NWT RESEARCH DATABASE

Principal Investigator: Challen Urbanic, Jane
Licensed Year(s): 2012 2011 2010 2009
Summary: The objective of this research is to assess the performance of lagoons and wetlands in the treatment of municipal wastewater in Canada's Arctic. A secondary objective is to determine the occurrence of trace contaminants in northern wastewaters. Samples will be taken from the influent (raw sewage) and effluent (treated wastewater) select wastewater systems. Samples will be taken during the perio...

Principal Investigator: Lesack, Lance
Licensed Year(s): 2008 2007
Summary: The aims of the various components of this project are to develop a hydraulic model for the Mackenzie Delta by observation of ice jams for calibration of the model, assessing ice cover and breakup patterns, linking an ice-ocean-atmosphere model of storm surges to the hydraulic model, measuring water stored in off-channel areas, improving information on lake-flooding for off-channel areas, quantify...

Principal Investigator: Walker, Anne E
Licensed Year(s): 2008
Summary: 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...

Principal Investigator: Prowse, Terry D
Licensed Year(s): 2008 2007 2006 2005
Summary: 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...

Principal Investigator: Katz, Sharon
Licensed Year(s): 2007
Summary: 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 ...

Principal Investigator: Nixon, Frederick M
Licensed Year(s): 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990
Summary: 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...

Principal Investigator: Hawkins, Jim R.
Licensed Year(s): 2007
Summary: 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...

Principal Investigator: Prowse, Terry D
Licensed Year(s): 2008 2007 2006 2005 2004
Summary: 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 ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2009 2008 2007 2006
Summary: While data collected during the Environmental Impact Assessment studies (carried out in conjunction with the proposed construction and operation of the Mackenzie Gas Pipeline) are relatively comprehensive in describing the major physical-chemical features of the aquatic environment, they are lacking in the descriptions of the biological features of these environments, and as a consequence, their s...

Principal Investigator: Povey, Andrew
Licensed Year(s): 2005 2004 2003 2002
Summary: As part of the Mackenzie Valley Gas Project, baseline aquatic studies in the Gwich’in Settlement Area (GSA) will continue in 2005. The work will include additional investigations into fish, hydrology and water quality in rivers and lakes previously visited, as well as summer and fall aquatics studies of waterbodies near the infrastructure sites, access roads, and borrow pits. All of the aquati...