31 dossier(s) trouvé(s) portant l’étiquette "active layer" (les projets pluriannuels sont regroupés):
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Permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT
chercheur principal: Smith, Sharon S
Année(s) de permis: 2024
Résumé: This licence has been issued for the scientific research application No. 5776. This project continues the on-going monitoring program of the same title (Licence # 17182) Permafrost 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 ...


North Slave Permafrost Study: Characterization and Predicting Discontinuous Permafrost for Climate Change Adaptation
chercheur principal: Wolfe, Stephen A
Année(s) de permis: 2024 2023 2022 2021 2020
Résumé: This licence has been issued for the scientific research application No. 5775. This activity describes and predicts the occurrence of discontinuous permafrost in the northern Great Slave Lake region to assist in planning, development and maintenance of community and industry infrastructure. Changes in climate are affecting permafrost distribution, temperatures and geotechnical conditions. Diffe...


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...


Measuring surface displacement using winter SAR
chercheur principal: Rabus, Bernhard
Année(s) de permis: 2023 2022
Résumé: This licence has been issued for the scientific research application No.5270. The objective of this research is to determine the accuracy of existing physical models of the InSAR (Interferometric Synthetic Aperture Radar) dry snow signal; and, if the snow signature can be removed to enable accurate measurement of heave from winter refreezing in the active layer. There are currently three res...


The Hidden Image of Thawing Permafrost: Mapping Subsurface Properties and Taliks with Remote Sensing (HIT Permafrost)
chercheur principal: Grünberg, Inge
Année(s) de permis: 2022
Résumé: This licence has been issued for the scientific research application No.5196. The goal for this expedition is to collect ground-truth data for two prior airborne campaigns conducted in 2018 and 2019. The data obtained from radar remote sensing of the area around Trail Valley Creek represent a complex signal from the vegetation, active layer, and permafrost. Based on prior field expeditions, the...


Influence of changing active-layer thickness on permafrost peatland trace gas exchanges and carbon balance
chercheur principal: Sonnentag, Oliver
Année(s) de permis: 2022 2021 2019 2017 2016 2015 2014 2013 2013
Résumé: 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
chercheur principal: Smith, Sharon S
Année(s) de permis: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006
Résumé: This project continues the on-going monitoring program of permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT. This phase of the project is largely data collection. The specific objectives are: 1) to provide baseline knowledge of permafrost and terrain conditions (specifically ground temperature and permafrost active layer thickness) and ...


Permafrost, river, and groundwater inputs of trace elements and nutrients to the Mackenzie River estuary
chercheur principal: Charette, Matthew
Année(s) de permis: 2016
Résumé: The objectives are to measure a suite of trace elements and isotopes (TEIs) in the active layer and permanently frozen layer of permafrost cores sampled near the Mackenzie River, and to compare these concentrations to those observed in submarine groundwater discharge and Mackenzie River discharge in order to determine whether permafrost-associated TEIs are being transported to the coastal Arctic. ...


Thermal State of Permafrost
chercheur principal: Siegfried, Dian
Année(s) de permis: 2016 2013 2010
Résumé: The objective of this project is to continue an ongoing long-term monitoring of permafrost temperatures on Banks Island and Mould Bay. At these sites the research team have lost remote (satellite) communication and need to make repairs to continue receiving data. The research team are currently monitoring active layer and permafrost temperatures, active layer soil moisture, air temperature, and...


Variability in peat plateau energy balance and water chemistry along a warming gradient
chercheur principal: English, Michael C
Année(s) de permis: 2013
Résumé: This research is physically based on a peat plateau and a peat bog, both close to Yellowknife. There are two primary objectives to this research. The first involves quantifying surface energy balances in areas where degradation of peat is pronounced and where it is not. Suprapermafrost water from the degraded and non-degraded sites will be analyzed for nutrients and dissolved organic carbon (DOC) ...


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