NWT RESEARCH DATABASE

Principal Investigator: Baltzer, Jennifer L
Licensed Year(s): 2015 2014
Summary: The primary objective is to quantify the relationships between vegetation community composition, structure and near-surface ground ice content. An improved understanding of ground ice-vegetation interactions allows a better understanding of permafrost ecosystems the ability to more easily measure near surface ground ice conditions. Around Yellowknife there is a patchwork of bedrock outcrops sep...

Principal Investigator: Williams, Mathew
Licensed Year(s): 2014 2013 2012
Summary: The aim of the proposed project is to develop, parameterize and evaluate a detailed process-based model of vegetation soil- permafrost interactions using data collected through directed field campaigns in the discontinuous and sporadic permafrost zones of western Canada. The research team will (i) elucidate the role of plant biodiversity in controlling permafrost status in contrasting ecosystems w...

Principal Investigator: Sonnentag, Oliver
Licensed Year(s): 2022 2021 2019 2018 2017 2016 2015 2014 2013
Summary: Through this project the research team will address the following objectives: What is the net effect of permafrost thawing-induced biophysical and biogeochemical feedbacks to the climate system? How do these two types of feedback differ between the discontinuous and continuous permafrost zones? Is the reported decrease (increase) in net CO2 (CH4) exchange based on plot- (<1m2) and ecosystem-scale ...

Principal Investigator: Lantz, Trevor C.
Licensed Year(s): 2016 2015 2014 2013 2012
Summary: 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...

Principal Investigator: Lantz, Trevor C.
Licensed Year(s): 2011 2010
Summary: There are two objectives associated with this research project. The first is to establish vegetation and permafrost monitoring sites in the Inuvialuit Settlement Region (ISR) and the Gwich’in Settlement Area (GSA). The establishment of these permanent monitoring sites will improve our understanding of base-line environmental conditions in the region. The second goal for the 2011 monitoring season...

Principal Investigator: Kokelj, Steven V
Licensed Year(s): 2012 2011 2010 2009 2008 2007 2006 2005
Summary: This study will include: 1) monitoring permafrost conditions in the Mackenzie Delta region; 2) examining freeze-back of the active layer and associated strength properties of freezing soil; 3) examining the influence of shrub removal on frozen ground and snow conditions at abandoned drilling-mud sumps; 4) investigating effectiveness of different soil sampling protocols on delineating contaminants ...

Principal Investigator: Chiperzak, Doug
Licensed Year(s): 2006
Summary: Biophysical and heritage resource surveys will take place in late summer and fall, and contribute to the assessment of a potential development projects (the Tuk 2 M-18 well site and connecting pipeline to Parsons Lake and the Mackenzie Gas Pipeline) located in the Tuktoyaktuk Peninsula, about 12 km southeast of Tuktoyaktuk and 125 km northeast of Inuvik. The field assessment will involve four s...

Principal Investigator: Marsh, Philip
Licensed Year(s): 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006
Summary: The project includes studies on the rates and processes controlling snow accumulation, snowmelt, water flux through snow, and exchange of water between snow cover, active layer and permafrost. The effect of snow or soil temperature regime and vegetation types on runoff processes, evaporation processes, and development of physically-based, predictive models of snowmelt runoff will also be studied i...

Principal Investigator: Nguyen, Thai-Nguyen
Licensed Year(s): 2006 2005
Summary: The objective of this research is to determine the spatial correlation between surface properties and active-layer thickness. Six sites have been established across the treeline, between Inuvik and Swimming Point. At each site, shallow temperature cables are installed in the active-layer and near-surface permafrost and air temperatures are monitored by data logger. During this project, the res...

Principal Investigator: Povey, Andrew
Licensed Year(s): 2005 2004 2003 2002
Summary: The 2005 terrestrial studies in the Inuvialuit Settlement Region (ISR) will include vegetation classification, rare plant surveys, and landform, soil and permafrost investigations. The studies will be conducted by three- or four-person crews supported by helicopter and based in Inuvik. A local assistant will be hired as part of each survey team. Air calls from a helicopter will be used to map ...