated area and final thickness of the lava deposit. The code's flexibility allows it to produce variable lava flow spread and emplacement according to different dynamics (e.g. pahoehoe or channelized-‘a‘ā). For a given scenario, it is shown that model outputs converge, in probabilistic terms, towards a single solution. The code is applied to real cases in Hawaii and Mt. Etna, and the obtained maps are shown.
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