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SUMMARY:The small and mighty: the role of microbes and minerals in melting
  the Greenland Ice Sheet - Prof Liane Benning (GFZ)
DTSTART:20210408T140000Z
DTEND:20210408T150000Z
UID:TALK154513@talks.cam.ac.uk
CONTACT:Oliver Shorttle
DESCRIPTION:The rapid melting of the Greenland Ice Sheet and the associate
 d sea level rise is controlled by changes in albedo\, which is primarily a
  consequence of increased light absorbing particulates (LAP) on snow and i
 ce surfaces. Among LAPs\, and included in climate models is black carbon. 
 However\, other LAPs so far not included in climate models because their r
 ole is poorly quantified\, are mineral dust and pigmented glacier algae. W
 e will show pigmented algae can reduce albedo by up to ~ 20 %\, and that a
  necessary interplay between geochemical\, mineralogical and microbiologic
 al parameters helps trigger the annual mineral-nutrient fuelled glacial al
 gal blooms. We ground truth and link surface\, airborne and satellite data
  and determine the role and consequences of water-mineral-microbe interfac
 e reactions in shaping large-scale processes across the Greenland Ice Shee
 t.\n\n
LOCATION:https://zoom.us/j/93371061442
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