291 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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Permafrost, river, and groundwater inputs of trace elements and nutrients to the Mackenzie River estuary
chercheur principal:
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. ...


Studies of methane release from lakes in the Mackenzie Delta and on Richards Island
chercheur principal:
Année(s) de permis: 2017 2016 2015
Résumé: The focus of this one-year-long project is to study methane release from six different lakes in the Mackenzie Delta and Richards Island area, with a focus on capturing a full ice in/ice out cycle, to determine how much methane is released from lakes under different conditions and how microorganisms increase or decrease methane release. The research team will to undertake two distinct activitie...


Biogeochemistry of Lakes in the Mackenzie Delta
chercheur principal:
Année(s) de permis: 2017 2016 2015 2014 2010 2009 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993
Résumé: The Objectives of this research are to: 1) Improve our understanding of microbial carbon-processing in Mackenzie Delta lakes and how it is affected by the changing water levels; and 2) Decipher the impact of water level changes on the ability of the Mackenzie Delta to affect riverine nutrient flow to the ocean. Specific activities for the coming field season include the following: (Goal 1) I...


Gwich'in moss houses and winter berries as climate change adaptations
chercheur principal:
Année(s) de permis: 2014
Résumé: The objectives of this research project are to: 1) Learn how northern peoples can continue to adapt to changing climates by applying Elders’ knowledge e.g. healthy seasonal harvests and moss-insulated shelters. 2) Engage First Nations young people in traditional practices such as moss houses reconstruction so the practices shared by Elders can foster climate adaptation well into the future. 3) Bui...


Radiation – Aerosol – Cloud Experiment in the Arctic Circle (RACEPAC)
chercheur principal:
Année(s) de permis: 2014
Résumé: These research activities combine investigations of clouds and atmospheric aerosol in the Beaufort Sea. The main aim of the cloud studies is to improve the understanding of the cloud-related processes in the Arctic atmosphere and to use these measurements to improve the performance of regional and global climate models of the Arctic. To understand cloud processes knowledge on aerosol properties wh...


Permafrost regions in transition: controls on carbon cycling and greenhouse gas emissions
chercheur principal:
Année(s) de permis: 2014 2013
Résumé: This research aims to understand what factors affect 1) the amount of carbon stored in tundra soils, and 2) the conversion of this soil carbon into greenhouse gases (carbon dioxide and methane). In particular, the research team wants to understand how hydrology (which is the distribution and movement of water in soils and streams) might affect the carbon cycle under future global warming. This inc...


Big river wood dynamics in the Canadian subarctic
chercheur principal:
Année(s) de permis: 2014 2013 2012
Résumé: The research team propose to examine the sources of wood within the Mackenzie River drainage, transport of wood toward the Arctic Ocean, and the potential implications of global warming for wood recruitment and transport. The primary objectives are to (i) evaluate fundamental controls on wood dynamics within the Mackenzie and (ii) develop an empirical predictive model to estimate future wood dynam...


Soil Carbon in the Mackenzie Delta Region
chercheur principal:
Année(s) de permis: 2015 2014 2013
Résumé: The goal of this research is to understand how landscape processes influence the quantity and quality of soil carbon in the Mackenzie Delta Region. Particular attention will be paid to the depth distribution of soil carbon and how it is affected by differences in vegetation and soil forming processes. Key environmental differences that will be examined include forest vs tundra and delta vs uplands...


Community based permafrost and active layer monitoring program
chercheur principal:
Année(s) de permis: 2013
Résumé: Uniform permafrost and ground surface temperature measurements are one of the more important databases for long-term climatic study as well as remote sensing ground truthing data. Consistency in sensor depth, casing and drilling methods helps in comparison of the spatial and temporal distribution of the permafrost and seasonal conditions. The proposed partnership with the schools aids continuous m...


Permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT
chercheur principal:
Année(s) de permis: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006
Résumé: This project combines the ongoing monitoring program of the same title (Permafrost monitoring and collection of baseline terrain information in the Mackenzie Valley Corridor, NWT) and the activities previously undertaken by the project title, “Active Layer Monitoring Network in the Mackenzie Valley”. The objectives of this study are to provide baseline knowledge of permafrost and terrain condit...


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