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UID:0-679@blogs.hrz.tu-freiberg.de
DTSTART;TZID=Europe/Berlin:20250701T170000
DTEND;TZID=Europe/Berlin:20250701T183000
DTSTAMP:20250619T084622Z
URL:https://blogs.hrz.tu-freiberg.de/fachgruppe-geooekologie/events/zewaf-
 groundwater-on-ice-hydrogeology-and-the-fate-of-permafrost-carbon-in-arcti
 c-watersheds/
SUMMARY:ZeWaF: “Groundwater on ice: hydrogeology and the fate of permafro
 st carbon in Arctic watersheds”
DESCRIPTION:Das Zentrum für Wasserforschung Freiberg ZeWaF lädt ein zum V
 ortrag von Prof. Dr. Bayani Cardenas\, dem Birdsall-Dreiss-Lecturer 2025.\
 n\nWeitere Infos gibt es auf https://tu-freiberg.de/zewaf/birdsall-dreiss-
 lecture\nAbstract:\nThe rapid warming of the Arctic where permafrost is pr
 evalent is threatening to release carbon which would accelerate global war
 ming if it reaches the atmosphere. There are many unknowns regarding carbo
 n cycling and budgets in Arctic watersheds. This presentation shows that a
 ctive layer soil above permafrost functions as a thin but extensive unconf
 ined aquifer made up of mostly of peat. The supra-permafrost aquifer has r
 elatively high porosity and permeability\, creating efficient subsurface f
 low paths above otherwise impermeable permafrost. Observations and modelin
 g reveal that much of the water and carbon going through Imnavait Creek\, 
 a headwater river in the North Slope of Alaska\, has passed through the su
 pra-permafrost aquifer. Remote sensing showed that supra-permafrost ground
 water is prevalent during summer while extensive sampling showed that ther
 e is substantial carbon within the supra-permafrost aquifers\, as much as 
 those estimated for permafrost. The crucial task of predicting the fate of
  carbon in Arctic watersheds depends on knowing the subsurface flow proper
 ties and processes.
CATEGORIES:Vortrag
LOCATION:Seminarraum 1 UBH (UBH-0208)\, Winklerstraße 3\, Freiberg\, Deuts
 chland
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 \, Deutschland;X-APPLE-RADIUS=100;X-TITLE=Seminarraum 1 UBH (UBH-0208):geo
 :0,0
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DTSTART:20250330T030000
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