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physical sciencesclimate change
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291 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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Current contaminant deposition measurements in precipitation throughout the NWT
chercheur principal:
Année(s) de permis: 1993
Résumé: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...
Année(s) de permis: 1993
Résumé: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...
Contemporary channel characteristics and behaviour along the lower reaches of major tributaries of the Mackenzie River (from Norman Wells to the Mackenzie Delta)
chercheur principal:
Année(s) de permis: 1993 1992
Résumé: The research will provide basic information on the characteristics of the rivers and valleys that are major tributaries emptying into the Mackenzie River. The tributaries to be studied include the Carcajou, Mountain, Hume, Ramparts, Hare Indian, Ontaratue, Arctic Red and Peel Rivers. Little is known about the lower 5-7 km portion of these rivers. The information collected will include both aeri...
Année(s) de permis: 1993 1992
Résumé: The research will provide basic information on the characteristics of the rivers and valleys that are major tributaries emptying into the Mackenzie River. The tributaries to be studied include the Carcajou, Mountain, Hume, Ramparts, Hare Indian, Ontaratue, Arctic Red and Peel Rivers. Little is known about the lower 5-7 km portion of these rivers. The information collected will include both aeri...
Spatial variation in the isotopic composition of snowpack in the Mackenzie Delta area
chercheur principal:
Année(s) de permis: 1993 1992
Résumé: This on-going research involves the assessment of isotopes in snowpack each winter. Collection of snow and ice at various sites along winter roads in the N.W.T. provides information about the composition of isotopes within a region. Isotopic composition of snow and ice taken from ice cores in Greenland and Antarctica have been able to provide information about past climates....
Année(s) de permis: 1993 1992
Résumé: This on-going research involves the assessment of isotopes in snowpack each winter. Collection of snow and ice at various sites along winter roads in the N.W.T. provides information about the composition of isotopes within a region. Isotopic composition of snow and ice taken from ice cores in Greenland and Antarctica have been able to provide information about past climates....
Permafrost Studies: Western Arctic Coast
chercheur principal:
Année(s) de permis: 1997 1996 1995 1994 1993 1992 1991 1989
Résumé: This on-going research of permafrost growth involves investigations at a large lake artificially drained in 1978. The study of pingos, started in 1969, and the study of ice wedges, started in 1966, involve measurements of ice growth....
Année(s) de permis: 1997 1996 1995 1994 1993 1992 1991 1989
Résumé: This on-going research of permafrost growth involves investigations at a large lake artificially drained in 1978. The study of pingos, started in 1969, and the study of ice wedges, started in 1966, involve measurements of ice growth....
Mackenzie Basin Impact Study: Land Assessment
chercheur principal:
Année(s) de permis: 1993 1992
Résumé: The Mackenzie Basin Impact Study will assess the potential impacts of global climatic change on the region. The component on land assessment will determine possible changes in land capability. Information on resource management goals is needed so that the study can can assess whether changes in land capability might lead to conflicts over land use....
Année(s) de permis: 1993 1992
Résumé: The Mackenzie Basin Impact Study will assess the potential impacts of global climatic change on the region. The component on land assessment will determine possible changes in land capability. Information on resource management goals is needed so that the study can can assess whether changes in land capability might lead to conflicts over land use....
Spectral Properties of Tundra Surfaces
chercheur principal:
Année(s) de permis: 1993 1992 1991 1990
Résumé: The researcher will complete the intensive sampling of the Arctic Coastal Plain west of Shallow Bay on the Mackenzie River Delta to the Alaska border, where tundra surfaces could differ from those east of the Mackenzie Delta, high arctic tundra on northern Cape Bathurst, and additional treeline sites between Inuvik and the Horton River....
Année(s) de permis: 1993 1992 1991 1990
Résumé: The researcher will complete the intensive sampling of the Arctic Coastal Plain west of Shallow Bay on the Mackenzie River Delta to the Alaska border, where tundra surfaces could differ from those east of the Mackenzie Delta, high arctic tundra on northern Cape Bathurst, and additional treeline sites between Inuvik and the Horton River....
Quaternary Geology of the Beaufort Sea Coastal Plain
chercheur principal:
Année(s) de permis: 1992 1991 1990
Résumé: The researcher and his team will complete a detailed paleomagnetic sampling of the glacial and nonglacial sediments in the Morgan Bluffs of eastern Banks Island, and collect samples of boulders for Chlorine 36 dating. The data will allow the team to confirm or disconfirm previously proposed correlations and establish on a firmer basis the chronological framework for one of the longest sequences o...
Année(s) de permis: 1992 1991 1990
Résumé: The researcher and his team will complete a detailed paleomagnetic sampling of the glacial and nonglacial sediments in the Morgan Bluffs of eastern Banks Island, and collect samples of boulders for Chlorine 36 dating. The data will allow the team to confirm or disconfirm previously proposed correlations and establish on a firmer basis the chronological framework for one of the longest sequences o...
The Nature and Origin of Ground Ice in the High Arctic and Icing as a Hydrologic Component of Northern Drainage Basins
chercheur principal:
Année(s) de permis: 1994 1992 1991 1990 1988
Résumé: The researchers will gain a better understanding of permafrost conditions of the study area and the environmental conditions under which permafrost formed and evolved. They will also investigate icings and icing processes, since icings are a hydrologic phenomenon and their occurance has implications for recharge and runoff of drainage systems and water resource management....
Année(s) de permis: 1994 1992 1991 1990 1988
Résumé: The researchers will gain a better understanding of permafrost conditions of the study area and the environmental conditions under which permafrost formed and evolved. They will also investigate icings and icing processes, since icings are a hydrologic phenomenon and their occurance has implications for recharge and runoff of drainage systems and water resource management....
Peat Plateau Collapse and Climate Change
chercheur principal:
Année(s) de permis: 1992
Résumé: The research will examine permafrost-containing peat plateaus that have burned during severe fires to determine the features of subsidence (decrease) and the rate of subsidence....
Année(s) de permis: 1992
Résumé: The research will examine permafrost-containing peat plateaus that have burned during severe fires to determine the features of subsidence (decrease) and the rate of subsidence....
Vegetation Response to Global Warming in the Mackenzie River Basin: Interations Between Northern Boreal Forests, Wetlands and Regional Hydrology
chercheur principal:
Année(s) de permis: 1992
Résumé: The Researcher will map the present distribution of boreal and subarctic wetlands in the Mackenzie River Basin. Wetland vegetation and water chemistry will be described for areas immediately surrounding permanent weather stations. The ecological relationships between climate, wetland water chemistry and wetland species distribution will be analyzed. A predictive indicator model will be built to pr...
Année(s) de permis: 1992
Résumé: The Researcher will map the present distribution of boreal and subarctic wetlands in the Mackenzie River Basin. Wetland vegetation and water chemistry will be described for areas immediately surrounding permanent weather stations. The ecological relationships between climate, wetland water chemistry and wetland species distribution will be analyzed. A predictive indicator model will be built to pr...
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