33 record(s) found in the location "Dehcho Region" (multi-year projects are grouped):
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Impacts of climate change on fire fuels in wetlands and forested areas
Principal Investigator: Chasmer, Laura E
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No. 5614. The objectives for this research licence are to compare the fuel characteristics within accessible areas in the Fort Simpson area to collected lidar remote sensing, to develop an ecozone specific fire fuel model; to determine how fire fuels have changed within northern latitudes over time and compare them to the chan...


Permafrost and ground hazard mapping between Norman Wells and Wrigley along the Mackenzie Valley winter road using airborne geophysics
Principal Investigator: Froese, Duane G
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No. 5160. The research team will use airborne geophysics (helicopter-based surveys) flying the central Mackenzie Valley corridor along the existing winter road to map permafrost across different landforms and terrain types. The objectives of this study are to: 1) Fly multiple lines of airborne electromagnetic geophysical data ...


NWT Streams and Rivers of the future: How permafrost thaw and groundwater activation are changing water resources (CIMP226)
Principal Investigator: Wright, Stephanie
Licensed Year(s): 2024 2023 2022
Summary: This licence has been issued for the scientific research application No.5522. The purpose of this study has four objectives: 1) Assess the spatial and temporal patterns of hydrologic change (groundwater and surface water) in the La Martre River and Trout River catchments (O1); 2) Identify the drivers, processes, and feedbacks responsible for the hydrologic changes identified in O1 and how they ...


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 ...


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: This licence has been issued for the scientific research application No.5221. The project 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 anemome...


Permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT
Principal Investigator: Smith, Sharon S
Licensed Year(s): 2023 2022 2021 2020 2019
Summary: This licence has been issued for the scientific research application No.5181. The combined temperature and active layer monitoring network extends from Fort Simpson to the Arctic Coast. With monitoring instrumentation already in place through work under previous licenses, the main work of this phase will be data collection. While different parts of the network can be visited at different times ...


Impact of climate change on catchment biogeochemistry in plains and shield regions
Principal Investigator: Olefeldt, David
Licensed Year(s): 2021 2019 2018
Summary: This licence has been issued for the scientific research application No.4734. The objective of this research is to identify impacts of climate change and permafrost thaw on pond methane emissions, and on water chemistry in streams that drain peatland-rich catchments. Impacts on methane emissions will be assessed. Specific objectives are: 1) to characterize the trends and variability in magn...


Dehcho Indigenous Community Based Climate Change Monitoring
Principal Investigator: Low, Mike
Licensed Year(s): 2021
Summary: This licence has been issued for the scientific research application No.4812. The objective of this project is to increase collection of climate change indicators, while also training Dehcho Guardians to collect the same data independently in the future. This information in addition to the collection of traditional knowledge will show changes to the environment and the data can be used to prote...


Long-term aquatic ecosystem change at the southern limit of permafrost
Principal Investigator: Korosi, Jennifer B
Licensed Year(s): 2019 2018
Summary: The goal is to reconstruct long-term environmental change (hundreds to thousands of years) by examining chemical and biological fossil remains preserved in lake sediment cores, in order to better understand how thawing permafrost impacts lake ecosystems. 1) Water chemistry and plankton survey The research team will collect lake water samples from the study lakes to analyze for water chemistry...


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...


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