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UID:1a9d58ab-d9f4-4822-a813-c525a46f675f@nexttoyou
DTSTAMP:20261106T175627Z
DTSTART:20261111T203500Z
DTEND:20261111T212500Z
SUMMARY:EAS Seminar: Fangqun Yu (UAlbany)
LOCATION:Snee Hall 2146
DESCRIPTION:From Contrail Mitigation to Climate Intervention: Insights fro
 m Advanced Particle Microphysics\n\nContrail mitigation and climate inter
 vention are two separate but related emerging challenges our society face
 s. Aviation accounts for ~ 3.5% of anthropogenic climate forcing (with ro
 ughly two-thirds driven by non-CO2 effects\, predominantly contrail cirru
 s)\, and aviation industry is actively seeking methods for contrail mitig
 ation as air traffic is projected to increase by a factor of ~3.8 from 20
 18 to 2050. Concurrently\, climate intervention via solar radiation modif
 ication—particularly stratospheric aerosol injection (SAI)—is being inves
 tigated as a potential approach to temporarily reduce global warming and 
 associated risks while net-zero emissions and carbon dioxide removal tech
 nologies are scaled up.\n\nThis seminar showcases how advanced particle m
 icrophysics provide important insights into both challenges. It highlight
 s the critical role of volatile particles formed on jet-engine chemi-ions
  in contrail mitigation (especially for modern lean-burn engines) and amb
 ient ions from cosmic ray ionization in mediating new particle formation 
 for potential SO2 and H2S SAI strategies. Interestingly\, active field me
 asurements in aircraft plumes driven by contrail mitigation efforts can b
 e used to inform and constrain SAI research\, which currently lacks robus
 t in-situ data. Furthermore\, global simulations incorporating size-resol
 ved advanced particle microphysics indicate radiative efficac\n\nhttp://n
 ext-to-u.app/events/1a9d58ab-d9f4-4822-a813-c525a46f675f
URL:http://next-to-u.app/events/1a9d58ab-d9f4-4822-a813-c525a46f675f
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