19 record(s) found with the tag "carbon fluxes" (multi-year projects are grouped):
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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 carbon from land to water, and the effects of this transport on stream ecosystems and the global carbon cycle. This summer, the research team will measure streamwater chemistry at a series of sites draining from the Peel Plateau, near where they enter the Mackenzie Delta. At one site (Stony Creek), t...


Nunataryuk WP4: Satellite tracking of the organic matter in the Mackenzie Delta, impact of climate change on permafrost thaw
Principal Investigator: Babin, Marcel
Licensed Year(s): 2019
Summary: The specific objectives of this project are: 1) to document trends in export of coastal, riverine and subterranean dissolved and particulate organic matter and carbon into the Arctic Ocean; 2) to determine their fate and related processes (origin and age, transport, physical, chemical, and biological transformation) in coastal waters and estuarine sediment; and 3) to assess the impacts of thes...


Future of Tundra-Atmosphere Climate Interactions
Principal Investigator: Lafleur, Peter M
Licensed Year(s): 2019
Summary: The overall goal of this project is to increase the knowledge of how tundra environments interact with the atmosphere and predict how changing tundra vegetation will affect future climates. Tundra ecosystems exchange energy, water and carbon gases with the atmosphere, which are important elements of the climate system. As tundra vegetation reorganizes in response to global warming, these exchange ...


Marine Arctic Ecosystem Study (MARES)
Principal Investigator: Wiese, Francis
Licensed Year(s): 2018 2017 2016
Summary: BOEM issued a request that Stantec Inc. plan and execute a program during the 2016 field season to accomplish t the following objectives: 1) to collect physical, biological and chemical observations in the Eastern Beaufort Sea from moored and moving platforms; 2) to describe and analyze physical, biological and chemical observations acquired from the moving platforms; and, 3) to simultaneousl...


Impacts of forest fire on discontinuous permafrost in the south-western Northwest Territories
Principal Investigator: Lewkowicz, Antoni G
Licensed Year(s): 2018 2017 2016
Summary: The research goal is to look at how permafrost is changing following forest fire over a range of environmental conditions, with the purpose of improving how change is modelled in the future. The fires of 2014 in the southwestern NWT provide an opportunity to examine how discontinuous permafrost responds to disturbances. This work is being carried out in collaboration with an inter-university team ...


Toward Predicting Future Tundra Carbon Balance
Principal Investigator: Lafleur, Peter M
Licensed Year(s): 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2007 2005 2004
Summary: The broad goal of this research is to increase our understanding of tundra carbon balance of terrestrial and aquatic ecosystems and predict into the future the impacts of climate warming on these systems. Since we are interested in all aspects of the tundra carbon balance a variety of methods are employed. These can be broken down into 4 basic categories: 1. Tundra-atmosphere fluxes - the ex...


Boreal Forest Carbon Balance Studies
Principal Investigator: Layden, Ronald E.
Licensed Year(s): 2017
Summary: The objective of this project is to increase the understanding of taiga carbon balance of terrestrial and aquatic ecosystems and predict into the future the impacts of climate warming on these systems. The exchange of carbon gases between the taiga and atmosphere is a significant component of the carbon balance and is dependent upon vegetation cover. The description below for the tundra site at...


Effects of fire on peatland permafrost stability and carbon cycling
Principal Investigator: Olefeldt, David
Licensed Year(s): 2017 2016 2015
Summary: The project team intend to study carbon cycling in peatland catchments, in order to determine whether the interactions between wildfire and permafrost thaw causes increased release of greenhouse gases from peatlands and aquatic ecosystems to the atmosphere, and thus cause amplified climate change. Given the overall objective of the project, the team intend to address five research questions: ...


Quantifying carbon fluxes and budgets of boreal forest-tundra landscapes under the influence of rapidly changing permafrost regimes
Principal Investigator: Sonnentag, Oliver
Licensed Year(s): 2019 2018 2017 2016 2015 2014 2013
Summary: The objectives of this research project are to: 1) determine if the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system; 2) determine how these two types of feedback differ between the discontinuous and continuous permafrost zones; 3) determine if the reported decrease (increase) in net CO2 (CH4) exchange based on plot- (<1m2) and ecosystem-scale...


Impact of permafrost thaw and wildfire on carbon storage in peatlands
Principal Investigator: Turetsky, Merritt R.
Licensed Year(s): 2014 2013
Summary: The research team aims to study if permafrost thaw in peatlands is linked to rapid losses of organic matter. The field work will focus on extracting a number of cores from different peatland sites that differ in their permafrost status and in fire history. By examining the peat layers in the core the team will be able to reconstruct the history of the site and to link changes in permafrost conditi...


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