16 record(s) found with the tag "biogeochemistry" (multi-year projects are grouped):
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Biogeochemistry of Lakes in the Mackenzie Delta
Principal Investigator: Lesack, Lance
Licensed Year(s): 2017 2016 2015 2014 2010 2009 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993
Summary: The goals of this research are to examine: 1) measurements of water depths and lake depths for selected area of the Mackenzie Delta; 2) changes in lake flooding and historical lake boundaries in the Mackenzie Delta. Specific activities for this field season include the following: (1) Improved information on the detailed topography of the Mackenzie Delta floodplain and how delta water levels a...


Links between permafrost stability and terrestrial organic carbon export from the Mackenzie River
Principal Investigator: Eglinton, Timothy I
Licensed Year(s): 2011 2009 2007
Summary: Although the widespread permafrost soils in the Arctic rim have the ability to retain terrestrial organic carbon for many millennia, evidence indicates that the recent global warming trend may potentially lead to rapid permafrost destabilization and abrupt release of carbon stored in this vast reservoir. To assess whether this process is underway, and to evaluate its impact on biogeochemical proce...


Assessment of Aqueous Methogenic Precursor Compounds in Periglacial Groundwaters
Principal Investigator: Marschner, Mark
Licensed Year(s): 2003
Summary: This study aims to better understand the formation of "calcrete" deposits, using field samples from the Campbell Uplift. Field sampling will be carried out daily using ground transportation to and from a base in Inuvik. Initial activities will include...


Environmental Study of Abandoned DEW Line Sites.
Principal Investigator: Reimer, K.J.
Licensed Year(s): 1994 1993
Summary: The researchers will collect soil/sediment, water, plant and other biological samples to investigate small-scale variations of introduced substances; to examine larger variations in tundra and marine ecosystems; and to aid decision-makers in identifying when and where remedial measures can be most effectively applied. This investigation will be conducted on abandoned DEW Line sites to evaluate th...


Riverine inputs of contaminants to the Arctic Ocean
Principal Investigator: Swyripa, Murray
Licensed Year(s): 1993
Summary: Northward flowing rivers are thought to be major ways in which contaminants are introduced to the Arctic Ocean. As part of an on-going study, river water and sediments will be collected over the course of the year and assessed for the presence of contaminants. A total of 12 rivers in the Canadian arctic mainland will be sampled in this study, including the Mackenzie, Coppermine, Burnside, Ellice...


Mackenzie Delta Hydrology and Ecosystem Interactions
Principal Investigator: Marsh, Philip
Licensed Year(s): 1993 1992 1991
Summary: This long term study is being conducted to assist in understanding the factors controlling water levels and the availability of nutrients in a variety of lakes in the Mackenzie Delta....


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