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11 record(s) found in the location "Dehcho Region" (multi-year projects are grouped):
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Lakes as sentinels of environmental change in discontinuous permafrost peatlands
Principal Investigator: Korosi, Jennifer B
Licensed Year(s): 2024 2023
Summary: This licence has been issued for the scientific research application No.5468. The goal of this project is to understand and predict how lakes in discontinuous permafrost peatlands are changing in response to climate warming and loss of permafrost. The field activities for 2023 will focus on three regions/objectives: Inferring long-term environmental change in the Five Fish Lakes (Lue Túé ...
Licensed Year(s): 2024 2023
Summary: This licence has been issued for the scientific research application No.5468. The goal of this project is to understand and predict how lakes in discontinuous permafrost peatlands are changing in response to climate warming and loss of permafrost. The field activities for 2023 will focus on three regions/objectives: Inferring long-term environmental change in the Five Fish Lakes (Lue Túé ...
Murky waters: Impacts of disturbances on the mobilization and downstream delivery of mercury and methylmercury
Principal Investigator: Olefeldt, David
Licensed Year(s): 2023 2022 2021
Summary: This licence has been issued for the scientific research application No.5448. This project proposes to monitor wetlands, streams, rivers, and lakes in the Dehcho region, with a focus on understanding current and future trends in aquatic mercury and methylmercury. The region has vast stores of mercury accumulated in organic wetland soils, and there is a risk that disturbances such as permafrost ...
Licensed Year(s): 2023 2022 2021
Summary: This licence has been issued for the scientific research application No.5448. This project proposes to monitor wetlands, streams, rivers, and lakes in the Dehcho region, with a focus on understanding current and future trends in aquatic mercury and methylmercury. The region has vast stores of mercury accumulated in organic wetland soils, and there is a risk that disturbances such as permafrost ...
Influence of changing active-layer thickness on permafrost peatland trace gas exchanges and carbon balance
Principal Investigator: Sonnentag, Oliver
Licensed Year(s): 2022 2021 2019 2017 2016 2015 2014 2013 2013
Summary: The project of the present application is the continuation of year-round eddy covariance measurements of carbon, water and energy fluxes at Scotty Creek, established in 2013. The key methodology is tower-mounted micrometeorological measurements around the eddy covariance technique using an open-path infra-red gas analyzer and a sonic anemometer. These measurements are supported by measurements ...
Licensed Year(s): 2022 2021 2019 2017 2016 2015 2014 2013 2013
Summary: The project of the present application is the continuation of year-round eddy covariance measurements of carbon, water and energy fluxes at Scotty Creek, established in 2013. The key methodology is tower-mounted micrometeorological measurements around the eddy covariance technique using an open-path infra-red gas analyzer and a sonic anemometer. These measurements are supported by measurements ...
The frontline of permafrost thaw: a transect of eddy covariance towers across the southern Taiga Plains to better understand changing regional carbon and water budgets
Principal Investigator: Sonnentag, Oliver
Licensed Year(s): 2024 2023 2022 2021 2019 2018 2018 2017 2016 2015
Summary: Through this project the following objectives will be addressed: What is the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system? How do these two types of feedback differ between the sporadic and discontinuous permafrost zones? Is the reported decrease (increase) in net carbon dioxide (methane) exchange based on plot- (<1m2) and ecosystem-scale...
Licensed Year(s): 2024 2023 2022 2021 2019 2018 2018 2017 2016 2015
Summary: Through this project the following objectives will be addressed: What is the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system? How do these two types of feedback differ between the sporadic and discontinuous permafrost zones? Is the reported decrease (increase) in net carbon dioxide (methane) exchange based on plot- (<1m2) and ecosystem-scale...
Impacts of 10 years of climate warming on forests and peatlands in the Dehcho
Principal Investigator: Errington, Ruth
Licensed Year(s): 2018
Summary: After 10 years of warming climate conditions, the Canadian Fire Service is leading a field project to re-measure a series of permanent monitoring plots to identify any changes to the forest stand structure, tree growth rates, plant community composition, tree, shrub, herb, and lichen biomass. These changes will be associated with climate trends and environmental factors such as soil type, presence...
