165 record(s) found with the tag "physical sciences" (multi-year projects are grouped):
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Recovery of boreal caribou habitat after forest fires
Principal Investigator: d'Entremont, Marc
Licenced Year(s): 2018
Summary: In 2015-2016, the Deninu Kue First Nation (DKFN) and LGL (Lewis, Gunn, Livingston) Limited completed a traditional use study on boreal caribou habitat and habitat use that incorporated traditional knowledge and scientific information in the identification of foraging habitat for boreal caribou in the South Slave region of the Northwest Territories (NWT). One outcome of the study was the DKFN elder...


Vegetation Productivity on the Bathurst Caribou Range
Principal Investigator: Danby, Ryan K
Licenced Year(s): 2018
Summary: The two main objectives are: to map changes in vegetation productivity on an annual basis across the Bathurst caribou herd’s range using satellite imagery obtained from NASA’s MODIS sensor (available since 2000) and analyze these data to identify where the most significant changes have occurred; and to collect and analyze data on the growth, establishment, and mortality of shrubs and trees over th...


Short and long term effects of forest fires on the stability of carbon pools in the arctic permafrost and subarctic forests (ARCTICFIRE)
Principal Investigator: Koster, Kajar
Licenced Year(s): 2018 2015
Summary: The aim of this project is to study the short term and long term effects of different fire intensities on the decomposition of soil organic matter (SOM) in northern boreal forests under changing fire regimes. The objectives are to: 1) explore the short and long term effects of forest fires with different intensity on above- and belowground biomasses; 2) explore changes in albedo, snow depths an...


Online Digital Hazard Maps of Landslides Along the Caribou Hills
Principal Investigator: Giff, Garfield
Licenced Year(s): 2018
Summary: The main objective of the project is to develop and disseminate through a geoportal, hazard maps and additional information to support the development and implementation of climate change adaptation strategies for the Caribou Hills. Within the geoportal, spatial and non-spatial information will be available to inform: regulations, the community of the possible danger, vulnerability assessments, th...


Impacts of 10 years of climate warming on forests and peatlands in the Dehcho
Principal Investigator: Errington, Ruth
Licenced 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...


Impacts of climate change on wildfire risk in boreal forests in the Northwest Territories
Principal Investigator: Asselin, Hugo
Licenced Year(s): 2018
Summary: The three main objectives of this research are: 1) to reconstruct the multi-century history of wildfire and vegetation in the Northwest Territories by analyzing charcoal contained in lake sediments; 2) to establish the links between recent fire activity and climatic data by studying tree growth rings (annual resolution); and, 3) to combine this scientific knowledge to indigenous knowledge obtained...


The effect of permafrost slumping on carbon delivery from land to water
Principal Investigator: Tank, Suzanne E
Licenced Year(s): 2018 2017 2016 2015 2014
Summary: The objective of this study is to understand how permafrost slumping increases the mobilization of carbon from land to water, and the effects of this transport on stream communities and the global carbon cycle. This summer, the research team will measure streamwater chemistry upstream and downstream of slump sites. The team will also examine the fate of this carbon by undertaking incubation experi...


Impact of climate change on catchment biogeochemistry in plains and shield regions
Principal Investigator: Olefeldt, David
Licenced Year(s): 2018
Summary: 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 magnitude of methane emission from ponds along climate gradients within both the Taiga...


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
Licenced Year(s): 2018 2018 2017 2016 2015 2014 2013
Summary: Through this project the research team will address the following objectives: 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 eco...


Remote Sensing and Geophysics of Tundra Landscapes
Principal Investigator: Ullmann, Tobias
Licenced Year(s): 2018
Summary: The proposed project will investigate the possibility of linking field-measured characteristics of tundra landscapes (e.g., active layer thickness, soil moisture, plant distribution and ecosystem composition, etc.) with remotely-sensed data. The overall objective of the project is to identify the connections that exist between observable surface properties and their associated subsurface/permafros...


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