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BEGIN:VEVENT
DTSTAMP:20210916T132449Z
LOCATION:Louis Favre
DTSTART;TZID=Europe/Stockholm:20210706T140000
DTEND;TZID=Europe/Stockholm:20210706T143000
UID:submissions.pasc-conference.org_PASC21_sess125_msa224@linklings.com
SUMMARY:Volcanic Ash: Coupling Three-Dimensional Multiphase Plume Simulati
 ons with Ash Dispersion Models
DESCRIPTION:Minisymposium\n\nVolcanic Ash: Coupling Three-Dimensional Mult
 iphase Plume Simulations with Ash Dispersion Models\n\nCerminara, Pardini,
  Folch, Mingari\n\nDuring an explosive volcanic eruption, a volcanic plume
  is injected into the atmosphere. It is a compressible, turbulent, hot mul
 tiphase mixture of volcanic gases and solid particles, the fragmented magm
 a. It forms umbrella clouds spreading downwind for hundreds to thousands o
 f kilometers. Volcanic ash clouds pose significant hazards to aviation. Si
 nce the Eyjafjallajökull eruption in April/May 2010, which paralysed 
 European aircraft activity, significant efforts have gone into improving q
 uantitative dispersion model forecasts of ash concentration. ASHEE-2.0 is 
 a transient 3D Eulerian-Lagrangian model for volcanic mixtures, it solves 
 the multiphase Navier-Stokes equations from the crater to the spreading of
  the umbrella cloud, at the scale of the plume column itself (hundreds of 
 kilometres). FALL3D-8.0 is a 3D time-dependent Eulerian model for atmosphe
 ric transport and deposition based on the advection–diffusion–
 sedimentation equation. Both models have benefit from being two of the Eur
 opean Exascale flagship codes in the ChEESE Center of Excellence (https://
 cheese-coe.eu). The data produced by the ASHEE code (at the plume scale) f
 or all the ash phases have been processed to be used as inputs for the FAL
 L3D model (at the scale of all the umbrella cloud). We aim to increase the
  accuracy of the vertical profiles presently used as inputs by ash dispers
 ion models.\n\nDomain: CS and Math, Solid Earth Dynamics
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