244 dossier(s) trouvé(s) portant l’étiquette "permafrost" (les projets pluriannuels sont regroupés):
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Influence of Permafrost Continuity on Groundwater Flow and Carbon Fate and Transport
chercheur principal: Rudolph, David
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No. 5617. Within the Central Mackenzie Valley of the Northwest Territories (NWT), discontinuity and rapid change within the regional permafrost is anticipated to be influencing landscape, hydrology, habitat and ecosystem characteristics along with presenting challenges for the stability of constructed infrastructure. Mapping t...


Impact of wildfire and forest management on permafrost and post-fire regeneration
chercheur principal: Baltzer, Jennifer L
Année(s) de permis: 2024 2023 2022 2021 2020 2019
Résumé: This licence has been issued for the scientific research application No.5543. This projects two main objectives are to monitor the recovery of NWT forests following wildfire to better understand post-fire changes on forest composition and ground vegetation and to develop baseline information about proposed forest management areas to support assessment of harvesting impacts on these areas. T...


Investigations of coastal ice exposures as analogues to ice-exposing scarps on Mars
chercheur principal: Koutnik, Michelle
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No.5390. The research team propose investigating icy Arctic scarps as analogues for ice-exposing scarps on Mars. Scarp-side exposures of massive tabular ice, overlain by a polygonized overburden dotted with thermokarstic depressions, occur in the continuous and extremely deep permafrost of the Tuktoyaktuk Coastlands in the Can...


Studies of greenhouse gas release and environmental processes associated with thawing permafrost in the Inuvialuit Settlement Region
chercheur principal: Morse, Peter D
Année(s) de permis: 2023 2022 2021
Résumé: This licence has been issued for the scientific research application No.5500. The goals of this multi-year-long project are to assess greenhouse gas (methane and carbon dioxide) release from warming permafrost and tundra lakes in the Inuvialuit Settlement Region (ISR) and to study associated carbon dynamics and microbiological processes, including the release of mercury to the environment. ...


Snow compaction and permafrost monitoring
chercheur principal: Wilson, Alice
Année(s) de permis: 2023 2022 2021 2020
Résumé: This licence has been issued for the scientific research application No.5475. The primary objective of this research is to determine the influence of snow manipulation on permafrost temperatures in different environments along the Inuvik to Tuktoyaktuk Highway (ITH). A secondary objective is to better understand the relationship between snow cover and ground surface temperatures in both natural...


Invertebrate paleoecology of the Mackenzie River uplands region
chercheur principal: Medeiros, Andrew
Année(s) de permis: 2023 2022
Résumé: This licence has been issued for the scientific research application No.5455. To examine the effects of flooding and permafrost changes on the ecological function and structure of differing lakes in the Mackenzie River uplands region. The research team will drive to sites along the Inuvik-Tuktoyaktuk Highway to collect 1 litre water samples from a small boat. The research team will be using...


Murky waters: Impacts of disturbances on the mobilization and downstream delivery of mercury and methylmercury
chercheur principal: Olefeldt, David
Année(s) de permis: 2023 2022 2021
Résumé: 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 ...


Permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT
chercheur principal: Smith, Sharon S
Année(s) de permis: 2023 2022 2021 2020 2019
Résumé: This licence has been issued for the scientific research application No.5419. This project continues the on-going monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT. This phase of the project is largely data collection. Objectives are to provide baseline knowledge of permafrost and terrain conditions (specifically ground temperature and active la...


Characterization of recent permafrost landslides and ground ice distribution in the central Mackenzie Valley, NWT
chercheur principal: Froese, Duane G
Année(s) de permis: 2023 2022 2021
Résumé: This licence has been issued for the scientific research application No.5423. This work builds on studies over the last several years, including field work in the Mackenzie River valley in 2018 and 2019. The objective of 2021 fieldwork is twofold: 1) characterizing a large suite of retrogressive thaw slumps and thaw-induced landslides in the Redstone, Keele, and Johnson River basins that have i...


Carbon sequestration in boreal forests during regeneration process after forest fire disturbances.
chercheur principal: Matsuura, Yojiro
Année(s) de permis: 2022
Résumé: This licence has been issued for the scientific research application No.5340. Main objective of the project is to re-start and maintain study sites after two growing season without any census and sample collections. The research team will also establish additional study sites for regeneration process and soil condition monitoring (detection of permafrost table depth). The team will try again to...


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