Licensed Year(s): 2018
Summary: After 10 years of warming climate conditions, the Canadian Fire Service is leading a field project to re-measure a series of permanent monitoring plots to identify any changes to the forest stand structure, tree growth rates, plant community composition, tree, shrub, herb, and lichen biomass. These changes will be associated with climate trends and environmental factors such as soil type, presence...
Planning and Collection of Data on Boreal Wildfire Effects: Studies of broad-scale 2014 Wildfires in NWT, Canada
Principal Investigator: Bourgeau-Chavez, Laura L.
Licensed Year(s): 2018 2017 2016 2015
Summary: The goal of this project is to identify and collect remote sensing and field data to support the science necessary to investigate the impacts and consequences of the 2014-15 wildfires in Northwest Territories, Canada and to better understand the vulnerability of the Carbon-rich boreal peatlands to burning. Field crews will navigate to pre-selected sample locations and collect at each location: ...
Licensed Year(s): 2018 2017 2016 2015
Summary: The goal of this project is to identify and collect remote sensing and field data to support the science necessary to investigate the impacts and consequences of the 2014-15 wildfires in Northwest Territories, Canada and to better understand the vulnerability of the Carbon-rich boreal peatlands to burning. Field crews will navigate to pre-selected sample locations and collect at each location: ...
Effects of fire on peatland permafrost stability and carbon cycling
Principal Investigator: Olefeldt, David
Licensed Year(s): 2017 2016 2015
Summary: The project team intend to study carbon cycling in peatland catchments, in order to determine whether the interactions between wildfire and permafrost thaw causes increased release of greenhouse gases from peatlands and aquatic ecosystems to the atmosphere, and thus cause amplified climate change. Given the overall objective of the project, the team intend to address five research questions: ...
Licensed Year(s): 2017 2016 2015
Summary: The project team intend to study carbon cycling in peatland catchments, in order to determine whether the interactions between wildfire and permafrost thaw causes increased release of greenhouse gases from peatlands and aquatic ecosystems to the atmosphere, and thus cause amplified climate change. Given the overall objective of the project, the team intend to address five research questions: ...
Ecohydrologic Impacts of Wildfire on Peatlands
Principal Investigator: Waddington, J.M.
Licensed Year(s): 2010 2009
Summary: To investigate how the amount of peat consumption during wildfire in bogs or fens (muskeg), is affected by weather, fire behaviour, and properties of the tree canopy. Researchers will manually measure various aspects of the peat, such as total peat depth and the proportion of unburned peat present in the area. Peat depth measurements will be made by driving a 2.5cm steel rod into the peat with...
Licensed Year(s): 2010 2009
Summary: To investigate how the amount of peat consumption during wildfire in bogs or fens (muskeg), is affected by weather, fire behaviour, and properties of the tree canopy. Researchers will manually measure various aspects of the peat, such as total peat depth and the proportion of unburned peat present in the area. Peat depth measurements will be made by driving a 2.5cm steel rod into the peat with...
Organic Carbon Accumulation in discontinuously frozen peatlands
Principal Investigator: Robinson, Stephen
Licensed Year(s): 1996 1995
Summary: Research will be conducted in a peatland complex approximately 12 km west of Fort Simpson (4 km west of the Wrigley Road). The major component of the field work will include the collection of peat cores in both frozen and unfrozen terrain to about 1 m depth. A total of approximately 100 cores will be collected. Core holes will be approximately 15 cm wide, and will be filled to minimize terrain ...
Licensed Year(s): 1996 1995
Summary: Research will be conducted in a peatland complex approximately 12 km west of Fort Simpson (4 km west of the Wrigley Road). The major component of the field work will include the collection of peat cores in both frozen and unfrozen terrain to about 1 m depth. A total of approximately 100 cores will be collected. Core holes will be approximately 15 cm wide, and will be filled to minimize terrain ...
Peat Plateau Collapse and Climate Change
Principal Investigator: Wein, Ross
Licensed Year(s): 1992
Summary: The research will examine permafrost-containing peat plateaus that have burned during severe fires to determine the features of subsidence (decrease) and the rate of subsidence....
Licensed Year(s): 1992
Summary: The research will examine permafrost-containing peat plateaus that have burned during severe fires to determine the features of subsidence (decrease) and the rate of subsidence....
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