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UID:20250812T064816EDT-38315WhgPT@132.216.98.100
DTSTAMP:20250812T104816Z
DESCRIPTION:Dr Manuel Chevalier\, Researcher at the Institute for Geoscienc
 es\, Department of Meteorology\, University of Bonn\, Germany.\n\nHarnessi
 ng proxy data uncertainties to improve climate reconstructions in the trop
 ics\n\nMardi 2 avril 2024 à 12h30 - Tuesday\, April\, 2024 at 12:30 pm\n\n
 Local PK-7605\, 7e étage\, 201 ave. du Président-Kennedy\n\nZoom: https://
 uqam.zoom.us/j/83216327466?pwd=WnZJNldCaS8xL1M4VDdadUVENHQ1dz09\n\nRésumé 
 / abstract:\n\nPollen-based quantitative climate reconstructions are funda
 mental to better understanding past environmental changes across various s
 patial and temporal scales and evaluating climate simulations. However\, t
 hese currently mainly exist in extratropical North America and Eurasia\, a
 nd very few quantifications exist in the tropics\, where sparse pollen rec
 ord networks and limitations in existing reconstruction techniques hinder 
 performing comprehensive large-scale reconstructions. My work addresses th
 is global data imbalance by focusing on the tropics. Having developed a no
 vel statistical approach – the CREST (Climate REconstruction SofTware) met
 hod – that circumvents the main issues of the most-used techniques\, I see
 k to analyse and integrate extensive networks of tropical pollen records\,
  characterise regional spatiotemporal modes of climate variability\, and u
 nveil the main drivers of tropical climate changes at the millennial to or
 bital timescales. In this presentation\, I will showcase the approach with
  a multivariate reconstruction using a 270\,000-year-long\, high-resolutio
 n pollen record from Laguna Fùquene in Colombia.\n
DTSTART:20240402T163000Z
DTEND:20240402T173000Z
SUMMARY:Geotop Seminar Series: Dr Manuel Chevalier 
URL:/eps/channels/event/geotop-seminar-series-dr-manue
 l-chevalier-356150
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