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SUMMARY:Land-atmosphere interactions: what models do and don't tell us - P
 rof Rob MacKenzie (University of Birmingham) - Director\, Birmingham Insti
 tute of Forest Research
DTSTART:20140120T141500Z
DTEND:20140120T153000Z
UID:TALK49277@talks.cam.ac.uk
CONTACT:Dr Amanda Maycock
DESCRIPTION:The land surface can affect air pollutants in at least five wa
 ys:\n\n1.       Trapping emissions to the atmosphere within a canopy (fumi
 gation)\n\n2.       Producing swirls and eddies in the air that mix pollut
 ants away from the ground (vertical mixing)\n\n3.       Slowing the horizo
 ntal wind and so reducing the rate of movement of pollutants away from a s
 ource (horizontal dilution)\n\n4.       Transfer of pollutants from the ai
 r to the surface (deposition)\n\n5.       Emitting volatile organic compou
 nds (VOCs) that form ozone\n\nThe talk will discuss touch on each of the a
 bove effects\, showing model results that illustrate when each effect can 
 become dominant\, when more than one effect operates to produce surprising
  results\, and when limitations in our approaches to land-atmosphere inter
 actions leaves us unable to address key questions. The talk will include a
  brief introduction to the newly formed Birmingham Institute of Forest Res
 earch\, which aims to improve our understanding of forest dynamics\, inclu
 ding interactions between forest and overlying air.\n
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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