57 record(s) found with the tag "water chemistry" (multi-year projects are grouped):
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The effects of fire on diverse aquatic ecosystems of the NWT
Principal Investigator: Tank, Suzanne E
Licenced Year(s): 2016
Summary: The objective of this study is to determine the effect of fire on water quality within the southern Northwest Territories landscape. The research team will work across the Taiga Plains and Taiga Shield Ecoregions, because it is believed that differences in landscape between these regions will affect the catchment response to fire. The research team will also target catchments with variable permaf...


Investigations of the water cycle and hydrological processes of the subarctic Canadian Shield
Principal Investigator: Spence, Christopher
Licenced Year(s): 2016 2012 2011 2010 2009 2008 2007
Summary: It is the objective of this research to determine the water cycle processes acting in watersheds that could affect the streamflow response and water chemistry of Taiga Shield streams. The proposed work will take place within a research basin framework. The proposed watershed, the upper reaches of Baker Creek, is a typical Canadian Shield stream that drains 150 km2 into Great Slave Lake. There ...


The Arctic Great Rivers Observatory
Principal Investigator: Holmes, R. Max
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009
Summary: The Arctic Great Rivers Observatory project studies the six largest rivers in the Arctic; the Mackenzie and Yukon Rivers in North America and the Ob', Yenisey, Lena, and Kolyma Rivers in Russia. The research team are interested in how climate change is impacting Arctic rivers. Measurements will be taken of the concentration of naturally-occurring chemicals (like carbon and nitrogen) and try to f...


Erosion of carbon from high-latitude peatlands: Isotopic insight into fluvial transfer in the Mackenzie River Basin
Principal Investigator: Hilton, Robert G
Licenced Year(s): 2013 2011 2010 2009
Summary: The objectives of this research project are to correct for fossil particulate organic carbon (POC) input to the Mackenzie River, and to determine the loci of peatland organic carbon (OC) erosion and flux to the fluvial system. WATER VELOCITY TRANSECT At each sampling location, an Acoustic Doppler Current Profiler (ADCP) will allow the research team to determine bathymetry, water velocity trans...


Degradation of dissolved organic carbon in Mackenzie Delta lakes and river channels
Principal Investigator: Tank, Suzanne E
Licenced Year(s): 2013 2012
Summary: This study will examine the solar degradation of riverine dissolved organic carbon (DOC) to carbon dioxide (CO2) throughout the Mackenzie River Delta. During the spring runoff peak just before summer solstice, ice-jam flooding inundates the Delta with river water, which spreads out in a relatively thin layer over an extended area and is exposed to 24-hour Arctic sunlight. This water is then slowly...


An investigation of arsenic speciation and toxicity in Baker Creek sediments from Giant Mine in the Northwest Territories, Canada
Principal Investigator: Nash, Tyler J
Licenced Year(s): 2012
Summary: The objective of this research project is to assess the sediment quality of Baker Creek. This will be achieved by analyzing factors influencing arsenic mobility from sediments to overlying water and assessing the toxicology of the sediments using exposure tests on indicator organisms. Core samples of Baker Creek sediments will be taken by the researchers using aluminum pipes driven into the gro...


Bosworth Creek Monitoring Project
Principal Investigator: Guthrie, Glen H
Licenced Year(s): 2011 2010 2009 2008 2007 2006
Summary: Year Four: The Bosworth Creek Monitoring Project has become permanently embedded in Mackenzie Mountain School’s Experiential Science 30 Program and will continue to provide professional development for local youth through associations with academic and industrial institutions. The project will complete baseline biological and chemical data and investigate new sources of ground water that may be t...


Towards Long-term Monitoring of the CO2 System in Arctic Rivers
Principal Investigator: Wang, Zhaohui 'Aleck'
Licenced Year(s): 2012 2011 2010
Summary: The goal of this research is to initiate time-series measurements of the CO2 system in the Mackenzie River, the major Arctic river in North America. This work will serve as the initial step towards long-term measurements and studies of the impacts of global warming on the CO2 systems in Mackenzie River, its estuary, and adjacent coastal waters. The field campaigns will include both diurnal and...


Enhanced Investigations of the Factors affecting Long-term Contaminant Trends in Predatory Fish in Great Slave Lake, Northwest Territories
Principal Investigator: Evans, Marlene
Licenced Year(s): 2010 2009
Summary: For several years, studies have been conducted to find out if contaminant levels are changing in lake trout and burbot in Great Slave Lake. The researchers have been seeing some changes with mercury levels increasing and HCH levels declining in these fish. However, there have been other changes in the fish, especially lake trout which appear to contain less fat and to be feeding closer to shore th...


Chemical Evolution of a Hypersaline High Arctic Coastal Lake
Principal Investigator: Lamoureux, Scott F
Licenced Year(s): 2010 2009
Summary: This licence is being issued for the scientific research application no. 1013. The goal of this research is to distinguish the chemical and physical processes acting on different lakes on Melville Island in order to understand how the systems have developed through time. Of particular interest is the mechanism to explain how the lakes became salty after the last glaciation. Shellabear Lake ...


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