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  • Presentation | B43E: Spatial Fingerprints of Climate Extremes: Impacts on Ecosystem Processes, Vegetation Function, and Biodiversity II Oral
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  • B43E-01: Assessing the impact of extreme weather events on carbon fluxes in Arctic and Boreal ecosystems
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Author(s):
Claire Bachand, University of Alaska Fairbanks (First Author, Presenting Author)
Eugenie Euskirchen, University of Alaska Fairbanks
Isabel Wargowsky, Woodwell Climate Research Center
Anna-Maria Virkkala, Woodwell Climate Research Center
Katrina Bennett, Los Alamos National Lab


Extreme weather events are becoming more common in arctic and boreal regions. The soils and permafrost in these high-latitude regions contain one-third of the global soil carbon pool. Thus, understanding how extreme weather events (e.g., extreme heat, heavy precipitation) impact high-latitude CO2 fluxes is crucial to understanding if these regions will act as a sink or a source of carbon as extreme events become more frequent. Here, we present a comparison between in-situ carbon flux measurements from an Arctic-Boreal Carbon Flux dataset, ABCFlux v2, and inventoried extreme climatic events. Through a combination of correlation analysis and random forest modeling, we aim to understand how seasonal and annual CO2 fluxes respond to extreme weather events, and how these responses vary between 1) boreal and tundra sites, and 2) permafrost and non-permafrost soils.



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