Validating gas dispersion modelling at La Solfatara (Campi Flegrei, South Italy)

Probabilistic hazard assessments of volcanic gases need to account
for the natural variability associated to aspects such as weather conditions, source
location, emission rate, and gas species. In order to quantitatively carry out these
assessments, computational tools for gas dispersal need to be validated to demon-
strate the reliability of the model results. Here we provide an exemplificative gas
dispersal model validation at La Solfatara (a maar crater within Campi Flegrei
caldera) which hosts one of the largest and hazardous fumarolic sites of the world,
by using a workflow designed for automating the simulation strategy for probabilis-
tic gas hazard assessments. This represents the first fundamental step towards gas
hazard quantification in the area.