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permafrost degradationphysical sciences
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5 record(s) found in the location "Dehcho Region" (multi-year projects are grouped):
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Investigating the Effects of Winter Overland Travel in sub-Arctic Boreal Forest
Principal Investigator: Kanigan, Julian
Licensed Year(s): 2012 2011
Summary: In discontinuous permafrost of the southern NWT, cleared transportation corridors, such as seismic lines, have recently been associated with permafrost loss, increased soil moisture and vegetation changes. Permafrost loss can lead to ground subsidence, infrastructure instability and the release of stored carbon into the atmosphere. The research team will test whether seismic lines can be construc...
Licensed Year(s): 2012 2011
Summary: In discontinuous permafrost of the southern NWT, cleared transportation corridors, such as seismic lines, have recently been associated with permafrost loss, increased soil moisture and vegetation changes. Permafrost loss can lead to ground subsidence, infrastructure instability and the release of stored carbon into the atmosphere. The research team will test whether seismic lines can be construc...
Active Layer Monitoring Network in the Mackenzie Valley
Principal Investigator: Nixon, Fredrick M.
Licensed Year(s): 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990
Summary: The goal of this research is to understand how the active layer, which overlies the permafrost and thaws and re-freezes every year, will respond to environmental change, including climate warming. Active layer thickness can influence hunting, fishing, gathering and forestry through vegetation and soil conditions. The character of the active layer affects transportation and construction, while chan...
Licensed Year(s): 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990
Summary: The goal of this research is to understand how the active layer, which overlies the permafrost and thaws and re-freezes every year, will respond to environmental change, including climate warming. Active layer thickness can influence hunting, fishing, gathering and forestry through vegetation and soil conditions. The character of the active layer affects transportation and construction, while chan...
Reconstruction of Holocene Environments
Principal Investigator: Begin, Christian
Licensed Year(s): 1990
Summary: The research team will investigate a few localities to determine the best sites to study eolian deposits (sand dunes) and features related to permafrost degradation. Samples of granular and organic deposits will be taken....
Licensed Year(s): 1990
Summary: The research team will investigate a few localities to determine the best sites to study eolian deposits (sand dunes) and features related to permafrost degradation. Samples of granular and organic deposits will be taken....
The Influence of Thermokarst Subsidence on Peatland and the Role of Climatic Change within the Discontinuous Permafrost Zone in the Southern Mackenzie Valley
Principal Investigator: Spivey, Diane
Licensed Year(s): 1988
Summary: Diane Spivey is interested in knowing why there is less permafrost now in peatbogs. First, she will be mapping areas that have thawed and collapsed. Then, she will be looking and sampling vegetation to see if the vegetation has been disturbed so that it no longer insulates the permafrost as well. Last, she will look to see how well peat retains heat and acts as an insulator. She will use this i...
Licensed Year(s): 1988
Summary: Diane Spivey is interested in knowing why there is less permafrost now in peatbogs. First, she will be mapping areas that have thawed and collapsed. Then, she will be looking and sampling vegetation to see if the vegetation has been disturbed so that it no longer insulates the permafrost as well. Last, she will look to see how well peat retains heat and acts as an insulator. She will use this i...
Licence #4055
Principal Investigator: Pilon, Jean
Licensed Year(s): 1984
Summary: To carry on with the establishment of a series of permafrost observatories in the NWT to provide a cross section of permafrost conditions, through wihch to conduct long term reserch on permafrost characteristics, permafrost stability, permafrost climate interaction and its response to man induced and natural disturbances, at which to evaluate new tools to determine the properties of permafrost....
Licensed Year(s): 1984
Summary: To carry on with the establishment of a series of permafrost observatories in the NWT to provide a cross section of permafrost conditions, through wihch to conduct long term reserch on permafrost characteristics, permafrost stability, permafrost climate interaction and its response to man induced and natural disturbances, at which to evaluate new tools to determine the properties of permafrost....
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