15 record(s) found with the tag "carbon dioxide" (multi-year projects are grouped):
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Development and Testing of Climate Change Monitoring Equipment in the Arctic
Principal Investigator: Layden, Ronald E
Licenced Year(s): 2016
Summary: Data analysis will help the company to optimize the firmware, battery requirements and testing regimes needed and finalize products that can then be used in any type of remote and cold locations for extended periods with little or no equipment monitoring. Several eosFD devices (carbon dioxide monitoring equipment) will be tested to determine usability requirements and to select a winter test ...


Measuring Carbon Fluxes at Illisarvik with Eddy Covariance
Principal Investigator: Skeeter, Wesley R
Licenced Year(s): 2016
Summary: The study will measure carbon dioxide (CO2) and methane (CH4) fluxes at Illisarvik during the peak of the growing season using a combination of eddy covariance and gas chamber methods. The primary objective will be to determine the magnitude of CO2 and CH4 fluxes and determine whether sequestration offsets emission. Secondary objectives will be to observe the temporal and spatial variability of th...


Biogeochemistry of Lakes in the Mackenzie Delta
Principal Investigator: Lesack, Lance
Licenced Year(s): 2016 2015 2014 2010 2009 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993
Summary: The objectives of this research are to: 1) Improve our understanding of microbial carbon-processing in Mackenzie Delta lakes and how it is affected by the changing water levels/ and 2) Decipher the impact of water level changes on the ability of the Mackenzie Delta to affect riverine nutrient flow to the ocean. Specific activities for the coming field season include the following: This wo...


The frontline of permafrost thaw: a transect of eddy covariance towers across the southern Taiga Plains to better understand changing regional carbon and water budgets
Principal Investigator: Sonnentag, Oliver
Licenced Year(s): 2016 2015
Summary: The objectives of this research project are to: 1) determine 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 sporadic and discontinuous permafrost zones; 3) determine if the reported decrease (increase) in net carbon dioxide (methane) exchange based on flux measurements made...


Variability in peat plateau energy balance and water chemistry along a warming gradient
Principal Investigator: English, Michael C
Licenced 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) ...


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...


Towards Long-term Monitoring of the CO2 System in Arctic Rivers
Principal Investigator: Wang, Zhaohui 'Aleck'
Licenced Year(s): 2012 2011 2010
Summary: The objective of this research project is to make time-series measurements of the CO2 system in the Mackenzie River, near Inuvik, Northwest Territories. Monthly water sampling is taking place at the Mackenzie River near Inuvik by technicians from the Aurora Research Institute. Data will be shared with local communities for education purposes as well as annual reports and publications made avail...


Geological carbon in the Mackenzie River Basin: Sources and sinks of atmospheric carbon dioxide
Principal Investigator: Hilton, Robert G
Licenced Year(s): 2013 2011 2010 2009
Summary: The overall aim is to assess the carbon balance of the Mackenzie River Basin and to place constraints on the role of climatic and physical erosion processes in driving carbon dioxide source and sinks to the atmosphere and oceans. More specifically, the researchers aim to quantify the amount of chemical weathering that takes place in the Mackenzie River Basin; to quantify how much weathering of sil...


Tundra-Atmosphere Carbon Exchange
Principal Investigator: Lafleur, Peter M
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2007 2005 2004
Summary: The aim of this project is to study how greenhouse gases are exchanged between tundra and atmosphere. This will be related to environmental variables, such as soil and weather, to understand how climate change will impact the land, and in turn how these impacts might influence the climate. Previous measurements indicate that tundras near the Daring Lake Research Station are a net sink for CO2 d...


Carbon Dynamics in Chronosequence of Boreal Forest Ecosystems: a Production Ecological Approach
Principal Investigator: Osawa, Akira
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001
Summary: Northern forests are closely connected to the issue of global warming because they are likely to absorb much of the carbon dioxide that is emitted into the air by humans. The amount that these forests absorb, however, is not clear. The research team will...


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