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physical scienceshydrology
permafrost
climate change
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geochemistry
vegetation
active layer
water sampling
metal concentrations
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49 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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Harnessing River Current Power with Helical Gorlov Turbines
chercheur principal:
Année(s) de permis: 2007
Résumé: The goals of this study are: to develop an understanding of water and ice behaviour in sites on the Mackenzie and Great Bear rivers; to obtain knowledge of water speed, depth, current profile, frazil ice and how deep ice may reach into the rivers during the Spring break up; to use this information to determine the feasibility of using Ducted Venturi and Gorlov Helical Turbines (DV-GHT) to harness ...
Année(s) de permis: 2007
Résumé: The goals of this study are: to develop an understanding of water and ice behaviour in sites on the Mackenzie and Great Bear rivers; to obtain knowledge of water speed, depth, current profile, frazil ice and how deep ice may reach into the rivers during the Spring break up; to use this information to determine the feasibility of using Ducted Venturi and Gorlov Helical Turbines (DV-GHT) to harness ...
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 is the earth overlying permafrost that thaws from the surface and re-freezes each year, and it responds to climate change. Active layer thickness influences vegetation and soil conditions, potentially influencing hunting, forestry, etc. and it’s, thickness, texture and moisture content affects foundations. Changes in the active layer and thaw depth can contribute to slope instabil...
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 is the earth overlying permafrost that thaws from the surface and re-freezes each year, and it responds to climate change. Active layer thickness influences vegetation and soil conditions, potentially influencing hunting, forestry, etc. and it’s, thickness, texture and moisture content affects foundations. Changes in the active layer and thaw depth can contribute to slope instabil...
IPY-SCARF: International Polar Year - Study of Canadian Arctic River-delta Fluxes
chercheur principal:
Année(s) de permis: 2008 2007
Résumé: The Arctic Ocean receives much higher river inflows than other ocean basins and this has major implications for sea-ice formation, for nutrient supply to the base of aquatic marine foodwebs, and for optical properties of ice-free areas and ice-pack margins via fluxes of dissolved organic matter and riverine particles. The Beaufort Shelf is strongly influenced by Mackenzie River outflows. However, ...
Année(s) de permis: 2008 2007
Résumé: The Arctic Ocean receives much higher river inflows than other ocean basins and this has major implications for sea-ice formation, for nutrient supply to the base of aquatic marine foodwebs, and for optical properties of ice-free areas and ice-pack margins via fluxes of dissolved organic matter and riverine particles. The Beaufort Shelf is strongly influenced by Mackenzie River outflows. However, ...
2006 - 2007 Biophysical and Reconnaissance Studies in the Gwich’in Settlement Area
chercheur principal:
Année(s) de permis: 2007
Résumé: Several biophysical and engineering studies on the feasibility of a pipeline in the Mackenzie Valley have been conducted, and will continue in 2007. Local knowledge, scientific research, and existing technical information are being used to develop a knowledge base for environmental protection plans, engineering design and regulatory processes. Route and site reconnaissance will be by helicopte...
Année(s) de permis: 2007
Résumé: Several biophysical and engineering studies on the feasibility of a pipeline in the Mackenzie Valley have been conducted, and will continue in 2007. Local knowledge, scientific research, and existing technical information are being used to develop a knowledge base for environmental protection plans, engineering design and regulatory processes. Route and site reconnaissance will be by helicopte...
Evaluation of extreme events (ice jams) and deep scour holes on Mackenzie Delta Channels
chercheur principal:
Année(s) de permis: 2008 2007 2006 2005 2004
Résumé: The objectives of this study are to quantify the frequency and magnitude of ice jams in the Mackenzie River Delta, including the hydroclimatic conditions controlling their occurrence and associated floods, develop a hydraulic model of it, and investigate the importance of deep scour holes in the Mackenzie River. This study is an expansion of previous research conducted in 2004. Ice jamming has ...
Année(s) de permis: 2008 2007 2006 2005 2004
Résumé: The objectives of this study are to quantify the frequency and magnitude of ice jams in the Mackenzie River Delta, including the hydroclimatic conditions controlling their occurrence and associated floods, develop a hydraulic model of it, and investigate the importance of deep scour holes in the Mackenzie River. This study is an expansion of previous research conducted in 2004. Ice jamming has ...
2005 Spring Break-up Watercourse Investigation Program in the Gwich'in Settlement Area
chercheur principal:
Année(s) de permis: 2005 2004
Résumé: This research is part of an aerial reconnaissance program to study spring breakup at the major watercourse crossings along the proposed pipeline right-of-way from the Deh Cho region in the south to the Inuvialuit Settlement Region in the north. The resea...
Année(s) de permis: 2005 2004
Résumé: This research is part of an aerial reconnaissance program to study spring breakup at the major watercourse crossings along the proposed pipeline right-of-way from the Deh Cho region in the south to the Inuvialuit Settlement Region in the north. The resea...
Snow accumulation/runoff in high latitude permafrost basins
chercheur principal:
Année(s) de permis: 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Résumé: The primary objective of this project is to improve understanding of the changes in water and energy in northern regions, and to develop improved computer models of these processes. The Trail Valley Creek, Hans Creek, and Zed Creek sites will be accessed...
Année(s) de permis: 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Résumé: The primary objective of this project is to improve understanding of the changes in water and energy in northern regions, and to develop improved computer models of these processes. The Trail Valley Creek, Hans Creek, and Zed Creek sites will be accessed...
Climate Geochemistry
chercheur principal:
Année(s) de permis: 2005 2004
Résumé: The purpose of this study is to collect river waters to determine the concentrations of dissolved organic carbon, particulate organic carbon, and nutrients, including nitrate, phosphate and silicate, and to examine their temporary variations related to c...
Année(s) de permis: 2005 2004
Résumé: The purpose of this study is to collect river waters to determine the concentrations of dissolved organic carbon, particulate organic carbon, and nutrients, including nitrate, phosphate and silicate, and to examine their temporary variations related to c...
Extreme Flooding Events in the Mackenzie River Basin
chercheur principal:
Année(s) de permis: 2004
Résumé: It is known that extreme flood levels within the Mackenzie River Basin are caused by ice jamming events. Analysis of open water versus ice influenced water levels at several sites within the Mackenzie River Basin will provide further quantification of th...
Année(s) de permis: 2004
Résumé: It is known that extreme flood levels within the Mackenzie River Basin are caused by ice jamming events. Analysis of open water versus ice influenced water levels at several sites within the Mackenzie River Basin will provide further quantification of th...
Geomorphological and hydrological research on valley formation in Arctic and subarctic environments
chercheur principal:
Année(s) de permis: 2000 1994 1992 1990
Résumé: The researcher will measure discharge, run-off velocity, sediment load, dissolved load and microclimate parameters (air and ground temperatures, relative humidity, evaporation, precipitation and radiation) in small valleys of James Creek. They drive to the location in a 3/4 ton truck which is parked in an abandoned quarry near the road. They walk to their data collection sites. The observations...
Année(s) de permis: 2000 1994 1992 1990
Résumé: The researcher will measure discharge, run-off velocity, sediment load, dissolved load and microclimate parameters (air and ground temperatures, relative humidity, evaporation, precipitation and radiation) in small valleys of James Creek. They drive to the location in a 3/4 ton truck which is parked in an abandoned quarry near the road. They walk to their data collection sites. The observations...
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