165 record(s) found with the tag "physical sciences" (multi-year projects are grouped):
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Characterization of permafrost cores from the Inuvik-Tuktoyaktuk Corridor, NWT, Canada
Principal Investigator: Alvarez, Alejandro
Licensed Year(s): 2020
Summary: This licence has been issued for the scientific research application No.4610. The objectives of this study are to: 1) evaluate the geologic setting including geochemistry, and radiocarbon ages to establish a regional history of the area; 2) investigate the geologic setting of multiple buried ice bodies; and 3) develop a geologic map along the southern Inuvik-Tuktoyaktuk Highway (ITH) highlighti...


Whati Permafrost Vulnerability Mapping
Principal Investigator: Bonnaventure , Philip P.
Licensed Year(s): 2020 2019
Summary: This licence has been issued for the scientific research application No.4631. The goal of this project is to create a permafrost hazard/vulnerability map of the community of Whati, NT. In addition to the general map, ideal location(s) for future graveyard and residential development will be identified. The three main deliverables outlined in conversations with representatives from Whati ar...


Mechanical and thermal design of embankments built on permafrost
Principal Investigator: Doré, Guy
Licensed Year(s): 2019
Summary: This licence has been issued for the scientific research application No.4562. The main objective is to develop a practical method for the mechanical and thermal design of embankments built on permafrost based on the properties of the active layer and of the permafrost as well as the loading conditions. The development of decision-making tools to select the optimal course and the optimal embankm...


Using the past to inform the future: A paleoecological perspective of the impacts of drought and fire on lakes, permafrost and forests
Principal Investigator: Pisaric, Michael FJ
Licensed Year(s): 2019 2018 2017 2016
Summary: This licence has been issued for the scientific research application No.4564. The objectives of this research are to examine the frequency and severity of past wildfire and drought (drought-like) conditions in the southern Northwest Territories. Specifically, the research team will examine the following questions: 1) how frequent and severe have fires been in the; 2) are fires becoming more fre...


Transitioning of permafrost to wetland and implications for biomass gains and losses
Principal Investigator: Chasmer, Laura E
Licensed Year(s): 2019
Summary: This licence has been issued for the scientific research application No.4527. The objectives are to: 1) Compare the distribution of tree and shrub biomass within accessible areas in the Taiga Shield and Taiga Plains landscapes using lidar remote sensing, and by developing tree and shrub vegetation biomass models from field data; 2) Characterize and compare non fire-disturbed patterns of veget...


ABoVE Permafrost Dynamics Observatory
Principal Investigator: Miller, Charles E
Licensed Year(s): 2019
Summary: The objective of this project is to collect physical and geophysical measurements quantifying permafrost susceptibility to ABoVE's internationally-available dataset. Researchers can access these data to bolster understanding of environmental processes and the ability to remotely-sense these on a regional scale. Airborne remote sensing missions from August 2017, 2018, and August of 2019 by NASA'...


Self-stabilization of thaw slumps
Principal Investigator: Doré, Guy
Licensed Year(s): 2019
Summary: The research team are studying the natural stabilization of thaw slumps in the aim to eventually develop adapted management strategies for infrastructure at risk. The specific objectives are to assess the variations of thaw slump stabilization across landscapes, regions, and climates; and to assess the positive and negative feedback effects controlling the natural stabilization of thaw slumps....


Impacts of wildfire and forest management on permafrost conditions and post-fire regeneration
Principal Investigator: Baltzer, Jennifer L
Licensed Year(s): 2019
Summary: The primary objective is to better understand the impact of disturbance on forest regeneration in the NWT. To this end, the team aim to evaluate the direct impacts of both forest harvesting and wildfire on tree regeneration the interaction of these two disturbances with permafrost thaw. The research team will establish new monitoring sites in the proposed Forest Management Areas and adjacent un...


The effect of permafrost slumping on carbon delivery from land to water
Principal Investigator: Tank, Suzanne E
Licensed Year(s): 2019 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 ecosystems and the global carbon cycle. This summer, the research team will measure streamwater chemistry at a series of sites draining from the Peel Plateau, near where they enter the Mackenzie Delta. At one site (Stony Creek), t...


From Archaea to the Atmosphere: Integrating Microbial, Isotopic and Landscape-Scale Observations to Quantify Methane Emissions from Global High-Latitude Ecosystems
Principal Investigator: Varner, Ruth K
Licensed Year(s): 2019
Summary: The aim of this project is to combine remote sensing data, field measurements and biogeochemical modeling to improve methane emissions estimates from thawing permafrost peatland landscapes at local, regional and global scales. To accomplish this, the research team will integrate data on water table and vegetation from remote sensing (satellites, unmanned aerial vehicle (UAVs)), with local measurem...


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