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SUMMARY:Studies towards Assessing the Effects of Aviation on Climate and A
 ir Quality - Dr Arezoo Khodayari\, University of Illinois at Urbana Champa
 ign (UIUC)
DTSTART:20150805T140000Z
DTEND:20150805T150000Z
UID:TALK60300@talks.cam.ac.uk
CONTACT:Dr Marcus Koehler
DESCRIPTION:The projected increase in global air traffic raises concerns a
 bout the potential impact aviation emissions have on climate and air quali
 ty. Aviation emissions modify the chemical and physical properties of the 
 atmosphere in a variety of ways. Aviation contributed roughly 5% of the to
 tal human-related radiative forcing (RF) on climate for the year 2005 (if 
 one assumes the RF from different emissions is additive\, which it really 
 isn’t). Overall\, the effects of aviation emissions on climate remain po
 orly understood. In this research\, various aspects of aviation effects on
  climate and air quality are explored with resulting significant improveme
 nts of understanding in some key areas. \nThree-Dimensional Chemical-Clima
 te Models (CCMs)\, namely CAM5-Chem\, the atmospheric components of the Co
 mmunity Earth System Model (CESM) were used to calculate the aviation-indu
 ced current day and future climate and air quality impacts. Aviation curre
 nt emissions data were obtained from Federal Aviation Administration (FAA)
  and future emissions data were obtained from other FAA supported analyses
  that consider the demand forecast for aviation in development of future s
 cenarios. In our studies\, we have evaluated the aviation-induced effects 
 on climate using the concept of radiative forcing. Remaining uncertainties
  are also calculated and evaluated. Moreover\, special analyses were done 
 to examine specific sources of uncertainty. In addition\, the impacts of a
 viation emissions occurring outside of airports (e.g.\, in flight outside 
 the boundary layer) on the surface air quality are also calculated and dis
 cussed.
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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