Abstract:
In boreal peatland complexes near the southern limit of permafrost in northwestern Canada, warming has driven the collapse of black spruce–dominated permafrost peat plateaus and the expansion of saturated thermokarst wetlands. A decade of flux tower measurements at Scotty Creek shows that the rapidly changing landscape is approximately carbon neutral, with spatial and temporal wet–dry variability controlling whether the system acts as a CO₂ sink or source. Following a 2022 wildfire that burned plateaus but spared wetlands, early post-fire results suggest no immediate shift in net atmospheric carbon and water fluxes, though wildfire-accelerated thaw and altered hydrological connectivity may ultimately reshape the landscape’s carbon sink–source dynamics.
What is the Joint Oslo Seminar (JOS):
- Atmospheric and climate sciences have a stronghold in Oslo among the four institutions University of Oslo, the Meteorological Institute, CICERO and NILU.
- This joint seminar invites renowned international experts to contribute to an informal series of lectures, meant to create interaction with the Oslo atmospheric and climate science community on recent highlights and analysis in the field.
- Normally seminars will be held on Thursdays (12:15 pm -1pm).