North Slave Permafrost Study: Characterization and Predicting Discontinuous Permafrost for Climate Change Adaptation
chercheur principal: Wolfe, Stephen A (16)
Nᵒ de permis: 16928
Organisation: Geological Survey of Canada
Année(s) de permis: 2024 2023 2022 2021 2020
Délivré: janv. 10, 2022
Équipe de projet: Wendy Sladen, Caroline Duchesne, Peter Morse, Steve Kokelj, Ashley Rudy, Weiss Neils

Objectif(s): To characterize, model and predict permafrost occurrence under varying terrain types and environmental disturbances.

Description du projet: This licence has been issued for the scientific research application No.5113. 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. Different landscapes across the region are exhibiting varying responses to warming. This study collects ground temperature and environmental information to describe the state of permafrost in the area. Supporting data from climatic, soils, vegetation, lakes and hydrological surveys assist in characterizing permafrost distribution. The broad objective is to characterize, model and predict permafrost occurrence under varying terrain types and environmental disturbances. Selected sites characterize the range of permafrost conditions. ... Plus de résultatsLocal site conditions capture variation in ground temperature conditions across transitions from thick unconsolidated deposits to bedrock, and with proximity to water bodies. Consultation has ensured that sites yield the most locally relevant data. Study design involves measuring ground temperatures at undisturbed locations and in proximity to adjacent lakes. Temperatures describe active-layer conditions and freezeback characteristics of respective sites. Active layer thicknesses are measured at each site. The results of this work are communicated to NWT communities through workshops organized through the Cumulative Impact Monitoring Program, NWT Chamber of Mines, and Northwest Territories Geological Survey. The research is also communicated to groups and agencies responsible for managing infrastructure and regulating land and water use. Public lectures, field tours, and guidebooks are also provided. Training opportunities with local schools and Aurora College are facilitated as knowledge transfers to NWT residents. The fieldwork for this study will be conducted from August 15, 2022 to October 01, 2022. Afficher moins