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landscape disturbancephysical sciences
climate change
revegetation
ecological survey
surficial stability
seismic line
permafrost
vegetation
community based monitoring
satellite imagery
mapping
land use management
arctic lakes
hydrology
geochemistry
paleolimnology
nutrient levels
active layer
soil
5 dossier(s) trouvé(s) portant l’étiquette "permafrost degradation" (les projets pluriannuels sont regroupés):
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A Multi-scale Assessment of Cumulative Impacts in the Northern Mackenzie Basin
chercheur principal: Lantz, Trevor C.
Année(s) de permis: 2016 2015 2014 2013 2012
Résumé: This project has three main objectives: Objective 1: To use satellite imagery (Landsat, QuickBird, InSAR, etc.) to document the rate and extent of landscape change (slumps, subsidence, vegetation change, etc.) in the northern Mackenzie Basin. To quantify landscape disturbances and vegetation regeneration patterns since 1985 Landsat satellite images will be obtained, that will provide refle...
Année(s) de permis: 2016 2015 2014 2013 2012
Résumé: This project has three main objectives: Objective 1: To use satellite imagery (Landsat, QuickBird, InSAR, etc.) to document the rate and extent of landscape change (slumps, subsidence, vegetation change, etc.) in the northern Mackenzie Basin. To quantify landscape disturbances and vegetation regeneration patterns since 1985 Landsat satellite images will be obtained, that will provide refle...
Investigating the Effects of Winter Overland Travel in sub-Arctic Boreal Forest
chercheur principal: Kanigan, Julian
Année(s) de permis: 2012 2011
Résumé: 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...
Année(s) de permis: 2012 2011
Résumé: 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...
Long-term ecological and geomorphological investigations in the alpine tundra of the Mackenzie Mountains, NWT
chercheur principal: Kershaw, G. Peter
Année(s) de permis: 2018 2017 2016 2015 2014 2012 2010 2009 2008 2007 2006 2005 2004 2003
Résumé: Permafrost landforms are shrinking in response to climate warming. The researchers want to measure the amount of change each year and to measure the temperature of the permafrost year-round. In addition they want to measure the rate of plant recovery on disturbed areas resulting from the CANOL Project (1942-45). Access during the summer is via the Yukon along the Canol Road through Macmillan ...
Année(s) de permis: 2018 2017 2016 2015 2014 2012 2010 2009 2008 2007 2006 2005 2004 2003
Résumé: Permafrost landforms are shrinking in response to climate warming. The researchers want to measure the amount of change each year and to measure the temperature of the permafrost year-round. In addition they want to measure the rate of plant recovery on disturbed areas resulting from the CANOL Project (1942-45). Access during the summer is via the Yukon along the Canol Road through Macmillan ...
Sensitivity of high-latitude lakes to climatic & development disturbances
chercheur principal: Prowse, Terry D
Année(s) de permis: 2008 2007 2006 2005
Résumé: The researchers want to develop a model for small Arctic lakes that will help them see how sensitive or vulnerable Arctic lake ecosystems are to various forms of disturbance, such as future climate change or water withdrawal. In order to develop their m...
Année(s) de permis: 2008 2007 2006 2005
Résumé: The researchers want to develop a model for small Arctic lakes that will help them see how sensitive or vulnerable Arctic lake ecosystems are to various forms of disturbance, such as future climate change or water withdrawal. In order to develop their m...
Retrogressive Thaw Slides in the Richardson Range: Climate Change Indicator
chercheur principal: Lacelle, Denis
Année(s) de permis: 2000
Résumé: This is a study of retrogressive thaw sumps produced by the exposure and melting of massive ice in continuous permafrost (Richardson Range, NWT). These sumps are recently occurring and presumably a result of global climate change. This research will recognize retrogressive thaw slumps that have massive ice, identify the type of massive ice (glacier buried or segregated) and measure the rate of ...
Année(s) de permis: 2000
Résumé: This is a study of retrogressive thaw sumps produced by the exposure and melting of massive ice in continuous permafrost (Richardson Range, NWT). These sumps are recently occurring and presumably a result of global climate change. This research will recognize retrogressive thaw slumps that have massive ice, identify the type of massive ice (glacier buried or segregated) and measure the rate of ...
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