16 record(s) found with the tag "organic carbon" (multi-year projects are grouped):
Not seeing the results you want? Try advanced search.

Erosion of old organic carbon in the Mackenzie River Basin
Principal Investigator: Hilton, Robert G
Licensed Year(s): 2019
Summary: The research team will collect a new sample set to better quantify the carbon source, age and fate in one of the largest rivers draining the high latitudes. Based on previous work, the team have identified three priority objectives for sample collection in the Mackenzie River: 1) Collect river depth profile sediment samples across the major changes in the annual hydrograph. 2) Sample paired rive...


Where on Earth is fire-derived carbon stored?
Principal Investigator: Abiven, Samuel
Licensed Year(s): 2019
Summary: The objective is to measure the age and stock of organic carbon derived from wildfires (fire-derived carbon) in the Mackenzie River region, and examine long- and short-term processes controlling the size and distribution of fire-derived carbon stocks in soils. The research team will measure fire-derived carbon stocks in soils and determine its age (radiocarbon dating) at four different location...


Erosion of old organic carbon in the Mackenzie River Basin
Principal Investigator: Hilton, Robert G
Licensed Year(s): 2017 2013 2011 2010 2009
Summary: The objective of this research is to better quantify the carbon source, age and fate in one of the largest rivers draining the high latitudes. The research team will sample river sediments and waters to establish temporal variability in OC source and age. The team will target high and falling flow (in June) when most sediment and water are exported. The research team will directly measure velo...


The ecology and paleoecology of benthic macroinvertebrates in the Mackenzie Delta region
Principal Investigator: Quinlan, Roberto
Licensed Year(s): 2017 2016 2015 2014 2013
Summary: This study will examine the effects of permafrost and flooding on the ecological structure and carbon exchange of contrasting lakes in the Mackenzie River Delta. Permafrost thaw in lake catchments may cause increased transport of organic carbon and dissolved nutrients to lakes with effects on the hydrology and water chemistry of lake environments. Patterned ground marked by ice-wedge polygons is f...


DOC in surface waters in the NWT; implications of a changing climate
Principal Investigator: English, Michael C
Licensed Year(s): 2015
Summary: This research focusses upon dissolved organic carbon (DOC) quantity and quality from a suite of hydrological environments underlain by discontinuous permafrost. The research looks to better understand how water quality will be influenced by a warming climate, with specific attention to DOC, by analysing historical water quality data (30 years) from three local rivers (Yellowknife, Cameron, and Mar...


Organic carbon accumulation under Picea sp. (Picea glauca, P. mariana) stands along its range northern boundary
Principal Investigator: Pichler, Viliam
Licensed Year(s): 2015
Summary: The objective of this study is to determine soil organic carbon quantity and quality under open stands of Picea glauca and Picea mariana close to northern forest limits as opposed to open tundra. To enable predictions of forest propagation on soil carbon dynamics under extreme climate conditions. Taking samples from the soil and trees in the Richardson Mts., specifically at two points with the...


The effect of permafrost slumping on carbon delivery from land to water
Principal Investigator: Tank, Suzanne E
Licensed Year(s): 2019 2018 2017 2016 2015 2014
Summary: The objective of this study is to understand how permafrost slumping increases the mobilization of organic carbon from land to water, and the effects of this movement on stream communities. The research team will measure the concentration of stream-water organic carbon upstream and downstream of slump sites. The research team will also examine the fate of this carbon by undertaking incubation expe...


Airborne Observations in Support of NETCARE
Principal Investigator: Abbatt, Jon
Licensed Year(s): 2015
Summary: The NETCARE observations will be covered the range from Longyearbyen, Svalbard (European Arctic) until Inuvik (NWT – Polar 6 aircraft only) and Barrow (Alaska – Polar 5 aircraft only). The observational platforms will be two aircraft: 1) the Alfred Wegener Institute (AWI) POLAR 5, a modified DC-3 aircraft; and 2) the AWI POLAR 6, also a modified DC-3 aircraft. The two platforms will be coordin...


Biogeochemical variations in Pleistocene and Holocene-age permafrost across various ecological landscapes, western Canadian Arctic.
Principal Investigator: Lacelle, Denis
Licensed Year(s): 2014
Summary: The proposed project is a collaborative work between academic researchers, the NWT Geoscience Office and local communities. The objectives of the project are to: (1) investigate geochemical variations in the uppermost 3-5m of permafrost in the western Canadian Arctic; (2) assess potential geochemical implications of anticipated permafrost thaw on terrestrial and aquatic systems; (3) examine soil c...


Variability in peat plateau energy balance and water chemistry along a warming gradient
Principal Investigator: English, Michael C
Licensed Year(s): 2013
Summary: This research is physically based on a peat plateau and a peat bog, both close to Yellowknife. There are two primary objectives to this research. The first involves quantifying surface energy balances in areas where degradation of peat is pronounced and where it is not. Suprapermafrost water from the degraded and non-degraded sites will be analyzed for nutrients and dissolved organic carbon (DOC) ...


TOTAL PAGES: 2