5 record(s) found in the location "" (multi-year projects are grouped):
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Effects of permafrost thaw and vegetation shifts on carbon and mercury cycling
Principal Investigator: Wild, Birgit
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5564. The main goal of the project is to understand how gradients in tundra vegetation and permafrost thaw affect soil carbon and mercury cycling. This will allow the research team to assess how permafrost thaw and changes in vegetation in a warmer climate could alter future carbon dioxide fluxes and impact mercury cycling ...


Hydrothermal Regime of Riparian Terrain in Continuous Permafrost, Western Canadian Arctic
Principal Investigator: Ensom, Timothy P
Licensed Year(s): 2022 2021 2020 2019 2018 2017
Summary: This licence has been issued for the scientific research application No.4938. The specific objectives of the project are as follows: 1) Determine the spatial extent, distribution, and timing of winter icing events in streams along the ITH through ground-based and aerial reconnaissance of stream crossings; 2) Identify relations between physical watershed characteristics and icing dynamics thro...


Predicting climate-driven changes in water quality and biological communities in Gwich'in lakes
Principal Investigator: Gray, Derek K
Licensed Year(s): 2017
Summary: Zooplankton play a key role in aquatic food webs, providing a conduit for the movement of energy between primary producers (algae) and larger organisms such as macroinvertebrates and fish. Therefore, elucidating the impact of permafrost melting on zooplankton is key to gaining a broader understanding of climate change on aquatic ecosystems in Canada’s north. Objectives of this proposed researc...


Recent changes in carbon source-sink relationships and greenhouse gas emissions in forest and peatland ecosystems along the Mackenzie Valley region of Canada
Principal Investigator: Bhatti, Jagtar
Licensed Year(s): 2011 2010 2009 2008 2007
Summary: The objective of this research is to assess variations and processes controlling CO2, CH4 and N2O dynamics along the Mackenzie Valley, to investigate the amount and character of greenhouse gases released, and to understand conditions controlling soil GHG emissions. Soil gas sample tubes will be sampled on a seasonal basis for gas concentration (CH4, N2O, CO2) and isotope ratios. The response of...


A Global Reconnaissance Survey of Perfluorinated Compounds in Soils
Principal Investigator: Washington, John
Licensed Year(s): 2006
Summary: PFOA is a synthetic compound documented as being widely dispersed in the environment, including in biota of high-northern latitudes. The route of this dispersal is not entirely clear. PFOA concentrations in soil samples from several locations around the world will be analyzed to determine environmental reservoirs and global distribution. Two new 250-ml HDPE sample bottles will be shipped to Auro...


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