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SUMMARY:Ice cores and aerosols: Past atmospheric chemistry from new genera
 tion\, continuous ice core analyses - Dr. Joe McConnell\, Desert Research 
 Institute
DTSTART:20191028T140000Z
DTEND:20191028T150000Z
UID:TALK133864@talks.cam.ac.uk
CONTACT:76948
DESCRIPTION:Aerosols from sea spray\, windblown dust\, biomass burning\, v
 olcanism\, and industrial activities impact biogeochemical cycles and clim
 ate forcing. With their short lifetimes in the atmosphere\, aerosol concen
 trations and deposition in the Polar Regions are dominated by regional (ra
 ther than global) sources\, with long-range transport often implicit\, res
 ulting in large intra- and inter-annual variability in aerosol deposition.
  Arrays of high-time-resolution records with a broad range of analytes are
  required to document and understand past changes in aerosol concentration
 s\, sources\, and variability while providing adequate information for eva
 luating global circulation\, snowpack radiation\, and other models.\n\nAft
 er briefly describing the state-of-the-art technology that makes possible 
 efficient\, very high-depth-resolution analyses of ice cores\, we present 
 and discuss recent findings from measurements of a broad range of aerosols
  and related source tracers in a developing array of ice cores from around
  the Arctic and Antarctic.
LOCATION:Pfizer Lecture Theatre\, Department of Chemistry
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