6 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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Impact of climate change on catchment biogeochemistry in plains and shield regions
chercheur principal:
Année(s) de permis: 2021 2019 2018
Résumé: This licence has been issued for the scientific research application No.4734. The objective of this research is to identify impacts of climate change and permafrost thaw on pond methane emissions, and on water chemistry in streams that drain peatland-rich catchments. Impacts on methane emissions will be assessed. Specific objectives are: 1) to characterize the trends and variability in magn...


Characterizing the sensitivity and response of freshwater systems to permafrost thaw in the Western Canadian arctic
chercheur principal:
Année(s) de permis: 2021 2021 2020 2019 2018
Résumé: This licence has been issued for the scientific research application No.4934. The purpose of this study is to develop a method of characterizing the sensitivity and response of streams and rivers to regional variability in permafrost thaw in the Beaufort Delta Region, Western Canadian Arctic. All of the field team members are from within the NWT. This field program will follow the attached E...


Predicting climate-driven changes in water quality and biological communities in Gwich'in lakes
chercheur principal:
Année(s) de permis: 2017
Résumé: Zooplankton play a key role in aquatic food webs, providing a conduit for the movement of energy between primary producers (algae) and larger organisms such as macroinvertebrates and fish. Therefore, elucidating the impact of permafrost melting on zooplankton is key to gaining a broader understanding of climate change on aquatic ecosystems in Canada’s north. Objectives of this proposed researc...


Evaluating the environmental impacts of permafrost mega-disturbances along the Dempster Highway, NWT
chercheur principal:
Année(s) de permis: 2014 2013 2012 2011 2010
Résumé: The objective of this research project is to document the extent of ecological change in impacted stream basins draining the eastern slope of the Richardson Mountains and to determine the mechanisms of slump initiation and stabilization. This study will focus on the Stoney Creek catchment, which runs parallel to the Dempster Highway and empties into the Peel River at Fort McPherson, NT. The catchm...


Active Layer Monitoring Network in the Mackenzie Valley
chercheur principal:
Année(s) de permis: 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990
Résumé: The active layer, overlying the permafrost layer, is the surface earth material that thaws and re-freezes each year. Active layer thickness and character can influence hunting, fishing, forestry, gardening, transportation and construction. Changes in the active layer can contribute to landslides which may damage structures, hamper transportation, affect water quality, and influence surface and sub...


Pemafrost and Sump Investigations in the Mackenzie Delta Region
chercheur principal:
Année(s) de permis: 2004 2003 2002 2001 2000 2000 1999
Résumé: This research will investigate: A) the physical and chemical characteristics of permafrost in the Mackenzie Delta region to identify areas of ice-rich permafrost or thaw sensitive terrain. Second; B) the effect of permafrost degradation on water quality...


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