
Every year, numerous wildfires ravage through the Northwest Territories with far-reaching ecological and socio-economic consequences. Climate warming and thus drier conditions are projected to intensify wildfire activity across the Northwest Territories including rapidly thawing boreal peatland complexes near the southern limit of permafrost (permanently frozen ground). Wildfire activity was shown to accelerate thaw of forested permafrost peat plateaus and the development of thermokarst features (e.g., permafrost-free wetlands). Collectively, these changes affect ecosystem function including the net exchanges of energy and matter with the atmosphere. A decade of “nested” eddy covariance measurements of carbon, water and energy fluxes at Scotty Creek near Fort Simpson, NT has shown that thermokarst wetland expansion leads to increased methane emissions but only marginally affects net ecosystem carbon dioxide exchange. In October 2022, a late-season wildfire destroyed the flux measurement infrastructure at Scotty Creek. Driven by the collective desire to understand the interactions among permafrost thaw, wildfire activity, and carbon, water and energy fluxes, the flux measurement infrastructure was rebuilt in March 2023 with the support from different scientific communities and the Liidlii Kue First Nation (“Scotty Creek 2.0”). In this presentation I will summarize key findings from a decade of flux research at Scotty Creek, and present initial results from Scotty Creek 2.0. complemented by repeated high-resolution drone imagery and deep learning. I will also discuss ongoing efforts in science communication including a semi-journalistic graphic novel telling the story of Scotty Creek 2.0 since “In the midst of every crisis lies great opportunity” (Alber Einstein).
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Canada