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SUMMARY:Disentangling polar biogeochemistry using multidisciplinary approa
 ches  - Kate Hendry\, British Antarctic Survey
DTSTART:20220323T140000Z
DTEND:20220323T150000Z
UID:TALK170639@talks.cam.ac.uk
CONTACT:Dr. Shenjie Zhou
DESCRIPTION:The polar regions are home to important and dynamic components
  of nutrient cycles\, from subglacial weathering to biological production 
 and carbon sequestration in marine sediments. The Arctic\, parts of the An
 tarctic\, and glaciated mountain ranges (the ‘third pole’) are also so
 me of the most climatically sensitive locations on Earth\, where the most 
 dramatic warming and associated physical and chemical changes have been ob
 served in recent decades. If we are to comprehend the implications of anth
 ropogenic climate change for future oceans\, we need to examine how such r
 apid change in the polar regions could be either amplified or mitigated by
  biogeochemical feedback mechanisms. Here\, I will explore the cycling of 
 one key nutrient\, silicon (Si)\, in the subarctic and Chilean Patagonia\,
  using a range of physical\, chemical and biological approaches to answer 
 the questions: What are the mechanisms behind Si release in glacier system
 s? What are the downstream processes influencing the delivery of Si to the
  oceans? And how do we explore rates of Si flux to the open ocean? 
LOCATION:https://ukri.zoom.us/j/96825239086\; BAS seminar room 1
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