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SUMMARY:EESS Seminar talk on "Blowing snow particles interaction with froz
 en hydrometeors in alpine regions"
DTSTART:20261027T121500
DTEND:20261027T131500
DTSTAMP:20261017T091943Z
UID:2b03b50ff430931a98621a99e3f7bd2b5bba8d11f905d189d8f7abc2
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Samuele Viaro\, EPFL\nAbstract:\n\n\nAtmospheric models ar
 e known to fail in reproducing the large gap that exists between measured 
 ice nucleating particles and Ice Crystal Number Concentrations (ICNC) in a
 lpine regions. Improvements have been made by including different sources 
 of secondary ice production mechanisms into the models. Blowing snow has b
 een identified as an additional source of ice particles\, potentially play
 ing a crucial role in secondary ice production and cloud microphysics. Dri
 ven by these assumptions\, we performed an set of simulations using the sn
 ow-atmosphere coupled model CRYOWRF. First\, comparison with observed data
  confirmed the positive contribution of secondary ice production and revea
 led the importance of blowing snow particles. Second\, the added collision
 s between blowing snow particles and other frozen hydrometeors (cloud ice\
 , snow\, and graupel) show a significant generation of cloud ice particles
 . However\, the net relative increase in total ICNC remains marginal as th
 e overall sum is dominated by the abundant blowing snow particles. This wo
 rk strenghtens the importance of blowing snow in alpine regions\, and is t
 he starting point to investigate its influence on precipitation and snow r
 edistribution.\n \n\n\nBiography:\n\n\n\nMy research spans fluid mechanic
 s\, applied mathematics\, and environmental physics. After earning a maste
 r degree in Energy Engineering from Politecnico di Milano\, I completed a 
 9-month research stay at the von Karman Institute for Fluid Dynamics\, inv
 estigating turbulent wakes using particle image velocimetry. I hold a PhD 
 in Applied Mathematics focused on boundary layer instability theory\, foll
 owed by a postdoc in industrial optimization where I developed optimal and
  heuristic models. Currently\, I am a postdoctoral researcher at CRYOS\, u
 sing numerical models to investigate blowing snow processes in alpine and 
 polar environments\n\n
LOCATION:ALP 1 107 https://plan.epfl.ch/?room==ALP%201%20107 https://epfl.
 zoom.us/j/69011077410
STATUS:CONFIRMED
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