30 dossier(s) trouvé(s) portant l’étiquette "permafrost thaw" (les projets pluriannuels sont regroupés):
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Three-Dimensional multi-methodological Investigation of Retrogressive Thaw Slumps in the Mackenzie Delta region (3DIRTS)
chercheur principal: Kunz, Julius
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No. 5655. This project aims to investigate the three-dimensional subsurface structures in the vicinity of active retrogressive thaw slumps and their relationship to spatio-temporal slump-development. The number and activity of retrogressive thaw slumps have increased during the last decades due to climatic, hydrologic and ther...


Effects of permafrost thaw and vegetation shifts on carbon and mercury cycling
chercheur principal: Wild, Birgit
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No.5564. The main goal of the project is to understand how gradients in tundra vegetation and permafrost thaw affect soil carbon and mercury cycling. This will allow the research team to assess how permafrost thaw and changes in vegetation in a warmer climate could alter future carbon dioxide fluxes and impact mercury cycling ...


Perma-X Airborne Campaign 2023
chercheur principal: Grosse, Guido
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No. 5656. The objective is to conduct airborne surveys at 3300ft (1000m) altitude to collect high-resolution aerial images and LiDAR elevation data that can be used to describe and quantify rates of permafrost thaw, coastal erosion, thaw slumping, lake change, and vegetation change. Daily survey flights (depending on cloud-fre...


Permafrost slumping and land-water connections on the Peel Plateau
chercheur principal: Tank, Suzanne E
Année(s) de permis: 2023 2022 2021
Résumé: This licence has been issued for the scientific research application No. 5597. The objective of this research is to understand how permafrost slumping increases the mobilization of carbon, nutrients, and toxins (mercury) from land to water, and the effects of this transport on stream ecosystems and the global carbon cycle. Over the next several years, the research team plan to measure stream ch...


Impacts of Permafrost Thaw Slump Extent, Severity and Persistence on Stream Biotic Health
chercheur principal: Musetta-Lambert, Jordan
Année(s) de permis: 2023 2022
Résumé: This licence has been issued for the scientific research application No.5613. The project with investigate impacts of permafrost slumping on water quality, benthic macroinvertebrate communities, fish communities and ecosystem function by advancing research on thaw slumps within the Stony Creek Watershed. The research team will directly collaborate with the Northwest Territories Geological Surve...


Recent, rapid environmental change in the western Canadian Arctic
chercheur principal: Thienpont, Joshua
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No.5573. To understand how landscape changes caused by climate warming are impacting aquatic ecosystems, particularly lakes and streams. These disturbances focus primarily on permafrost thaw, in the form of thaw slumps and landslides. The understanding derived will allow better understanding of how water quality and aquatic ha...


DEPTHAW
chercheur principal: Overduin, Pier Paul
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No.5561. Through ERT and PS methods, the extent and depth will be mapped to the top of ice-bearing permafrost (IBP) offshore of Tuktoyaktuk Island. On land, ERT surveys will also reveal information on permafrost characteristics like ice content, but offshore, tools can only reliably map the thickness of the unfrozen body (tali...


Impacts of permafrost thaw on land cover and downstream water quality
chercheur principal: Baltzer, Jennifer L
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No.5568. The primary objective of this project is to link long-term records of ground temperature and permafrost conditions with changes in landcover and water quality of adjacent ponds and lakes. In other words, how thawing permafrost alters terrestrial and aquatic ecosystem properties. Along the Mackenzie Valley corridor...


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
chercheur principal: Sonnentag, Oliver
Année(s) de permis: 2024 2023 2022 2021 2019 2018 2018 2017 2016 2015
Résumé: This licence has been issued for the scientific research application No.5535. Through this project my research group 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 ...


Scotty Creek 2.0: how interaction between rapidly thawing permafrost and wildfire affect peatland complex trace gas exchanges
chercheur principal: Sonnentag, Oliver
Année(s) de permis: 2024 2023
Résumé: This licence has been issued for the scientific research application No.5532. The objective of the research project is to elucidate the change in the atmospheric carbon balance of thawing permafrost regions post-disturbance. The impact of disturbances such as fire, especially in conjunction with permafrost thaw, are still not well understood. By installing a new 15-m eddy covariance tower at Sc...


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