1639 record(s) found with the tag "physical sciences" (multi-year projects are grouped):
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A Program to Evaluate Changing Northern Lake Ice Regimes
Principal Investigator: Dibike, Yonas
Licensed Year(s): 2020 2019 2018 2017 2016
Summary: The objectives of this project are to complete an on ice snow depth, ice thickness and composition survey along with collection under ice core water quality information. Sample locations from previous years are located using a handheld GPS. On ice, snow depth is measured using a tape measure. An ice auger is used to penetrate the ice cover and evaluate if white ice is present. If present, the d...


Permafrost and climate change, western Arctic Canada
Principal Investigator: Burn, Chris R
Licensed Year(s): 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998
Summary: The objective of this research is to understand the rate of ground warming in permafrost due to climate change and to measure the changes in ground surface characteristics that are occurring as a result. In particular, the research team are interested in changes in ground temperature, in the depth of the active layer, and in subsidence of the ground. The team are also interested in measuring how q...


Investigating the water quality of runoff from different terrain types
Principal Investigator: Hille, Erika C
Licensed Year(s): 2019 2018
Summary: The objectives are: 1) to examine how the water quality of streams varies spatially and determine what drives these differences (i.e., latitude, vegetation, surficial geology); and, 2) to examine how the water quality of streams varies temporally and determine what/how seasonal changes in water flow control water quality. The research team will collect water samples from a suite of study site...


Ice Bird 2019
Principal Investigator: Hendricks, Stefan
Licensed Year(s): 2019
Summary: Fundamental sea ice properties such as volume and surface characteristics change significantly within and between years. Arctic sea ice extent and thickness have undergone dramatic changes in the past decades. The strength of ice-albedo feedback mechanism depends on area-averaged ice concentration, snow and ice thickness and in summer significantly on melt pond fraction. The sea ice retreat in ...


Beaufort Sea Coastal Restoration – Exploring the Potential for Using Indigenous Plant Species to Revegetate Coastline Affected by Permafrost Thaw Slumping
Principal Investigator: Hille, Erika C
Licensed Year(s): 2019 2018
Summary: The objectives include: 1) Creating a series of maps showing the thaw slump activity along the Beaufort Sea Coast near Tuktoyaktuk; 2) developing detailed water, vegetation, and ground temperature maps of the study sites using drones; 3) examining the effects of thaw slumping on the water quality of landscape-level runoff to the Beaufort Sea; 4) examining the effects of coastal erosion and thaw ...


Long-term ecological and geomorphological investigations in the alpine tundra of the Mackenzie Mountains, NWT
Principal Investigator: Mamet, Steven D
Licensed Year(s): 2019
Summary: Objectives of this research project are to determine: 1) the status of permafrost landforms; 2) long-term recovery after abandonment of the CANOL No. 1 project, including oil spills and gravel pits; and, 3) the status of the treeline. Sampling protocols for permafrost include thaw depth probing, automated monitoring stations The research team will be examining the permafrost by thaw depth prob...


Understanding how alluvial fans form in periglacial environments
Principal Investigator: Palucis, Marisa C.
Licensed Year(s): 2019
Summary: The research team are proposing to conduct a detailed characterization of one alluvial fan located near Aklavik. The team want to assess how the alluvial fan is developing, determine the role of melted ground ice and snow in transporting sediment from the Aklavik Range to the alluvial fan, and sort out whether these alluvial fans have characteristics that can be identified on Mars. Once on the ...


Impacts of permafrost thaw on hydrology and water resources
Principal Investigator: Quinton, William L.
Licensed Year(s): 2019 2018 2017
Summary: Understanding the ecology and hydrology of ecosystems with thawing permafrost is a major challenge. To meet this, the research team will develop new knowledge on the eco-hydrology of the major ecosystems (i.e. bogs, fens, peat plateaus) needed to develop new science-based tools to predict the future supply for the next 50 years. The specific scientific objectives are: 1) Develop fundamental knowl...


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...


Climate change impacts on lake ecosystems of the western Canadian Arctic
Principal Investigator: Korosi, Jennifer B
Licensed Year(s): 2019
Summary: The objectives of this research is to: 1) determine if thaw slumping results in the loss of a large-bodied zooplankton species (Daphnia) from lakes; and 2) measure polychlorinated biphenyl concentrations in lake sediments near the Distant Early Warning Line site in Tuktoyaktuk, to assess whether legacy contamination is still evident. The research team will be collecting sediment cores from ...


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