Base de données de recherche des TNO

chercheur principal:
Année(s) de permis: 2008
Résumé: The main goal of this project is to better understand how melt ponds evolve, and their influence on absorption/reflection of solar radiation at the sea ice surface. This information will help to predict summer sea ice melt and future Arctic climate. Data will be collected by using instruments mounted on the German research aircraft Polar5. The airbase of Polar5 will be Inuvik. The aircraft will...

chercheur principal:
Année(s) de permis: 2008 2007 2006 2005
Résumé: The objective of this research is to study the impacts of climate change on boreal and aquatic ecosystems in the Mackenzie Delta region. By doing so, the researchers hope to gain a better understanding of the effects of long-term climate change on these ecosystems. Their study will utilize dendrochronological and paleolimnological methods to examine spruce forests and lake sites situated in the in...

chercheur principal:
Année(s) de permis: 2008
Résumé: Environment Canada plans to measure snow depth, snow density and snow water equivalent (water storage in the snowpack), as well as lake ice thickness and structure for comparison with microwave radiometer measurements. Researchers have started to use microwave data from satellites for assessing snow water equivalent (SWE). Field tests to investigate the use of microwave sensors indicate that SW...

chercheur principal:
Année(s) de permis: 2008 2007 2006 2005
Résumé: The objective of this study is to develop a hydro-ecological model for small Arctic lakes to assess the vulnerability of their ecosystems to disturbances, such as climate change or water withdrawal. To quantify geochemical loadings to lakes, a model is being developed by monitoring lakes and their contributing catchment (surface water flow). A climate station will be set up at 2 - 6 sites to mo...

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 ...

chercheur principal:
Année(s) de permis: 2007 2006 2005
Résumé: Peel Plateau and Plain, an area with hydrocarbon potential spanning the NWT-Yukon border, lies southwest of the Mackenzie River, north of the Mackenzie Mountains, and east of the Richardson Mountains. A primary objective of this project is to expand geoscience knowledge to aid in informed land use decisions, as well as stimulate petroleum exploration, industry investment, and economic development ...

chercheur principal:
Année(s) de permis: 2007
Résumé: The objective of this study is to collect stream silts on first order streams on a regional basis at a density of one sample every 13 Km2 across the target area. Heavy mineral concentrate samples will be collected at a density of one sample every 25 km2. The samples will be dried, labeled and shipped to various laboratories for cataloging and analysis. A team of 2 field workers would use a heli...

chercheur principal:
Année(s) de permis: 2009 2007 2006 2005 2004
Résumé: This project’s objective is to take multiple, small .25kg samples of the active layer of permafrost in areas where patterned ground and thermokarst are present. The data gained will help the researchers in their efforts to understand possible cold climate processes in the northern hemisphere of Mars. The researchers intend to visit areas in the vicinity of Inuvik and Tuktoyaktuk where polygonal...

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, ...

chercheur principal:
Année(s) de permis: 2007
Résumé: The objectives of the Alaska-Canada Barren Lands Traverse is to: learn about changes in the Arctic from historical observations, to observe commercial and infrastructure changes in relation to how they compare and contrast to the impacts of a warming Arctic climate, and to compile baseline measurements of snow cover physical properties for validation of satellite datasets and snow cover chemical p...